top95 catalog of methods required (revised 9:03 AM 11/26/2005)
---------------------------------
http://www.stolaf.edu/people/hansonr/sudoku/top95-methods.htm
Bob Hanson 7:01 AM 11/25/2005 hansonr@stolaf.edu http://www.stolaf.edu/people/hansonr

See also top95-analysis.htm.

Source: 

This table was generated as follows:

1. started Sudoku Assistant http://www.stolaf.edu/people/hansonr/sudoku/
2. clicked on "numeric block input"
3. selected "all95" (http://magictour.free.fr/top95) 
4. carried out "automatic run"
5. clicked on "show run log"
6. moved that information into Microsoft Excel
7. played around with it a bit

Methods used (in order of necessity):

   cross-hatch scanning (looking for singles; required) 
   range checking (locked candidates) 
   row/cell/block subset elimination 
W: grid (weak cycle) analysis (X-wings, Swordfish, etc.) 
M: 3D Medusa chain analysis -- strong+weak
P: hypothesis and disproof (trial and error)

Uniqueness and magic cells weren't tested. 

Summary:

methods puzzles
------  -------
basic      25
   M       21
   MP      25
  W         2
  WM        6
  WMP      16
--------------
Total      95


puz  meth  #W   #M   #P  #steps
-------------------------------
 1                         28
 2                         34
 3                         32
 4   M          1          51
 5   M          2          49
 6                         29
 7   MP         5    6     50
 8   M          4          50
 9   MP         6    8     55
10   M          4          52
11   MP         3    3     43
12   MP        10    3     31
13   M          3          32
14  WMP    1    5    1     46
15                         34
16   MP         2    2     43
17   M          4          26
18                         39
19   MP         2    6     32
20   MP         9    2     34
21                         49
22   MP         2    1     30
23                         30
24   M          3          31
25   M          1          25
26                         28
27                         32
28   MP         5    2     39
29   M          7          26
30                         42
31  WMP    1    4    5     36
32   M          3          33
33                         26
34                         39
35  WMP    2   20    6     56
36                         25
37                         30
38  WM     1    1          25
39  WMP    2    8    3     29
40   MP         8    2     39
41   M          2          51
42                         41
43  WMP    1    1    5     34
44                         23
45  WMP    2   32   21     82
46   MP         1    2     35
47   M          4          39
48   MP        16    5     43
49                         34
50   MP        19   10     58
51  WMP    1    3    1     38
52  WM     1   10          49
53  WM     1    2          24
54  WMP    2    9    8     43
55   M          6          26
56   MP         9   12     51
57                         25
58  WMP    1   10   13     52
59  WMP    2    6   10     45
60  WMP    1   14   24     67
61  WMP    1    6    7     41
62                         35
63  W      1               26
64  WMP    2   11    9     55
65   MP        10    4     41
66  WMP    1   11    6     47
67                         41
68   MP         3    1     45
69  WMP    4   12   21     63
70   M          5          34
71  WM     1    1          41
72   M          2          25
73                         41
74   M          1          41
75   MP         7   33     72
76   M          2          45
77  WM     1    1          26
78                         22
79                         42
80   M          1          42
81   MP         8    1     27
82   M          6          32
83   MP         3    2     46
84                         29
85  WM     2   13          37
86   MP        13    3     43
87   M          4          28
88   MP        17    1     50
89   MP        13    3     47
90   MP         3    3     35
91   MP         9    1     35
92   MP        17    1     61
93  WMP    1   12   15     64
94   M          8          33
95  W      1               36

 
Puzzle #1 Solving 
4.....8.5.3..........7......2.....6.....8.4......1.......6.3.7.5..2.....1.4......
 
4..|...|8.5
.3.|...|...
...|7..|...
---+---+---
.2.|...|.6.
...|.8.|4..
...|.1.|...
---+---+---
...|6.3|.7.
5..|2..|...
1.4|...|...
 
Strong Chains:  1  2  3  4  5  6  7  8  9  10  11 
64 cells left to solve; 17 clues; 411 tidbits of information
64 cells left to solve; 17 clues; 411 tidbits of information
61 cells left to solve; 20 clues; 438 tidbits of information
61 cells left to solve; 20 clues; 440 tidbits of information
60 cells left to solve; 21 clues; 449 tidbits of information
60 cells left to solve; 21 clues; 451 tidbits of information
58 cells left to solve; 23 clues; 470 tidbits of information
56 cells left to solve; 25 clues; 486 tidbits of information
54 cells left to solve; 27 clues; 496 tidbits of information
51 cells left to solve; 30 clues; 512 tidbits of information
51 cells left to solve; 30 clues; 513 tidbits of information
51 cells left to solve; 30 clues; 514 tidbits of information
51 cells left to solve; 30 clues; 515 tidbits of information
51 cells left to solve; 30 clues; 516 tidbits of information
51 cells left to solve; 30 clues; 517 tidbits of information
51 cells left to solve; 30 clues; 519 tidbits of information
51 cells left to solve; 30 clues; 520 tidbits of information
51 cells left to solve; 30 clues; 521 tidbits of information
51 cells left to solve; 30 clues; 522 tidbits of information
50 cells left to solve; 31 clues; 531 tidbits of information
48 cells left to solve; 33 clues; 540 tidbits of information
46 cells left to solve; 35 clues; 554 tidbits of information
40 cells left to solve; 41 clues; 575 tidbits of information
33 cells left to solve; 48 clues; 597 tidbits of information
30 cells left to solve; 51 clues; 609 tidbits of information
23 cells left to solve; 58 clues; 622 tidbits of information
14 cells left to solve; 67 clues; 637 tidbits of information
5 cells left to solve; 76 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#1 Done! (28 steps)
417369825632158947958724316825437169791586432346912758289643571573291684164875293
 
417|369|825
632|158|947
958|724|316
---+---+---
825|437|169
791|586|432
346|912|758
---+---+---
289|643|571
573|291|684
164|875|293
 
Puzzle #2 Solving 
52...6.........7.13...........4..8..6......5...........418.........3..2...87.....
 
52.|..6|...
...|...|7.1
3..|...|...
---+---+---
...|4..|8..
6..|...|.5.
...|...|...
---+---+---
.41|8..|...
...|.3.|.2.
..8|7..|...
 
64 cells left to solve; 17 clues; 407 tidbits of information
61 cells left to solve; 20 clues; 433 tidbits of information
61 cells left to solve; 20 clues; 434 tidbits of information
61 cells left to solve; 20 clues; 435 tidbits of information
61 cells left to solve; 20 clues; 436 tidbits of information
61 cells left to solve; 20 clues; 438 tidbits of information
60 cells left to solve; 21 clues; 452 tidbits of information
60 cells left to solve; 21 clues; 454 tidbits of information
60 cells left to solve; 21 clues; 456 tidbits of information
60 cells left to solve; 21 clues; 457 tidbits of information
60 cells left to solve; 21 clues; 458 tidbits of information
60 cells left to solve; 21 clues; 459 tidbits of information
60 cells left to solve; 21 clues; 460 tidbits of information
60 cells left to solve; 21 clues; 461 tidbits of information
60 cells left to solve; 21 clues; 462 tidbits of information
60 cells left to solve; 21 clues; 463 tidbits of information
60 cells left to solve; 21 clues; 465 tidbits of information
58 cells left to solve; 23 clues; 480 tidbits of information
55 cells left to solve; 26 clues; 495 tidbits of information
51 cells left to solve; 30 clues; 516 tidbits of information
51 cells left to solve; 30 clues; 517 tidbits of information
50 cells left to solve; 31 clues; 526 tidbits of information
48 cells left to solve; 33 clues; 538 tidbits of information
44 cells left to solve; 37 clues; 557 tidbits of information
38 cells left to solve; 43 clues; 575 tidbits of information
34 cells left to solve; 47 clues; 589 tidbits of information
31 cells left to solve; 50 clues; 597 tidbits of information
29 cells left to solve; 52 clues; 606 tidbits of information
24 cells left to solve; 57 clues; 619 tidbits of information
20 cells left to solve; 61 clues; 623 tidbits of information
16 cells left to solve; 65 clues; 627 tidbits of information
13 cells left to solve; 68 clues; 636 tidbits of information
7 cells left to solve; 74 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#2 Done! (34 steps)
527316489896542731314987562172453896689271354453698217941825673765134928238769145
 
527|316|489
896|542|731
314|987|562
---+---+---
172|453|896
689|271|354
453|698|217
---+---+---
941|825|673
765|134|928
238|769|145
 
Puzzle #3 Solving 
6.....8.3.4.7.................5.4.7.3..2.....1.6.......2.....5.....8.6......1....
 
6..|...|8.3
.4.|7..|...
...|...|...
---+---+---
...|5.4|.7.
3..|2..|...
1.6|...|...
---+---+---
.2.|...|.5.
...|.8.|6..
...|.1.|...
 
64 cells left to solve; 17 clues; 409 tidbits of information
61 cells left to solve; 20 clues; 436 tidbits of information
61 cells left to solve; 20 clues; 438 tidbits of information
60 cells left to solve; 21 clues; 448 tidbits of information
60 cells left to solve; 21 clues; 450 tidbits of information
58 cells left to solve; 23 clues; 469 tidbits of information
56 cells left to solve; 25 clues; 485 tidbits of information
54 cells left to solve; 27 clues; 496 tidbits of information
51 cells left to solve; 30 clues; 512 tidbits of information
51 cells left to solve; 30 clues; 513 tidbits of information
51 cells left to solve; 30 clues; 514 tidbits of information
51 cells left to solve; 30 clues; 515 tidbits of information
51 cells left to solve; 30 clues; 516 tidbits of information
51 cells left to solve; 30 clues; 517 tidbits of information
51 cells left to solve; 30 clues; 518 tidbits of information
51 cells left to solve; 30 clues; 519 tidbits of information
51 cells left to solve; 30 clues; 520 tidbits of information
50 cells left to solve; 31 clues; 529 tidbits of information
48 cells left to solve; 33 clues; 538 tidbits of information
46 cells left to solve; 35 clues; 552 tidbits of information
41 cells left to solve; 40 clues; 563 tidbits of information
39 cells left to solve; 42 clues; 567 tidbits of information
39 cells left to solve; 42 clues; 568 tidbits of information
38 cells left to solve; 43 clues; 571 tidbits of information
38 cells left to solve; 43 clues; 573 tidbits of information
37 cells left to solve; 44 clues; 582 tidbits of information
33 cells left to solve; 48 clues; 596 tidbits of information
30 cells left to solve; 51 clues; 609 tidbits of information
23 cells left to solve; 58 clues; 622 tidbits of information
14 cells left to solve; 67 clues; 638 tidbits of information
5 cells left to solve; 76 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#3 Done! (32 steps)
617459823248736915539128467982564371374291586156873294823647159791385642465912738
 
617|459|823
248|736|915
539|128|467
---+---+---
982|564|371
374|291|586
156|873|294
---+---+---
823|647|159
791|385|642
465|912|738
 
Puzzle #4 Solving 
48.3............71.2.......7.5....6....2..8.............1.76...3.....4......5....
 
48.|3..|...
...|...|.71
.2.|...|...
---+---+---
7.5|...|.6.
...|2..|8..
...|...|...
---+---+---
..1|.76|...
3..|...|4..
...|.5.|...
 
64 cells left to solve; 17 clues; 409 tidbits of information
62 cells left to solve; 19 clues; 428 tidbits of information
62 cells left to solve; 19 clues; 429 tidbits of information
62 cells left to solve; 19 clues; 430 tidbits of information
62 cells left to solve; 19 clues; 431 tidbits of information
62 cells left to solve; 19 clues; 432 tidbits of information
62 cells left to solve; 19 clues; 434 tidbits of information
62 cells left to solve; 19 clues; 436 tidbits of information
62 cells left to solve; 19 clues; 438 tidbits of information
62 cells left to solve; 19 clues; 439 tidbits of information
62 cells left to solve; 19 clues; 440 tidbits of information
62 cells left to solve; 19 clues; 441 tidbits of information
62 cells left to solve; 19 clues; 442 tidbits of information
62 cells left to solve; 19 clues; 443 tidbits of information
62 cells left to solve; 19 clues; 444 tidbits of information
62 cells left to solve; 19 clues; 445 tidbits of information
62 cells left to solve; 19 clues; 446 tidbits of information
62 cells left to solve; 19 clues; 447 tidbits of information
62 cells left to solve; 19 clues; 448 tidbits of information
62 cells left to solve; 19 clues; 449 tidbits of information
62 cells left to solve; 19 clues; 450 tidbits of information
62 cells left to solve; 19 clues; 451 tidbits of information
62 cells left to solve; 19 clues; 469 tidbits of information
61 cells left to solve; 20 clues; 478 tidbits of information
60 cells left to solve; 21 clues; 489 tidbits of information
60 cells left to solve; 21 clues; 490 tidbits of information
60 cells left to solve; 21 clues; 491 tidbits of information
60 cells left to solve; 21 clues; 492 tidbits of information
60 cells left to solve; 21 clues; 493 tidbits of information
60 cells left to solve; 21 clues; 494 tidbits of information
60 cells left to solve; 21 clues; 495 tidbits of information
60 cells left to solve; 21 clues; 510 tidbits of information
55 cells left to solve; 26 clues; 527 tidbits of information
52 cells left to solve; 29 clues; 546 tidbits of information
51 cells left to solve; 30 clues; 554 tidbits of information
50 cells left to solve; 31 clues; 557 tidbits of information
48 cells left to solve; 33 clues; 564 tidbits of information
46 cells left to solve; 35 clues; 569 tidbits of information
44 cells left to solve; 37 clues; 576 tidbits of information
44 cells left to solve; 37 clues; 586 tidbits of information
43 cells left to solve; 38 clues; 586 tidbits of information
43 cells left to solve; 38 clues; 587 tidbits of information
#4 M: strong incompatibility on 4 at cell r9c3 (involving nodes r9c3#2 chain 2(1) and r9c4#4 chain 2(0))
43 cells left to solve; 38 clues; 588 tidbits of information
42 cells left to solve; 39 clues; 595 tidbits of information
38 cells left to solve; 43 clues; 604 tidbits of information
36 cells left to solve; 45 clues; 609 tidbits of information
31 cells left to solve; 50 clues; 616 tidbits of information
26 cells left to solve; 55 clues; 624 tidbits of information
18 cells left to solve; 63 clues; 634 tidbits of information
8 cells left to solve; 73 clues; 643 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#4 Done! (51 steps)
487312695593684271126597384735849162914265837268731549851476923379128456642953718
 
487|312|695
593|684|271
126|597|384
---+---+---
735|849|162
914|265|837
268|731|549
---+---+---
851|476|923
379|128|456
642|953|718
 
Puzzle #5 Solving 
....14....3....2...7..........9...3.6.1.............8.2.....1.4....5.6.....7.8...
 
...|.14|...
.3.|...|2..
.7.|...|...
---+---+---
...|9..|.3.
6.1|...|...
...|...|.8.
---+---+---
2..|...|1.4
...|.5.|6..
...|7.8|...
 
64 cells left to solve; 17 clues; 417 tidbits of information
63 cells left to solve; 18 clues; 427 tidbits of information
63 cells left to solve; 18 clues; 428 tidbits of information
63 cells left to solve; 18 clues; 429 tidbits of information
63 cells left to solve; 18 clues; 430 tidbits of information
63 cells left to solve; 18 clues; 431 tidbits of information
63 cells left to solve; 18 clues; 433 tidbits of information
63 cells left to solve; 18 clues; 435 tidbits of information
63 cells left to solve; 18 clues; 436 tidbits of information
63 cells left to solve; 18 clues; 437 tidbits of information
63 cells left to solve; 18 clues; 438 tidbits of information
63 cells left to solve; 18 clues; 439 tidbits of information
63 cells left to solve; 18 clues; 440 tidbits of information
63 cells left to solve; 18 clues; 441 tidbits of information
62 cells left to solve; 19 clues; 446 tidbits of information
62 cells left to solve; 19 clues; 447 tidbits of information
62 cells left to solve; 19 clues; 448 tidbits of information
62 cells left to solve; 19 clues; 449 tidbits of information
62 cells left to solve; 19 clues; 467 tidbits of information
60 cells left to solve; 21 clues; 479 tidbits of information
60 cells left to solve; 21 clues; 480 tidbits of information
60 cells left to solve; 21 clues; 481 tidbits of information
60 cells left to solve; 21 clues; 482 tidbits of information
60 cells left to solve; 21 clues; 483 tidbits of information
60 cells left to solve; 21 clues; 484 tidbits of information
60 cells left to solve; 21 clues; 485 tidbits of information
60 cells left to solve; 21 clues; 499 tidbits of information
57 cells left to solve; 24 clues; 518 tidbits of information
52 cells left to solve; 29 clues; 532 tidbits of information
50 cells left to solve; 31 clues; 540 tidbits of information
50 cells left to solve; 31 clues; 545 tidbits of information
49 cells left to solve; 32 clues; 547 tidbits of information
#5 M: strong incompatibility on 5 at cell r9c1 (involving nodes r1c1#5 chain 2(1) and r9c9#5 chain 2(0))
49 cells left to solve; 32 clues; 548 tidbits of information
49 cells left to solve; 32 clues; 549 tidbits of information
48 cells left to solve; 33 clues; 551 tidbits of information
48 cells left to solve; 33 clues; 555 tidbits of information
#5 M: strong incompatibility on 9 at cell r9c1 (involving nodes r1c1#9 chain 2(0) and r9c9#9 chain 2(1))
48 cells left to solve; 33 clues; 556 tidbits of information
46 cells left to solve; 35 clues; 564 tidbits of information
41 cells left to solve; 40 clues; 578 tidbits of information
39 cells left to solve; 42 clues; 581 tidbits of information
37 cells left to solve; 44 clues; 584 tidbits of information
37 cells left to solve; 44 clues; 597 tidbits of information
36 cells left to solve; 45 clues; 600 tidbits of information
32 cells left to solve; 49 clues; 611 tidbits of information
24 cells left to solve; 57 clues; 624 tidbits of information
18 cells left to solve; 63 clues; 632 tidbits of information
13 cells left to solve; 68 clues; 639 tidbits of information
5 cells left to solve; 76 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#5 Done! (49 steps)
962314857134587269578296413847962531651873942329145786285639174793451628416728395
 
962|314|857
134|587|269
578|296|413
---+---+---
847|962|531
651|873|942
329|145|786
---+---+---
285|639|174
793|451|628
416|728|395
 
Puzzle #6 Solving 
......52..8.4......3...9...5.1...6..2..7........3.....6...1..........7.4.......3.
 
...|...|52.
.8.|4..|...
.3.|..9|...
---+---+---
5.1|...|6..
2..|7..|...
...|3..|...
---+---+---
6..|.1.|...
...|...|7.4
...|...|.3.
 
64 cells left to solve; 17 clues; 412 tidbits of information
61 cells left to solve; 20 clues; 431 tidbits of information
59 cells left to solve; 22 clues; 441 tidbits of information
58 cells left to solve; 23 clues; 444 tidbits of information
58 cells left to solve; 23 clues; 445 tidbits of information
58 cells left to solve; 23 clues; 446 tidbits of information
58 cells left to solve; 23 clues; 447 tidbits of information
58 cells left to solve; 23 clues; 448 tidbits of information
58 cells left to solve; 23 clues; 450 tidbits of information
58 cells left to solve; 23 clues; 452 tidbits of information
58 cells left to solve; 23 clues; 453 tidbits of information
58 cells left to solve; 23 clues; 454 tidbits of information
58 cells left to solve; 23 clues; 455 tidbits of information
58 cells left to solve; 23 clues; 457 tidbits of information
58 cells left to solve; 23 clues; 459 tidbits of information
58 cells left to solve; 23 clues; 461 tidbits of information
58 cells left to solve; 23 clues; 463 tidbits of information
58 cells left to solve; 23 clues; 465 tidbits of information
58 cells left to solve; 23 clues; 467 tidbits of information
58 cells left to solve; 23 clues; 493 tidbits of information
56 cells left to solve; 25 clues; 503 tidbits of information
52 cells left to solve; 29 clues; 525 tidbits of information
46 cells left to solve; 35 clues; 552 tidbits of information
40 cells left to solve; 41 clues; 577 tidbits of information
30 cells left to solve; 51 clues; 603 tidbits of information
25 cells left to solve; 56 clues; 615 tidbits of information
19 cells left to solve; 62 clues; 629 tidbits of information
9 cells left to solve; 72 clues; 642 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#6 Done! (29 steps)
416837529982465371735129468571298643293746185864351297647913852359682714128574936
 
416|837|529
982|465|371
735|129|468
---+---+---
571|298|643
293|746|185
864|351|297
---+---+---
647|913|852
359|682|714
128|574|936
 
Puzzle #7 Solving 
6.2.5.........3.4..........43...8....1....2........7..5..27...........81...6.....
 
6.2|.5.|...
...|..3|.4.
...|...|...
---+---+---
43.|..8|...
.1.|...|2..
...|...|7..
---+---+---
5..|27.|...
...|...|.81
...|6..|...
 
64 cells left to solve; 17 clues; 411 tidbits of information
62 cells left to solve; 19 clues; 427 tidbits of information
60 cells left to solve; 21 clues; 440 tidbits of information
59 cells left to solve; 22 clues; 446 tidbits of information
58 cells left to solve; 23 clues; 455 tidbits of information
58 cells left to solve; 23 clues; 456 tidbits of information
58 cells left to solve; 23 clues; 457 tidbits of information
58 cells left to solve; 23 clues; 458 tidbits of information
58 cells left to solve; 23 clues; 459 tidbits of information
58 cells left to solve; 23 clues; 460 tidbits of information
58 cells left to solve; 23 clues; 461 tidbits of information
58 cells left to solve; 23 clues; 462 tidbits of information
58 cells left to solve; 23 clues; 463 tidbits of information
58 cells left to solve; 23 clues; 464 tidbits of information
58 cells left to solve; 23 clues; 465 tidbits of information
58 cells left to solve; 23 clues; 466 tidbits of information
58 cells left to solve; 23 clues; 467 tidbits of information
58 cells left to solve; 23 clues; 468 tidbits of information
58 cells left to solve; 23 clues; 469 tidbits of information
58 cells left to solve; 23 clues; 470 tidbits of information
58 cells left to solve; 23 clues; 471 tidbits of information
58 cells left to solve; 23 clues; 472 tidbits of information
58 cells left to solve; 23 clues; 473 tidbits of information
58 cells left to solve; 23 clues; 481 tidbits of information
58 cells left to solve; 23 clues; 482 tidbits of information
58 cells left to solve; 23 clues; 483 tidbits of information
#7 M:  weak 0/1 corner between linked 1/0 strong chains 7 and 8
58 cells left to solve; 23 clues; 484 tidbits of information
#7 P: Node r8c1#9 may be eliminated
58 cells left to solve; 23 clues; 485 tidbits of information
#7 P: Node r6c2#8 may be eliminated
58 cells left to solve; 23 clues; 486 tidbits of information
#7 P: Node r8c2#4 may be eliminated
58 cells left to solve; 23 clues; 487 tidbits of information
#7 P: Node r8c2#6 may be eliminated
58 cells left to solve; 23 clues; 488 tidbits of information
#7 M:  weak 0/0 corner between linked 1/1 strong chains 8 and 17
58 cells left to solve; 23 clues; 489 tidbits of information
#7 P: Chain 17(1) may be eliminated.
58 cells left to solve; 23 clues; 490 tidbits of information
57 cells left to solve; 24 clues; 501 tidbits of information
57 cells left to solve; 24 clues; 502 tidbits of information
57 cells left to solve; 24 clues; 503 tidbits of information
#7 M:  weak 1/1 corner between linked 0/0 strong chains 2 and 5
#7 M:  weak 1/0 corner between linked 0/1 strong chains 2 and 8
#7 M:  weak 1/1 corner between linked 0/0 strong chains 2 and 15
57 cells left to solve; 24 clues; 506 tidbits of information
#7 P: Chain 1(0) may be eliminated.
57 cells left to solve; 24 clues; 508 tidbits of information
55 cells left to solve; 26 clues; 520 tidbits of information
52 cells left to solve; 29 clues; 539 tidbits of information
48 cells left to solve; 33 clues; 555 tidbits of information
45 cells left to solve; 36 clues; 567 tidbits of information
40 cells left to solve; 41 clues; 584 tidbits of information
30 cells left to solve; 51 clues; 597 tidbits of information
27 cells left to solve; 54 clues; 612 tidbits of information
26 cells left to solve; 55 clues; 615 tidbits of information
23 cells left to solve; 58 clues; 625 tidbits of information
16 cells left to solve; 65 clues; 634 tidbits of information
9 cells left to solve; 72 clues; 641 tidbits of information
4 cells left to solve; 77 clues; 647 tidbits of information
#7 Done! (50 steps)
682154379951763842374892165437528916816937254295416738568271493729345681143689527
 
682|154|379
951|763|842
374|892|165
---+---+---
437|528|916
816|937|254
295|416|738
---+---+---
568|271|493
729|345|681
143|689|527
 
Puzzle #8 Solving 
.524.........7.1..............8.2...3.....6...9.5.....1.6.3...........897........
 
.52|4..|...
...|.7.|1..
...|...|...
---+---+---
...|8.2|...
3..|...|6..
.9.|5..|...
---+---+---
1.6|.3.|...
...|...|.89
7..|...|...
 
64 cells left to solve; 17 clues; 413 tidbits of information
62 cells left to solve; 19 clues; 432 tidbits of information
62 cells left to solve; 19 clues; 433 tidbits of information
62 cells left to solve; 19 clues; 434 tidbits of information
62 cells left to solve; 19 clues; 435 tidbits of information
62 cells left to solve; 19 clues; 436 tidbits of information
62 cells left to solve; 19 clues; 437 tidbits of information
62 cells left to solve; 19 clues; 438 tidbits of information
62 cells left to solve; 19 clues; 439 tidbits of information
62 cells left to solve; 19 clues; 440 tidbits of information
62 cells left to solve; 19 clues; 441 tidbits of information
62 cells left to solve; 19 clues; 442 tidbits of information
62 cells left to solve; 19 clues; 443 tidbits of information
62 cells left to solve; 19 clues; 444 tidbits of information
62 cells left to solve; 19 clues; 445 tidbits of information
62 cells left to solve; 19 clues; 446 tidbits of information
62 cells left to solve; 19 clues; 447 tidbits of information
62 cells left to solve; 19 clues; 448 tidbits of information
62 cells left to solve; 19 clues; 449 tidbits of information
62 cells left to solve; 19 clues; 450 tidbits of information
62 cells left to solve; 19 clues; 451 tidbits of information
62 cells left to solve; 19 clues; 453 tidbits of information
61 cells left to solve; 20 clues; 463 tidbits of information
60 cells left to solve; 21 clues; 469 tidbits of information
59 cells left to solve; 22 clues; 478 tidbits of information
58 cells left to solve; 23 clues; 486 tidbits of information
57 cells left to solve; 24 clues; 491 tidbits of information
57 cells left to solve; 24 clues; 492 tidbits of information
57 cells left to solve; 24 clues; 502 tidbits of information
57 cells left to solve; 24 clues; 503 tidbits of information
57 cells left to solve; 24 clues; 504 tidbits of information
56 cells left to solve; 25 clues; 509 tidbits of information
56 cells left to solve; 25 clues; 510 tidbits of information
56 cells left to solve; 25 clues; 511 tidbits of information
56 cells left to solve; 25 clues; 512 tidbits of information
#8 M: strong incompatibility on 9 at cell r5c4 (involving nodes r4c5#9 chain 17(1) and r5c5#9 chain 17(0))
56 cells left to solve; 25 clues; 513 tidbits of information
#8 M: strong incompatibility on 7 at cell r8c6 (involving nodes r7c4#7 chain 9(0) and r8c6#6 chain 9(1))
56 cells left to solve; 25 clues; 514 tidbits of information
#8 M: strong incompatibility on 9 at cell r5c6 (involving nodes r4c5#9 chain 16(1) and r5c5#9 chain 16(0))
56 cells left to solve; 25 clues; 515 tidbits of information
#8 M: [chain 11(1)] can be eliminated due to conflicting weak link to [chain 7]
56 cells left to solve; 25 clues; 516 tidbits of information
55 cells left to solve; 26 clues; 522 tidbits of information
53 cells left to solve; 28 clues; 526 tidbits of information
51 cells left to solve; 30 clues; 535 tidbits of information
47 cells left to solve; 34 clues; 550 tidbits of information
39 cells left to solve; 42 clues; 578 tidbits of information
32 cells left to solve; 49 clues; 596 tidbits of information
26 cells left to solve; 55 clues; 611 tidbits of information
22 cells left to solve; 59 clues; 622 tidbits of information
17 cells left to solve; 64 clues; 629 tidbits of information
11 cells left to solve; 70 clues; 641 tidbits of information
2 cells left to solve; 79 clues; 648 tidbits of information
#8 Done! (50 steps)
652481937834679152971325864467812593315794628298563471186937245523146789749258316
 
652|481|937
834|679|152
971|325|864
---+---+---
467|812|593
315|794|628
298|563|471
---+---+---
186|937|245
523|146|789
749|258|316
 
Puzzle #9 Solving 
6.2.5.........4.3..........43...8....1....2........7..5..27...........81...6.....
 
6.2|.5.|...
...|..4|.3.
...|...|...
---+---+---
43.|..8|...
.1.|...|2..
...|...|7..
---+---+---
5..|27.|...
...|...|.81
...|6..|...
 
64 cells left to solve; 17 clues; 411 tidbits of information
62 cells left to solve; 19 clues; 427 tidbits of information
60 cells left to solve; 21 clues; 440 tidbits of information
59 cells left to solve; 22 clues; 446 tidbits of information
58 cells left to solve; 23 clues; 455 tidbits of information
58 cells left to solve; 23 clues; 456 tidbits of information
58 cells left to solve; 23 clues; 457 tidbits of information
58 cells left to solve; 23 clues; 458 tidbits of information
58 cells left to solve; 23 clues; 459 tidbits of information
58 cells left to solve; 23 clues; 460 tidbits of information
58 cells left to solve; 23 clues; 461 tidbits of information
58 cells left to solve; 23 clues; 462 tidbits of information
58 cells left to solve; 23 clues; 463 tidbits of information
58 cells left to solve; 23 clues; 464 tidbits of information
58 cells left to solve; 23 clues; 465 tidbits of information
58 cells left to solve; 23 clues; 466 tidbits of information
58 cells left to solve; 23 clues; 467 tidbits of information
58 cells left to solve; 23 clues; 468 tidbits of information
58 cells left to solve; 23 clues; 469 tidbits of information
58 cells left to solve; 23 clues; 470 tidbits of information
58 cells left to solve; 23 clues; 471 tidbits of information
58 cells left to solve; 23 clues; 472 tidbits of information
58 cells left to solve; 23 clues; 480 tidbits of information
58 cells left to solve; 23 clues; 481 tidbits of information
58 cells left to solve; 23 clues; 482 tidbits of information
58 cells left to solve; 23 clues; 483 tidbits of information
#9 M:  weak 0/1 corner between linked 1/0 strong chains 8 and 9
58 cells left to solve; 23 clues; 484 tidbits of information
#9 P: Node r8c1#3 may be eliminated
58 cells left to solve; 23 clues; 485 tidbits of information
#9 P: Node r8c1#9 may be eliminated
58 cells left to solve; 23 clues; 486 tidbits of information
#9 P: Node r8c2#6 may be eliminated
58 cells left to solve; 23 clues; 487 tidbits of information
#9 M:  weak 0/0 corner between linked 1/1 strong chains 9 and 18
58 cells left to solve; 23 clues; 488 tidbits of information
#9 P: Node r8c2#9 may be eliminated
58 cells left to solve; 23 clues; 489 tidbits of information
58 cells left to solve; 23 clues; 490 tidbits of information
#9 P: Node r3c1#7 may be eliminated
58 cells left to solve; 23 clues; 491 tidbits of information
#9 P: Node r5c1#7 may be eliminated
58 cells left to solve; 23 clues; 492 tidbits of information
58 cells left to solve; 23 clues; 493 tidbits of information
#9 P: Chain 19(1) may be eliminated.
58 cells left to solve; 23 clues; 494 tidbits of information
57 cells left to solve; 24 clues; 505 tidbits of information
57 cells left to solve; 24 clues; 506 tidbits of information
57 cells left to solve; 24 clues; 507 tidbits of information
#9 M:  weak 1/0 corner between linked 0/1 strong chains 2 and 6
#9 M:  weak 0/0 corner between linked 1/1 strong chains 6 and 9
#9 M:  weak 0/1 corner between linked 1/0 strong chains 6 and 17
#9 M:  weak 0/1 corner between linked 1/0 strong chains 9 and 20
57 cells left to solve; 24 clues; 511 tidbits of information
#9 P: Chain 2(1) may be eliminated.
57 cells left to solve; 24 clues; 513 tidbits of information
55 cells left to solve; 26 clues; 524 tidbits of information
52 cells left to solve; 29 clues; 533 tidbits of information
50 cells left to solve; 31 clues; 543 tidbits of information
47 cells left to solve; 34 clues; 556 tidbits of information
43 cells left to solve; 38 clues; 566 tidbits of information
40 cells left to solve; 41 clues; 574 tidbits of information
38 cells left to solve; 43 clues; 581 tidbits of information
35 cells left to solve; 46 clues; 590 tidbits of information
31 cells left to solve; 50 clues; 601 tidbits of information
28 cells left to solve; 53 clues; 608 tidbits of information
24 cells left to solve; 57 clues; 622 tidbits of information
16 cells left to solve; 65 clues; 636 tidbits of information
5 cells left to solve; 76 clues; 647 tidbits of information
#9 Done! (55 steps)
682153479951764832374892165437528916816947253295316748568271394729435681143689527
 
682|153|479
951|764|832
374|892|165
---+---+---
437|528|916
816|947|253
295|316|748
---+---+---
568|271|394
729|435|681
143|689|527
 
Puzzle #10 Solving 
.923.........8.1...........1.7.4...........658.........6.5.2...4.....7.....9.....
 
.92|3..|...
...|.8.|1..
...|...|...
---+---+---
1.7|.4.|...
...|...|.65
8..|...|...
---+---+---
.6.|5.2|...
4..|...|7..
...|9..|...
 
64 cells left to solve; 17 clues; 410 tidbits of information
62 cells left to solve; 19 clues; 430 tidbits of information
62 cells left to solve; 19 clues; 431 tidbits of information
62 cells left to solve; 19 clues; 432 tidbits of information
62 cells left to solve; 19 clues; 433 tidbits of information
62 cells left to solve; 19 clues; 434 tidbits of information
62 cells left to solve; 19 clues; 435 tidbits of information
62 cells left to solve; 19 clues; 436 tidbits of information
62 cells left to solve; 19 clues; 437 tidbits of information
62 cells left to solve; 19 clues; 438 tidbits of information
62 cells left to solve; 19 clues; 439 tidbits of information
62 cells left to solve; 19 clues; 440 tidbits of information
62 cells left to solve; 19 clues; 441 tidbits of information
62 cells left to solve; 19 clues; 442 tidbits of information
62 cells left to solve; 19 clues; 443 tidbits of information
62 cells left to solve; 19 clues; 444 tidbits of information
62 cells left to solve; 19 clues; 446 tidbits of information
61 cells left to solve; 20 clues; 456 tidbits of information
60 cells left to solve; 21 clues; 462 tidbits of information
59 cells left to solve; 22 clues; 471 tidbits of information
58 cells left to solve; 23 clues; 479 tidbits of information
57 cells left to solve; 24 clues; 484 tidbits of information
57 cells left to solve; 24 clues; 485 tidbits of information
57 cells left to solve; 24 clues; 486 tidbits of information
57 cells left to solve; 24 clues; 487 tidbits of information
57 cells left to solve; 24 clues; 488 tidbits of information
57 cells left to solve; 24 clues; 489 tidbits of information
57 cells left to solve; 24 clues; 490 tidbits of information
57 cells left to solve; 24 clues; 491 tidbits of information
57 cells left to solve; 24 clues; 501 tidbits of information
57 cells left to solve; 24 clues; 502 tidbits of information
57 cells left to solve; 24 clues; 503 tidbits of information
56 cells left to solve; 25 clues; 508 tidbits of information
56 cells left to solve; 25 clues; 509 tidbits of information
56 cells left to solve; 25 clues; 510 tidbits of information
56 cells left to solve; 25 clues; 511 tidbits of information
#10 M: strong incompatibility on 6 at cell r8c4 (involving nodes r8c5#6 chain 15(1) and r9c5#6 chain 15(0))
56 cells left to solve; 25 clues; 512 tidbits of information
#10 M: strong incompatibility on 8 at cell r5c6 (involving nodes r4c4#8 chain 9(1) and r5c6#7 chain 9(0))
56 cells left to solve; 25 clues; 513 tidbits of information
#10 M: strong incompatibility on 6 at cell r8c6 (involving nodes r8c5#6 chain 14(1) and r9c5#6 chain 14(0))
56 cells left to solve; 25 clues; 514 tidbits of information
#10 M: [chain 11(1)] can be eliminated due to conflicting weak link to [chain 16]
56 cells left to solve; 25 clues; 515 tidbits of information
55 cells left to solve; 26 clues; 522 tidbits of information
53 cells left to solve; 28 clues; 526 tidbits of information
51 cells left to solve; 30 clues; 535 tidbits of information
47 cells left to solve; 34 clues; 550 tidbits of information
39 cells left to solve; 42 clues; 578 tidbits of information
32 cells left to solve; 49 clues; 596 tidbits of information
26 cells left to solve; 55 clues; 610 tidbits of information
24 cells left to solve; 57 clues; 619 tidbits of information
21 cells left to solve; 60 clues; 625 tidbits of information
15 cells left to solve; 66 clues; 637 tidbits of information
6 cells left to solve; 75 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#10 Done! (52 steps)
792351648543786129681429537157648293924137865836295471368572914419863752275914386
 
792|351|648
543|786|129
681|429|537
---+---+---
157|648|293
924|137|865
836|295|471
---+---+---
368|572|914
419|863|752
275|914|386
 
Puzzle #11 Solving 
6..3.2....5.....1..........7.26............543.........8.15........4.2........7..
 
6..|3.2|...
.5.|...|.1.
...|...|...
---+---+---
7.2|6..|...
...|...|.54
3..|...|...
---+---+---
.8.|15.|...
...|.4.|2..
...|...|7..
 
64 cells left to solve; 17 clues; 409 tidbits of information
61 cells left to solve; 20 clues; 430 tidbits of information
57 cells left to solve; 24 clues; 454 tidbits of information
55 cells left to solve; 26 clues; 464 tidbits of information
54 cells left to solve; 27 clues; 473 tidbits of information
54 cells left to solve; 27 clues; 474 tidbits of information
54 cells left to solve; 27 clues; 475 tidbits of information
54 cells left to solve; 27 clues; 476 tidbits of information
54 cells left to solve; 27 clues; 477 tidbits of information
54 cells left to solve; 27 clues; 478 tidbits of information
54 cells left to solve; 27 clues; 479 tidbits of information
54 cells left to solve; 27 clues; 480 tidbits of information
54 cells left to solve; 27 clues; 481 tidbits of information
54 cells left to solve; 27 clues; 482 tidbits of information
54 cells left to solve; 27 clues; 483 tidbits of information
54 cells left to solve; 27 clues; 484 tidbits of information
54 cells left to solve; 27 clues; 485 tidbits of information
54 cells left to solve; 27 clues; 486 tidbits of information
54 cells left to solve; 27 clues; 494 tidbits of information
54 cells left to solve; 27 clues; 495 tidbits of information
54 cells left to solve; 27 clues; 496 tidbits of information
54 cells left to solve; 27 clues; 497 tidbits of information
#11 M:  weak 0/0 corner between linked 1/1 strong chains 9 and 16
54 cells left to solve; 27 clues; 498 tidbits of information
#11 P: Node r2c3#7 may be eliminated
54 cells left to solve; 27 clues; 499 tidbits of information
#11 P: Node r7c3#4 may be eliminated
54 cells left to solve; 27 clues; 500 tidbits of information
54 cells left to solve; 27 clues; 501 tidbits of information
#11 P: Chain 6(0) may be eliminated.
54 cells left to solve; 27 clues; 503 tidbits of information
53 cells left to solve; 28 clues; 506 tidbits of information
#11 M: strong incompatibility on 7 at cell r1c5 (involving nodes r2c4#7 chain 6(1) and r2c6#7 chain 6(0))
53 cells left to solve; 28 clues; 507 tidbits of information
#11 M: strong incompatibility on 7 at cell r3c5 (involving nodes r2c4#7 chain 6(1) and r2c6#7 chain 6(0))
53 cells left to solve; 28 clues; 508 tidbits of information
52 cells left to solve; 29 clues; 514 tidbits of information
50 cells left to solve; 31 clues; 519 tidbits of information
49 cells left to solve; 32 clues; 526 tidbits of information
46 cells left to solve; 35 clues; 542 tidbits of information
43 cells left to solve; 38 clues; 550 tidbits of information
42 cells left to solve; 39 clues; 557 tidbits of information
41 cells left to solve; 40 clues; 560 tidbits of information
40 cells left to solve; 41 clues; 564 tidbits of information
38 cells left to solve; 43 clues; 573 tidbits of information
33 cells left to solve; 48 clues; 597 tidbits of information
25 cells left to solve; 56 clues; 622 tidbits of information
14 cells left to solve; 67 clues; 639 tidbits of information
4 cells left to solve; 77 clues; 648 tidbits of information
#11 Done! (43 steps)
614382579953764812827591436742635198168279354395418627286157943579843261431926785
 
614|382|579
953|764|812
827|591|436
---+---+---
742|635|198
168|279|354
395|418|627
---+---+---
286|157|943
579|843|261
431|926|785
 
Puzzle #12 Solving 
.6.5.1.9.1...9..539....7....4.8...7.......5.8.817.5.3.....5.2............76..8...
 
.6.|5.1|.9.
1..|.9.|.53
9..|..7|...
---+---+---
.4.|8..|.7.
...|...|5.8
.81|7.5|.3.
---+---+---
...|.5.|2..
...|...|...
.76|..8|...
 
56 cells left to solve; 25 clues; 472 tidbits of information
53 cells left to solve; 28 clues; 493 tidbits of information
53 cells left to solve; 28 clues; 501 tidbits of information
#12 M: strong incompatibility on 9 at cell r4c7 (involving nodes r6c7#9 chain 12(1) and r6c9#9 chain 12(0))
53 cells left to solve; 28 clues; 502 tidbits of information
#12 M: strong incompatibility on 9 at cell r4c9 (involving nodes r6c7#9 chain 13(1) and r6c9#9 chain 13(0))
53 cells left to solve; 28 clues; 503 tidbits of information
#12 M:  weak 1/0 corner between linked 0/1 strong chains 1 and 16
53 cells left to solve; 28 clues; 504 tidbits of information
#12 P: Chain 2(0) may be eliminated.
53 cells left to solve; 28 clues; 507 tidbits of information
52 cells left to solve; 29 clues; 507 tidbits of information
#12 P: Chain 10(1) may be eliminated.
52 cells left to solve; 29 clues; 508 tidbits of information
51 cells left to solve; 30 clues; 515 tidbits of information
#12 M:  weak 1/0 corner between linked 0/1 strong chains 1 and 12
51 cells left to solve; 30 clues; 516 tidbits of information
#12 M:  weak 1/0 corner between linked 0/1 strong chains 1 and 17
#12 M:  weak 1/1 corner between linked 0/0 strong chains 12 and 16
51 cells left to solve; 30 clues; 518 tidbits of information
#12 P: Chain 1(0) may be eliminated.
51 cells left to solve; 30 clues; 519 tidbits of information
49 cells left to solve; 32 clues; 533 tidbits of information
46 cells left to solve; 35 clues; 544 tidbits of information
46 cells left to solve; 35 clues; 545 tidbits of information
46 cells left to solve; 35 clues; 546 tidbits of information
45 cells left to solve; 36 clues; 549 tidbits of information
45 cells left to solve; 36 clues; 550 tidbits of information
45 cells left to solve; 36 clues; 558 tidbits of information
#12 M:  weak 0/0 corner between linked 1/1 strong chains 9 and 10
#12 M:  weak 0/1 corner between linked 1/0 strong chains 10 and 12
#12 M:  weak 0/1 corner between linked 1/0 strong chains 15 and 17
45 cells left to solve; 36 clues; 561 tidbits of information
45 cells left to solve; 36 clues; 562 tidbits of information
45 cells left to solve; 36 clues; 566 tidbits of information
#12 M: [chain 14(1)] can be eliminated due to conflicting weak link to [chain 17]
45 cells left to solve; 36 clues; 570 tidbits of information
42 cells left to solve; 39 clues; 579 tidbits of information
38 cells left to solve; 43 clues; 589 tidbits of information
34 cells left to solve; 47 clues; 602 tidbits of information
26 cells left to solve; 55 clues; 616 tidbits of information
19 cells left to solve; 62 clues; 630 tidbits of information
10 cells left to solve; 71 clues; 642 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#12 Done! (31 steps)
863521794127496853954387621645839172739142568281765439498653217512974386376218945
 
863|521|794
127|496|853
954|387|621
---+---+---
645|839|172
739|142|568
281|765|439
---+---+---
498|653|217
512|974|386
376|218|945
 
Puzzle #13 Solving 
..5...987.4..5...1..7......2...48....9.1.....6..2.....3..6..2.......9.7.......5..
 
..5|...|987
.4.|.5.|..1
..7|...|...
---+---+---
2..|.48|...
.9.|1..|...
6..|2..|...
---+---+---
3..|6..|2..
...|..9|.7.
...|...|5..
 
60 cells left to solve; 21 clues; 461 tidbits of information
59 cells left to solve; 22 clues; 468 tidbits of information
59 cells left to solve; 22 clues; 469 tidbits of information
59 cells left to solve; 22 clues; 470 tidbits of information
59 cells left to solve; 22 clues; 471 tidbits of information
59 cells left to solve; 22 clues; 472 tidbits of information
59 cells left to solve; 22 clues; 473 tidbits of information
59 cells left to solve; 22 clues; 480 tidbits of information
59 cells left to solve; 22 clues; 485 tidbits of information
58 cells left to solve; 23 clues; 489 tidbits of information
#13 M: strong incompatibility on 5 at cell r4c2 (involving nodes r4c4#5 chain 11(0) and r7c2#5 chain 11(1))
58 cells left to solve; 23 clues; 490 tidbits of information
#13 M: [chain 15(1)] can be eliminated due to conflicting weak link to [chain 3]
58 cells left to solve; 23 clues; 492 tidbits of information
57 cells left to solve; 24 clues; 496 tidbits of information
#13 M: [chain 12(0)] can be eliminated due to conflicting weak link to [chain 3]
57 cells left to solve; 24 clues; 498 tidbits of information
56 cells left to solve; 25 clues; 502 tidbits of information
55 cells left to solve; 26 clues; 508 tidbits of information
52 cells left to solve; 29 clues; 523 tidbits of information
47 cells left to solve; 34 clues; 537 tidbits of information
47 cells left to solve; 34 clues; 538 tidbits of information
47 cells left to solve; 34 clues; 539 tidbits of information
47 cells left to solve; 34 clues; 540 tidbits of information
47 cells left to solve; 34 clues; 541 tidbits of information
46 cells left to solve; 35 clues; 548 tidbits of information
44 cells left to solve; 37 clues; 555 tidbits of information
42 cells left to solve; 39 clues; 563 tidbits of information
40 cells left to solve; 41 clues; 574 tidbits of information
37 cells left to solve; 44 clues; 587 tidbits of information
33 cells left to solve; 48 clues; 604 tidbits of information
27 cells left to solve; 54 clues; 619 tidbits of information
19 cells left to solve; 62 clues; 631 tidbits of information
9 cells left to solve; 72 clues; 641 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#13 Done! (32 steps)
135426987846957321927381465213748659598163742674295813351674298482539176769812534
 
135|426|987
846|957|321
927|381|465
---+---+---
213|748|659
598|163|742
674|295|813
---+---+---
351|674|298
482|539|176
769|812|534
 
Puzzle #14 Solving 
3.6.7...........518.........1.4.5...7.....6.....2......2.....4.....8.3.....5.....
 
3.6|.7.|...
...|...|.51
8..|...|...
---+---+---
.1.|4.5|...
7..|...|6..
...|2..|...
---+---+---
.2.|...|.4.
...|.8.|3..
...|5..|...
 
64 cells left to solve; 17 clues; 405 tidbits of information
60 cells left to solve; 21 clues; 438 tidbits of information
60 cells left to solve; 21 clues; 439 tidbits of information
59 cells left to solve; 22 clues; 449 tidbits of information
58 cells left to solve; 23 clues; 459 tidbits of information
57 cells left to solve; 24 clues; 467 tidbits of information
57 cells left to solve; 24 clues; 468 tidbits of information
57 cells left to solve; 24 clues; 470 tidbits of information
57 cells left to solve; 24 clues; 473 tidbits of information
56 cells left to solve; 25 clues; 482 tidbits of information
56 cells left to solve; 25 clues; 484 tidbits of information
55 cells left to solve; 26 clues; 493 tidbits of information
55 cells left to solve; 26 clues; 495 tidbits of information
54 cells left to solve; 27 clues; 499 tidbits of information
53 cells left to solve; 28 clues; 504 tidbits of information
53 cells left to solve; 28 clues; 505 tidbits of information
53 cells left to solve; 28 clues; 506 tidbits of information
53 cells left to solve; 28 clues; 507 tidbits of information
53 cells left to solve; 28 clues; 508 tidbits of information
53 cells left to solve; 28 clues; 509 tidbits of information
53 cells left to solve; 28 clues; 515 tidbits of information
52 cells left to solve; 29 clues; 523 tidbits of information
48 cells left to solve; 33 clues; 543 tidbits of information
45 cells left to solve; 36 clues; 554 tidbits of information
41 cells left to solve; 40 clues; 564 tidbits of information
#14 M: [chain 14(0)] can be eliminated due to conflicting weak link to [chain 15]
41 cells left to solve; 40 clues; 565 tidbits of information
40 cells left to solve; 41 clues; 571 tidbits of information
38 cells left to solve; 43 clues; 574 tidbits of information
38 cells left to solve; 43 clues; 575 tidbits of information
#14 M:  weak 1/1 corner between linked 0/0 strong chains 3 and 8
38 cells left to solve; 43 clues; 576 tidbits of information
38 cells left to solve; 43 clues; 577 tidbits of information
38 cells left to solve; 43 clues; 578 tidbits of information
38 cells left to solve; 43 clues; 579 tidbits of information
#14 W: 6 in columns 2,8 form a 2x2 closed circuit  (X-Wing)
38 cells left to solve; 43 clues; 582 tidbits of information
#14 M:  weak 0/1 corner between linked 1/0 strong chains 1 and 3
#14 M:  weak 1/1 corner between linked 0/0 strong chains 3 and 12
38 cells left to solve; 43 clues; 584 tidbits of information
#14 P: Chain 2(0) may be eliminated.
38 cells left to solve; 43 clues; 586 tidbits of information
37 cells left to solve; 44 clues; 589 tidbits of information
36 cells left to solve; 45 clues; 592 tidbits of information
#14 M: [chain 2(1)] can be eliminated due to conflicting weak link to [chain 10]
36 cells left to solve; 45 clues; 595 tidbits of information
34 cells left to solve; 47 clues; 597 tidbits of information
32 cells left to solve; 49 clues; 600 tidbits of information
29 cells left to solve; 52 clues; 606 tidbits of information
24 cells left to solve; 57 clues; 620 tidbits of information
15 cells left to solve; 66 clues; 634 tidbits of information
8 cells left to solve; 73 clues; 643 tidbits of information
2 cells left to solve; 79 clues; 648 tidbits of information
#14 Done! (46 steps)
356871294972643851841952736213465987794318625685297413128736549569184372437529168
 
356|871|294
972|643|851
841|952|736
---+---+---
213|465|987
794|318|625
685|297|413
---+---+---
128|736|549
569|184|372
437|529|168
 
Puzzle #15 Solving 
1.....3.8.7.4..............2.3.1...........958.........5.6...7.....8.2...4.......
 
1..|...|3.8
.7.|4..|...
...|...|...
---+---+---
2.3|.1.|...
...|...|.95
8..|...|...
---+---+---
.5.|6..|.7.
...|.8.|2..
.4.|...|...
 
64 cells left to solve; 17 clues; 408 tidbits of information
62 cells left to solve; 19 clues; 427 tidbits of information
59 cells left to solve; 22 clues; 454 tidbits of information
58 cells left to solve; 23 clues; 465 tidbits of information
58 cells left to solve; 23 clues; 466 tidbits of information
58 cells left to solve; 23 clues; 467 tidbits of information
58 cells left to solve; 23 clues; 468 tidbits of information
58 cells left to solve; 23 clues; 469 tidbits of information
58 cells left to solve; 23 clues; 470 tidbits of information
58 cells left to solve; 23 clues; 471 tidbits of information
58 cells left to solve; 23 clues; 472 tidbits of information
58 cells left to solve; 23 clues; 473 tidbits of information
58 cells left to solve; 23 clues; 475 tidbits of information
58 cells left to solve; 23 clues; 477 tidbits of information
58 cells left to solve; 23 clues; 479 tidbits of information
58 cells left to solve; 23 clues; 481 tidbits of information
58 cells left to solve; 23 clues; 483 tidbits of information
58 cells left to solve; 23 clues; 485 tidbits of information
58 cells left to solve; 23 clues; 505 tidbits of information
55 cells left to solve; 26 clues; 509 tidbits of information
55 cells left to solve; 26 clues; 510 tidbits of information
55 cells left to solve; 26 clues; 511 tidbits of information
55 cells left to solve; 26 clues; 512 tidbits of information
55 cells left to solve; 26 clues; 521 tidbits of information
52 cells left to solve; 29 clues; 535 tidbits of information
46 cells left to solve; 35 clues; 555 tidbits of information
40 cells left to solve; 41 clues; 571 tidbits of information
38 cells left to solve; 43 clues; 579 tidbits of information
36 cells left to solve; 45 clues; 587 tidbits of information
33 cells left to solve; 48 clues; 597 tidbits of information
25 cells left to solve; 56 clues; 612 tidbits of information
21 cells left to solve; 60 clues; 625 tidbits of information
15 cells left to solve; 66 clues; 635 tidbits of information
6 cells left to solve; 75 clues; 646 tidbits of information
#15 Done! (34 steps)
129576348376428519584391627293815764417263895865749132958632471731984256642157983
 
129|576|348
376|428|519
584|391|627
---+---+---
293|815|764
417|263|895
865|749|132
---+---+---
958|632|471
731|984|256
642|157|983
 
Puzzle #16 Solving 
6..3.2....4.....1..........7.26............543.........8.15........4.2........7..
 
6..|3.2|...
.4.|...|.1.
...|...|...
---+---+---
7.2|6..|...
...|...|.54
3..|...|...
---+---+---
.8.|15.|...
...|.4.|2..
...|...|7..
 
64 cells left to solve; 17 clues; 407 tidbits of information
61 cells left to solve; 20 clues; 428 tidbits of information
56 cells left to solve; 25 clues; 458 tidbits of information
55 cells left to solve; 26 clues; 464 tidbits of information
54 cells left to solve; 27 clues; 473 tidbits of information
54 cells left to solve; 27 clues; 474 tidbits of information
54 cells left to solve; 27 clues; 475 tidbits of information
54 cells left to solve; 27 clues; 476 tidbits of information
54 cells left to solve; 27 clues; 477 tidbits of information
54 cells left to solve; 27 clues; 478 tidbits of information
54 cells left to solve; 27 clues; 479 tidbits of information
54 cells left to solve; 27 clues; 480 tidbits of information
54 cells left to solve; 27 clues; 481 tidbits of information
54 cells left to solve; 27 clues; 482 tidbits of information
54 cells left to solve; 27 clues; 483 tidbits of information
54 cells left to solve; 27 clues; 484 tidbits of information
54 cells left to solve; 27 clues; 485 tidbits of information
54 cells left to solve; 27 clues; 486 tidbits of information
54 cells left to solve; 27 clues; 487 tidbits of information
54 cells left to solve; 27 clues; 488 tidbits of information
54 cells left to solve; 27 clues; 496 tidbits of information
54 cells left to solve; 27 clues; 497 tidbits of information
54 cells left to solve; 27 clues; 498 tidbits of information
54 cells left to solve; 27 clues; 499 tidbits of information
#16 M:  weak 0/0 corner between linked 1/1 strong chains 9 and 16
54 cells left to solve; 27 clues; 500 tidbits of information
#16 P: Chain 6(0) may be eliminated.
54 cells left to solve; 27 clues; 502 tidbits of information
53 cells left to solve; 28 clues; 505 tidbits of information
#16 P: Chain 15(1) may be eliminated.
53 cells left to solve; 28 clues; 506 tidbits of information
52 cells left to solve; 29 clues; 513 tidbits of information
52 cells left to solve; 29 clues; 517 tidbits of information
#16 M: [chain 6(0)] can be eliminated due to conflicting weak link to [chain 5]
52 cells left to solve; 29 clues; 521 tidbits of information
48 cells left to solve; 33 clues; 529 tidbits of information
46 cells left to solve; 35 clues; 539 tidbits of information
43 cells left to solve; 38 clues; 555 tidbits of information
40 cells left to solve; 41 clues; 563 tidbits of information
39 cells left to solve; 42 clues; 571 tidbits of information
38 cells left to solve; 43 clues; 573 tidbits of information
35 cells left to solve; 46 clues; 584 tidbits of information
30 cells left to solve; 51 clues; 600 tidbits of information
23 cells left to solve; 58 clues; 619 tidbits of information
15 cells left to solve; 66 clues; 635 tidbits of information
8 cells left to solve; 73 clues; 644 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#16 Done! (43 steps)
615382479943765812827491536752634198168279354394518627286157943579843261431926785
 
615|382|479
943|765|812
827|491|536
---+---+---
752|634|198
168|279|354
394|518|627
---+---+---
286|157|943
579|843|261
431|926|785
 
Puzzle #17 Solving 
....3..9....2....1.5.9..............1.2.8.4.6.8.5...2..75......4.1..6..3.....4.6.
 
...|.3.|.9.
...|2..|..1
.5.|9..|...
---+---+---
...|...|...
1.2|.8.|4.6
.8.|5..|.2.
---+---+---
.75|...|...
4.1|..6|..3
...|..4|.6.
 
59 cells left to solve; 22 clues; 462 tidbits of information
55 cells left to solve; 26 clues; 486 tidbits of information
55 cells left to solve; 26 clues; 487 tidbits of information
55 cells left to solve; 26 clues; 488 tidbits of information
55 cells left to solve; 26 clues; 490 tidbits of information
55 cells left to solve; 26 clues; 491 tidbits of information
55 cells left to solve; 26 clues; 492 tidbits of information
55 cells left to solve; 26 clues; 510 tidbits of information
55 cells left to solve; 26 clues; 511 tidbits of information
55 cells left to solve; 26 clues; 515 tidbits of information
#17 M: strong incompatibility on 4 at cell r1c3 (involving nodes r1c4#4 chain 2(1) and r2c2#4 chain 2(0))
55 cells left to solve; 26 clues; 516 tidbits of information
#17 M: strong incompatibility on 4 at cell r2c5 (involving nodes r1c4#4 chain 2(1) and r2c2#4 chain 2(0))
55 cells left to solve; 26 clues; 517 tidbits of information
#17 M: strong incompatibility on 6 at cell r1c3 (involving nodes r1c4#6 chain 2(0) and r2c2#6 chain 2(1))
55 cells left to solve; 26 clues; 518 tidbits of information
#17 M: strong incompatibility on 6 at cell r2c5 (involving nodes r1c4#6 chain 3(0) and r2c2#6 chain 3(1))
55 cells left to solve; 26 clues; 519 tidbits of information
54 cells left to solve; 27 clues; 529 tidbits of information
54 cells left to solve; 27 clues; 530 tidbits of information
52 cells left to solve; 29 clues; 538 tidbits of information
49 cells left to solve; 32 clues; 548 tidbits of information
47 cells left to solve; 34 clues; 553 tidbits of information
46 cells left to solve; 35 clues; 557 tidbits of information
42 cells left to solve; 39 clues; 574 tidbits of information
38 cells left to solve; 43 clues; 583 tidbits of information
33 cells left to solve; 48 clues; 605 tidbits of information
24 cells left to solve; 57 clues; 623 tidbits of information
11 cells left to solve; 70 clues; 643 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#17 Done! (26 steps)
718435692963278541254961378547612839192387456386549127675893214421756983839124765
 
718|435|692
963|278|541
254|961|378
---+---+---
547|612|839
192|387|456
386|549|127
---+---+---
675|893|214
421|756|983
839|124|765
 
Puzzle #18 Solving 
45.....3....8.1....9...........5..9.2..7.....8.........1..4..........7.2...6..8..
 
45.|...|.3.
...|8.1|...
.9.|...|...
---+---+---
...|.5.|.9.
2..|7..|...
8..|...|...
---+---+---
.1.|.4.|...
...|...|7.2
...|6..|8..
 
64 cells left to solve; 17 clues; 409 tidbits of information
63 cells left to solve; 18 clues; 416 tidbits of information
61 cells left to solve; 20 clues; 429 tidbits of information
59 cells left to solve; 22 clues; 443 tidbits of information
58 cells left to solve; 23 clues; 447 tidbits of information
58 cells left to solve; 23 clues; 450 tidbits of information
58 cells left to solve; 23 clues; 453 tidbits of information
58 cells left to solve; 23 clues; 454 tidbits of information
58 cells left to solve; 23 clues; 455 tidbits of information
58 cells left to solve; 23 clues; 457 tidbits of information
58 cells left to solve; 23 clues; 459 tidbits of information
58 cells left to solve; 23 clues; 460 tidbits of information
58 cells left to solve; 23 clues; 461 tidbits of information
58 cells left to solve; 23 clues; 462 tidbits of information
58 cells left to solve; 23 clues; 464 tidbits of information
58 cells left to solve; 23 clues; 485 tidbits of information
58 cells left to solve; 23 clues; 486 tidbits of information
58 cells left to solve; 23 clues; 487 tidbits of information
58 cells left to solve; 23 clues; 488 tidbits of information
58 cells left to solve; 23 clues; 489 tidbits of information
58 cells left to solve; 23 clues; 490 tidbits of information
58 cells left to solve; 23 clues; 491 tidbits of information
58 cells left to solve; 23 clues; 492 tidbits of information
58 cells left to solve; 23 clues; 502 tidbits of information
57 cells left to solve; 24 clues; 512 tidbits of information
54 cells left to solve; 27 clues; 526 tidbits of information
52 cells left to solve; 29 clues; 536 tidbits of information
49 cells left to solve; 32 clues; 550 tidbits of information
44 cells left to solve; 37 clues; 568 tidbits of information
39 cells left to solve; 42 clues; 579 tidbits of information
34 cells left to solve; 47 clues; 591 tidbits of information
31 cells left to solve; 50 clues; 602 tidbits of information
26 cells left to solve; 55 clues; 611 tidbits of information
22 cells left to solve; 59 clues; 617 tidbits of information
20 cells left to solve; 61 clues; 622 tidbits of information
17 cells left to solve; 64 clues; 627 tidbits of information
13 cells left to solve; 68 clues; 636 tidbits of information
8 cells left to solve; 73 clues; 644 tidbits of information
2 cells left to solve; 79 clues; 648 tidbits of information
#18 Done! (39 steps)
458276931623891475197534286371452698269783154845169327712948563986315742534627819
 
458|276|931
623|891|475
197|534|286
---+---+---
371|452|698
269|783|154
845|169|327
---+---+---
712|948|563
986|315|742
534|627|819
 
Puzzle #19 Solving 
.237....68...6.59.9.....7......4.97.3.7.96..2.........5..47.........2....8.......
 
.23|7..|..6
8..|.6.|59.
9..|...|7..
---+---+---
...|.4.|97.
3.7|.96|..2
...|...|...
---+---+---
5..|47.|...
...|..2|...
.8.|...|...
 
58 cells left to solve; 23 clues; 453 tidbits of information
53 cells left to solve; 28 clues; 478 tidbits of information
51 cells left to solve; 30 clues; 491 tidbits of information
51 cells left to solve; 30 clues; 492 tidbits of information
51 cells left to solve; 30 clues; 493 tidbits of information
51 cells left to solve; 30 clues; 494 tidbits of information
51 cells left to solve; 30 clues; 495 tidbits of information
51 cells left to solve; 30 clues; 496 tidbits of information
51 cells left to solve; 30 clues; 497 tidbits of information
51 cells left to solve; 30 clues; 498 tidbits of information
51 cells left to solve; 30 clues; 499 tidbits of information
51 cells left to solve; 30 clues; 500 tidbits of information
51 cells left to solve; 30 clues; 501 tidbits of information
51 cells left to solve; 30 clues; 526 tidbits of information
50 cells left to solve; 31 clues; 529 tidbits of information
#19 P: Node r6c2#1 may be eliminated
50 cells left to solve; 31 clues; 530 tidbits of information
#19 P: Node r6c3#1 may be eliminated
50 cells left to solve; 31 clues; 531 tidbits of information
#19 P: Node r4c3#1 may be eliminated
50 cells left to solve; 31 clues; 532 tidbits of information
#19 P: Node r6c9#1 may be eliminated
50 cells left to solve; 31 clues; 533 tidbits of information
#19 P: Node r5c2#1 may be eliminated
50 cells left to solve; 31 clues; 534 tidbits of information
#19 P: Chain 9(1) may be eliminated.
50 cells left to solve; 31 clues; 535 tidbits of information
49 cells left to solve; 32 clues; 540 tidbits of information
48 cells left to solve; 33 clues; 544 tidbits of information
#19 M: strong incompatibility on 4 at cell r2c9 (involving nodes r2c3#4 chain 1(0) and r6c9#4 chain 1(1))
48 cells left to solve; 33 clues; 545 tidbits of information
#19 M: strong incompatibility on 4 at cell r6c9 (involving nodes r6c9#4 chain 1(1) and r3c9#4 chain 1(1))
48 cells left to solve; 33 clues; 553 tidbits of information
39 cells left to solve; 42 clues; 580 tidbits of information
31 cells left to solve; 50 clues; 602 tidbits of information
25 cells left to solve; 56 clues; 615 tidbits of information
17 cells left to solve; 64 clues; 629 tidbits of information
11 cells left to solve; 70 clues; 637 tidbits of information
7 cells left to solve; 74 clues; 643 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#19 Done! (32 steps)
123759486874261593965384721216543978357896142498127365532478619641932857789615234
 
123|759|486
874|261|593
965|384|721
---+---+---
216|543|978
357|896|142
498|127|365
---+---+---
532|478|619
641|932|857
789|615|234
 
Puzzle #20 Solving 
..84...3....3.....9....157479...8........7..514.....2...9.6...2.5....4......9..56
 
..8|4..|.3.
...|3..|...
9..|..1|574
---+---+---
79.|..8|...
...|..7|..5
14.|...|.2.
---+---+---
..9|.6.|..2
.5.|...|4..
...|.9.|.56
 
56 cells left to solve; 25 clues; 495 tidbits of information
56 cells left to solve; 25 clues; 496 tidbits of information
56 cells left to solve; 25 clues; 497 tidbits of information
56 cells left to solve; 25 clues; 498 tidbits of information
56 cells left to solve; 25 clues; 499 tidbits of information
56 cells left to solve; 25 clues; 500 tidbits of information
56 cells left to solve; 25 clues; 501 tidbits of information
56 cells left to solve; 25 clues; 515 tidbits of information
54 cells left to solve; 27 clues; 522 tidbits of information
54 cells left to solve; 27 clues; 523 tidbits of information
54 cells left to solve; 27 clues; 524 tidbits of information
#20 M:  weak 0/1 corner between linked 1/0 strong chains 13 and 14
54 cells left to solve; 27 clues; 525 tidbits of information
54 cells left to solve; 27 clues; 526 tidbits of information
54 cells left to solve; 27 clues; 527 tidbits of information
#20 P: Node r1c2#2 may be eliminated
54 cells left to solve; 27 clues; 528 tidbits of information
#20 P: Node r2c1#2 may be eliminated
54 cells left to solve; 27 clues; 529 tidbits of information
#20 M:  weak 0/1 corner between linked 1/0 strong chains 1 and 21
#20 M:  weak 0/1 corner between linked 1/0 strong chains 7 and 21
#20 M:  weak 1/0 corner between linked 0/1 strong chains 14 and 18
54 cells left to solve; 27 clues; 532 tidbits of information
53 cells left to solve; 28 clues; 535 tidbits of information
#20 M:  weak 0/0 corner between linked 1/1 strong chains 1 and 6
#20 M:  weak 0/0 corner between linked 1/1 strong chains 4 and 7
#20 M:  weak 0/0 corner between linked 1/1 strong chains 7 and 17
53 cells left to solve; 28 clues; 538 tidbits of information
#20 M:  weak 0/0 corner between linked 1/1 strong chains 1 and 3
#20 M:  weak 1/0 corner between linked 0/1 strong chains 1 and 8
53 cells left to solve; 28 clues; 540 tidbits of information
53 cells left to solve; 28 clues; 541 tidbits of information
53 cells left to solve; 28 clues; 542 tidbits of information
53 cells left to solve; 28 clues; 548 tidbits of information
52 cells left to solve; 29 clues; 552 tidbits of information
51 cells left to solve; 30 clues; 559 tidbits of information
47 cells left to solve; 34 clues; 574 tidbits of information
43 cells left to solve; 38 clues; 581 tidbits of information
40 cells left to solve; 41 clues; 588 tidbits of information
36 cells left to solve; 45 clues; 601 tidbits of information
29 cells left to solve; 52 clues; 613 tidbits of information
23 cells left to solve; 58 clues; 627 tidbits of information
13 cells left to solve; 68 clues; 640 tidbits of information
6 cells left to solve; 75 clues; 644 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#20 Done! (34 steps)
518476239427359618963821574795248361832617945146935827379564182651782493284193756
 
518|476|239
427|359|618
963|821|574
---+---+---
795|248|361
832|617|945
146|935|827
---+---+---
379|564|182
651|782|493
284|193|756
 
Puzzle #21 Solving 
.98.1....2......6.............3.2.5..84.........6.........4.8.93..5...........1..
 
.98|.1.|...
2..|...|.6.
...|...|...
---+---+---
...|3.2|.5.
.84|...|...
...|6..|...
---+---+---
...|.4.|8.9
3..|5..|...
...|...|1..
 
64 cells left to solve; 17 clues; 404 tidbits of information
61 cells left to solve; 20 clues; 433 tidbits of information
61 cells left to solve; 20 clues; 434 tidbits of information
61 cells left to solve; 20 clues; 435 tidbits of information
61 cells left to solve; 20 clues; 436 tidbits of information
61 cells left to solve; 20 clues; 437 tidbits of information
61 cells left to solve; 20 clues; 438 tidbits of information
61 cells left to solve; 20 clues; 439 tidbits of information
61 cells left to solve; 20 clues; 440 tidbits of information
61 cells left to solve; 20 clues; 441 tidbits of information
61 cells left to solve; 20 clues; 442 tidbits of information
61 cells left to solve; 20 clues; 443 tidbits of information
61 cells left to solve; 20 clues; 444 tidbits of information
61 cells left to solve; 20 clues; 445 tidbits of information
61 cells left to solve; 20 clues; 447 tidbits of information
61 cells left to solve; 20 clues; 449 tidbits of information
61 cells left to solve; 20 clues; 451 tidbits of information
61 cells left to solve; 20 clues; 452 tidbits of information
61 cells left to solve; 20 clues; 453 tidbits of information
61 cells left to solve; 20 clues; 454 tidbits of information
61 cells left to solve; 20 clues; 455 tidbits of information
60 cells left to solve; 21 clues; 461 tidbits of information
60 cells left to solve; 21 clues; 462 tidbits of information
60 cells left to solve; 21 clues; 463 tidbits of information
60 cells left to solve; 21 clues; 464 tidbits of information
60 cells left to solve; 21 clues; 476 tidbits of information
59 cells left to solve; 22 clues; 485 tidbits of information
58 cells left to solve; 23 clues; 496 tidbits of information
58 cells left to solve; 23 clues; 497 tidbits of information
58 cells left to solve; 23 clues; 498 tidbits of information
58 cells left to solve; 23 clues; 499 tidbits of information
58 cells left to solve; 23 clues; 500 tidbits of information
58 cells left to solve; 23 clues; 501 tidbits of information
58 cells left to solve; 23 clues; 502 tidbits of information
57 cells left to solve; 24 clues; 506 tidbits of information
56 cells left to solve; 25 clues; 512 tidbits of information
55 cells left to solve; 26 clues; 516 tidbits of information
55 cells left to solve; 26 clues; 517 tidbits of information
55 cells left to solve; 26 clues; 527 tidbits of information
51 cells left to solve; 30 clues; 535 tidbits of information
47 cells left to solve; 34 clues; 555 tidbits of information
42 cells left to solve; 39 clues; 572 tidbits of information
36 cells left to solve; 45 clues; 595 tidbits of information
30 cells left to solve; 51 clues; 604 tidbits of information
28 cells left to solve; 53 clues; 611 tidbits of information
22 cells left to solve; 59 clues; 625 tidbits of information
14 cells left to solve; 67 clues; 636 tidbits of information
7 cells left to solve; 74 clues; 643 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#21 Done! (49 steps)
498716523257839461136425987971382654684157392523694718765241839319578246842963175
 
498|716|523
257|839|461
136|425|987
---+---+---
971|382|654
684|157|392
523|694|718
---+---+---
765|241|839
319|578|246
842|963|175
 
Puzzle #22 Solving 
..247..58..............1.4.....2...9528.9.4....9...1.........3.3....75..685..2...
 
..2|47.|.58
...|...|...
...|..1|.4.
---+---+---
...|.2.|..9
528|.9.|4..
..9|...|1..
---+---+---
...|...|.3.
3..|..7|5..
685|..2|...
 
57 cells left to solve; 24 clues; 471 tidbits of information
54 cells left to solve; 27 clues; 491 tidbits of information
53 cells left to solve; 28 clues; 496 tidbits of information
52 cells left to solve; 29 clues; 501 tidbits of information
52 cells left to solve; 29 clues; 502 tidbits of information
52 cells left to solve; 29 clues; 503 tidbits of information
52 cells left to solve; 29 clues; 504 tidbits of information
52 cells left to solve; 29 clues; 505 tidbits of information
52 cells left to solve; 29 clues; 506 tidbits of information
52 cells left to solve; 29 clues; 507 tidbits of information
52 cells left to solve; 29 clues; 508 tidbits of information
52 cells left to solve; 29 clues; 509 tidbits of information
52 cells left to solve; 29 clues; 510 tidbits of information
52 cells left to solve; 29 clues; 511 tidbits of information
#22 M: strong incompatibility on 7 at cell r4c7 (involving nodes r5c8#7 chain 11(1) and r5c9#7 chain 11(0))
52 cells left to solve; 29 clues; 512 tidbits of information
#22 M: strong incompatibility on 7 at cell r4c8 (involving nodes r5c8#7 chain 11(1) and r5c9#7 chain 11(0))
52 cells left to solve; 29 clues; 513 tidbits of information
#22 P: Chain 10(1) may be eliminated.
52 cells left to solve; 29 clues; 515 tidbits of information
50 cells left to solve; 31 clues; 528 tidbits of information
48 cells left to solve; 33 clues; 538 tidbits of information
47 cells left to solve; 34 clues; 547 tidbits of information
43 cells left to solve; 38 clues; 561 tidbits of information
38 cells left to solve; 43 clues; 575 tidbits of information
34 cells left to solve; 47 clues; 584 tidbits of information
30 cells left to solve; 51 clues; 593 tidbits of information
27 cells left to solve; 54 clues; 605 tidbits of information
24 cells left to solve; 57 clues; 615 tidbits of information
21 cells left to solve; 60 clues; 622 tidbits of information
19 cells left to solve; 62 clues; 630 tidbits of information
11 cells left to solve; 70 clues; 641 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#22 Done! (30 steps)
132479658847563291956281347413725869528196473769348125271854936394617582685932714
 
132|479|658
847|563|291
956|281|347
---+---+---
413|725|869
528|196|473
769|348|125
---+---+---
271|854|936
394|617|582
685|932|714
 
Puzzle #23 Solving 
4.....8.5.3..........7......2.....6.....5.4......1.......6.3.7.5..2.....1.9......
 
4..|...|8.5
.3.|...|...
...|7..|...
---+---+---
.2.|...|.6.
...|.5.|4..
...|.1.|...
---+---+---
...|6.3|.7.
5..|2..|...
1.9|...|...
 
64 cells left to solve; 17 clues; 414 tidbits of information
61 cells left to solve; 20 clues; 441 tidbits of information
58 cells left to solve; 23 clues; 461 tidbits of information
55 cells left to solve; 26 clues; 479 tidbits of information
55 cells left to solve; 26 clues; 481 tidbits of information
54 cells left to solve; 27 clues; 488 tidbits of information
54 cells left to solve; 27 clues; 490 tidbits of information
52 cells left to solve; 29 clues; 505 tidbits of information
50 cells left to solve; 31 clues; 519 tidbits of information
46 cells left to solve; 35 clues; 532 tidbits of information
43 cells left to solve; 38 clues; 543 tidbits of information
43 cells left to solve; 38 clues; 544 tidbits of information
43 cells left to solve; 38 clues; 545 tidbits of information
43 cells left to solve; 38 clues; 546 tidbits of information
43 cells left to solve; 38 clues; 548 tidbits of information
43 cells left to solve; 38 clues; 549 tidbits of information
43 cells left to solve; 38 clues; 551 tidbits of information
43 cells left to solve; 38 clues; 552 tidbits of information
42 cells left to solve; 39 clues; 556 tidbits of information
41 cells left to solve; 40 clues; 565 tidbits of information
41 cells left to solve; 40 clues; 566 tidbits of information
41 cells left to solve; 40 clues; 580 tidbits of information
36 cells left to solve; 45 clues; 598 tidbits of information
29 cells left to solve; 52 clues; 609 tidbits of information
21 cells left to solve; 60 clues; 619 tidbits of information
19 cells left to solve; 62 clues; 624 tidbits of information
17 cells left to solve; 64 clues; 628 tidbits of information
13 cells left to solve; 68 clues; 634 tidbits of information
9 cells left to solve; 72 clues; 640 tidbits of information
4 cells left to solve; 77 clues; 646 tidbits of information
#23 Done! (30 steps)
417369825638125947952748316825437169791856432346912758284693571573281694169574283
 
417|369|825
638|125|947
952|748|316
---+---+---
825|437|169
791|856|432
346|912|758
---+---+---
284|693|571
573|281|694
169|574|283
 
Puzzle #24 Solving 
.2.3......63.....58.......15....9.3....7........1....8.879..26......6.7...6..7..4
 
.2.|3..|...
.63|...|..5
8..|...|..1
---+---+---
5..|..9|.3.
...|7..|...
...|1..|..8
---+---+---
.87|9..|26.
...|..6|.7.
..6|..7|..4
 
58 cells left to solve; 23 clues; 462 tidbits of information
56 cells left to solve; 25 clues; 472 tidbits of information
55 cells left to solve; 26 clues; 480 tidbits of information
55 cells left to solve; 26 clues; 481 tidbits of information
55 cells left to solve; 26 clues; 482 tidbits of information
55 cells left to solve; 26 clues; 483 tidbits of information
55 cells left to solve; 26 clues; 484 tidbits of information
55 cells left to solve; 26 clues; 485 tidbits of information
#24 M: strong incompatibility on 5 at cell r8c4 (involving nodes r7c5#5 chain 11(1) and r7c6#5 chain 11(0))
55 cells left to solve; 26 clues; 486 tidbits of information
#24 M: strong incompatibility on 5 at cell r8c5 (involving nodes r7c5#5 chain 12(1) and r7c6#5 chain 12(0))
55 cells left to solve; 26 clues; 487 tidbits of information
#24 M: strong incompatibility on 5 at cell r9c4 (involving nodes r7c5#5 chain 12(1) and r7c6#5 chain 12(0))
55 cells left to solve; 26 clues; 488 tidbits of information
54 cells left to solve; 27 clues; 497 tidbits of information
51 cells left to solve; 30 clues; 513 tidbits of information
50 cells left to solve; 31 clues; 519 tidbits of information
49 cells left to solve; 32 clues; 525 tidbits of information
47 cells left to solve; 34 clues; 536 tidbits of information
45 cells left to solve; 36 clues; 541 tidbits of information
44 cells left to solve; 37 clues; 542 tidbits of information
44 cells left to solve; 37 clues; 543 tidbits of information
43 cells left to solve; 38 clues; 550 tidbits of information
42 cells left to solve; 39 clues; 556 tidbits of information
40 cells left to solve; 41 clues; 567 tidbits of information
38 cells left to solve; 43 clues; 574 tidbits of information
37 cells left to solve; 44 clues; 576 tidbits of information
34 cells left to solve; 47 clues; 588 tidbits of information
30 cells left to solve; 51 clues; 603 tidbits of information
28 cells left to solve; 53 clues; 611 tidbits of information
24 cells left to solve; 57 clues; 619 tidbits of information
17 cells left to solve; 64 clues; 632 tidbits of information
10 cells left to solve; 71 clues; 642 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#24 Done! (31 steps)
925371486163498725874562391542689137618753942739124658487915263351246879296837514
 
925|371|486
163|498|725
874|562|391
---+---+---
542|689|137
618|753|942
739|124|658
---+---+---
487|915|263
351|246|879
296|837|514
 
Puzzle #25 Solving 
1.....7.9.4...72..8.........7..1..6.3.......5.6..4..2.........8..53...7.7.2....46
 
1..|...|7.9
.4.|..7|2..
8..|...|...
---+---+---
.7.|.1.|.6.
3..|...|..5
.6.|.4.|.2.
---+---+---
...|...|..8
..5|3..|.7.
7.2|...|.46
 
58 cells left to solve; 23 clues; 476 tidbits of information
53 cells left to solve; 28 clues; 498 tidbits of information
51 cells left to solve; 30 clues; 507 tidbits of information
49 cells left to solve; 32 clues; 514 tidbits of information
48 cells left to solve; 33 clues; 518 tidbits of information
48 cells left to solve; 33 clues; 519 tidbits of information
48 cells left to solve; 33 clues; 520 tidbits of information
48 cells left to solve; 33 clues; 521 tidbits of information
48 cells left to solve; 33 clues; 523 tidbits of information
48 cells left to solve; 33 clues; 540 tidbits of information
48 cells left to solve; 33 clues; 541 tidbits of information
48 cells left to solve; 33 clues; 542 tidbits of information
48 cells left to solve; 33 clues; 543 tidbits of information
#25 M: strong incompatibility on 1 at cell r7c8 (involving nodes r7c8#1 chain 9(0) and r7c3#1 chain 9(0))
48 cells left to solve; 33 clues; 549 tidbits of information
43 cells left to solve; 38 clues; 562 tidbits of information
39 cells left to solve; 42 clues; 577 tidbits of information
34 cells left to solve; 47 clues; 587 tidbits of information
33 cells left to solve; 48 clues; 591 tidbits of information
31 cells left to solve; 50 clues; 597 tidbits of information
28 cells left to solve; 53 clues; 604 tidbits of information
26 cells left to solve; 55 clues; 611 tidbits of information
22 cells left to solve; 59 clues; 622 tidbits of information
17 cells left to solve; 64 clues; 631 tidbits of information
11 cells left to solve; 70 clues; 639 tidbits of information
4 cells left to solve; 77 clues; 646 tidbits of information
#25 Done! (25 steps)
123456789649837251857291634274518963398672415561943827416725398985364172732189546
 
123|456|789
649|837|251
857|291|634
---+---+---
274|518|963
398|672|415
561|943|827
---+---+---
416|725|398
985|364|172
732|189|546
 
Puzzle #26 Solving 
4.....3.....8.2......7........1...8734.......6........5...6........1.4...82......
 
4..|...|3..
...|8.2|...
...|7..|...
---+---+---
...|1..|.87
34.|...|...
6..|...|...
---+---+---
5..|.6.|...
...|.1.|4..
.82|...|...
 
64 cells left to solve; 17 clues; 403 tidbits of information
62 cells left to solve; 19 clues; 416 tidbits of information
59 cells left to solve; 22 clues; 433 tidbits of information
58 cells left to solve; 23 clues; 439 tidbits of information
58 cells left to solve; 23 clues; 440 tidbits of information
58 cells left to solve; 23 clues; 442 tidbits of information
57 cells left to solve; 24 clues; 447 tidbits of information
57 cells left to solve; 24 clues; 448 tidbits of information
57 cells left to solve; 24 clues; 450 tidbits of information
57 cells left to solve; 24 clues; 452 tidbits of information
57 cells left to solve; 24 clues; 453 tidbits of information
57 cells left to solve; 24 clues; 454 tidbits of information
57 cells left to solve; 24 clues; 484 tidbits of information
55 cells left to solve; 26 clues; 495 tidbits of information
54 cells left to solve; 27 clues; 503 tidbits of information
53 cells left to solve; 28 clues; 508 tidbits of information
52 cells left to solve; 29 clues; 512 tidbits of information
52 cells left to solve; 29 clues; 515 tidbits of information
51 cells left to solve; 30 clues; 524 tidbits of information
50 cells left to solve; 31 clues; 531 tidbits of information
49 cells left to solve; 32 clues; 534 tidbits of information
45 cells left to solve; 36 clues; 550 tidbits of information
36 cells left to solve; 45 clues; 584 tidbits of information
30 cells left to solve; 51 clues; 604 tidbits of information
24 cells left to solve; 57 clues; 619 tidbits of information
17 cells left to solve; 64 clues; 631 tidbits of information
11 cells left to solve; 70 clues; 640 tidbits of information
3 cells left to solve; 78 clues; 648 tidbits of information
#26 Done! (28 steps)
475691328961832745823754196259143687347586219618927534534269871796318452182475963
 
475|691|328
961|832|745
823|754|196
---+---+---
259|143|687
347|586|219
618|927|534
---+---+---
534|269|871
796|318|452
182|475|963
 
Puzzle #27 Solving 
.......71.2.8........4.3...7...6..5....2..3..9........6...7.....8....4......5....
 
...|...|.71
.2.|8..|...
...|4.3|...
---+---+---
7..|.6.|.5.
...|2..|3..
9..|...|...
---+---+---
6..|.7.|...
.8.|...|4..
...|.5.|...
 
64 cells left to solve; 17 clues; 416 tidbits of information
62 cells left to solve; 19 clues; 428 tidbits of information
59 cells left to solve; 22 clues; 448 tidbits of information
56 cells left to solve; 25 clues; 465 tidbits of information
56 cells left to solve; 25 clues; 467 tidbits of information
56 cells left to solve; 25 clues; 469 tidbits of information
56 cells left to solve; 25 clues; 471 tidbits of information
56 cells left to solve; 25 clues; 472 tidbits of information
56 cells left to solve; 25 clues; 474 tidbits of information
56 cells left to solve; 25 clues; 476 tidbits of information
56 cells left to solve; 25 clues; 477 tidbits of information
56 cells left to solve; 25 clues; 478 tidbits of information
56 cells left to solve; 25 clues; 480 tidbits of information
56 cells left to solve; 25 clues; 481 tidbits of information
56 cells left to solve; 25 clues; 484 tidbits of information
55 cells left to solve; 26 clues; 491 tidbits of information
54 cells left to solve; 27 clues; 495 tidbits of information
54 cells left to solve; 27 clues; 497 tidbits of information
54 cells left to solve; 27 clues; 499 tidbits of information
53 cells left to solve; 28 clues; 504 tidbits of information
52 cells left to solve; 29 clues; 510 tidbits of information
51 cells left to solve; 30 clues; 514 tidbits of information
50 cells left to solve; 31 clues; 525 tidbits of information
45 cells left to solve; 36 clues; 550 tidbits of information
41 cells left to solve; 40 clues; 568 tidbits of information
31 cells left to solve; 50 clues; 599 tidbits of information
26 cells left to solve; 55 clues; 610 tidbits of information
24 cells left to solve; 57 clues; 617 tidbits of information
21 cells left to solve; 60 clues; 622 tidbits of information
17 cells left to solve; 64 clues; 631 tidbits of information
10 cells left to solve; 71 clues; 641 tidbits of information
3 cells left to solve; 78 clues; 648 tidbits of information
#27 Done! (32 steps)
349526871521897643876413529718369254465281397932745186654178932187932465293654718
 
349|526|871
521|897|643
876|413|529
---+---+---
718|369|254
465|281|397
932|745|186
---+---+---
654|178|932
187|932|465
293|654|718
 
Puzzle #28 Solving 
6..3.2....4.....8..........7.26............543.........8.15........8.2........7..
 
6..|3.2|...
.4.|...|.8.
...|...|...
---+---+---
7.2|6..|...
...|...|.54
3..|...|...
---+---+---
.8.|15.|...
...|.8.|2..
...|...|7..
 
64 cells left to solve; 17 clues; 406 tidbits of information
60 cells left to solve; 21 clues; 437 tidbits of information
56 cells left to solve; 25 clues; 465 tidbits of information
55 cells left to solve; 26 clues; 471 tidbits of information
54 cells left to solve; 27 clues; 479 tidbits of information
54 cells left to solve; 27 clues; 480 tidbits of information
53 cells left to solve; 28 clues; 485 tidbits of information
53 cells left to solve; 28 clues; 486 tidbits of information
53 cells left to solve; 28 clues; 487 tidbits of information
53 cells left to solve; 28 clues; 488 tidbits of information
53 cells left to solve; 28 clues; 489 tidbits of information
53 cells left to solve; 28 clues; 490 tidbits of information
53 cells left to solve; 28 clues; 491 tidbits of information
53 cells left to solve; 28 clues; 492 tidbits of information
53 cells left to solve; 28 clues; 493 tidbits of information
53 cells left to solve; 28 clues; 494 tidbits of information
53 cells left to solve; 28 clues; 495 tidbits of information
53 cells left to solve; 28 clues; 496 tidbits of information
53 cells left to solve; 28 clues; 497 tidbits of information
#28 M:  weak 0/0 corner between linked 1/1 strong chains 11 and 20
#28 M:  weak 0/0 corner between linked 1/1 strong chains 13 and 18
53 cells left to solve; 28 clues; 499 tidbits of information
#28 M: strong incompatibility on 4 at cell r8c8 (involving nodes r7c7#4 chain 18(1) and r7c8#4 chain 18(0))
53 cells left to solve; 28 clues; 500 tidbits of information
#28 M: strong incompatibility on 4 at cell r9c8 (involving nodes r7c7#4 chain 18(1) and r7c8#4 chain 18(0))
53 cells left to solve; 28 clues; 501 tidbits of information
#28 P: Chain 7(0) may be eliminated.
53 cells left to solve; 28 clues; 503 tidbits of information
52 cells left to solve; 29 clues; 506 tidbits of information
#28 P: Chain 19(1) may be eliminated.
52 cells left to solve; 29 clues; 507 tidbits of information
51 cells left to solve; 30 clues; 514 tidbits of information
51 cells left to solve; 30 clues; 518 tidbits of information
#28 M: [chain 17(0)] can be eliminated due to conflicting weak link to [chain 7]
51 cells left to solve; 30 clues; 519 tidbits of information
50 cells left to solve; 31 clues; 527 tidbits of information
47 cells left to solve; 34 clues; 549 tidbits of information
42 cells left to solve; 39 clues; 562 tidbits of information
40 cells left to solve; 41 clues; 574 tidbits of information
36 cells left to solve; 45 clues; 581 tidbits of information
32 cells left to solve; 49 clues; 595 tidbits of information
27 cells left to solve; 54 clues; 604 tidbits of information
23 cells left to solve; 58 clues; 614 tidbits of information
18 cells left to solve; 63 clues; 627 tidbits of information
12 cells left to solve; 69 clues; 639 tidbits of information
4 cells left to solve; 77 clues; 647 tidbits of information
#28 Done! (39 steps)
618342579943765182527891436752634891861279354394518627286157943179483265435926718
 
618|342|579
943|765|182
527|891|436
---+---+---
752|634|891
861|279|354
394|518|627
---+---+---
286|157|943
179|483|265
435|926|718
 
Puzzle #29 Solving 
.47.8...1............6..7..6....357......5....1..6....28..4.....9.1...4.....2.69.
 
.47|.8.|..1
...|...|...
...|6..|7..
---+---+---
6..|..3|57.
...|..5|...
.1.|.6.|...
---+---+---
28.|.4.|...
.9.|1..|.4.
...|.2.|69.
 
59 cells left to solve; 22 clues; 461 tidbits of information
55 cells left to solve; 26 clues; 482 tidbits of information
54 cells left to solve; 27 clues; 487 tidbits of information
54 cells left to solve; 27 clues; 488 tidbits of information
54 cells left to solve; 27 clues; 493 tidbits of information
#29 M:  weak 0/0 corner between linked 1/1 strong chains 2 and 5
54 cells left to solve; 27 clues; 494 tidbits of information
#29 M:  weak 1/0 corner between linked 0/1 strong chains 2 and 15
#29 M:  weak 0/0 corner between linked 1/1 strong chains 9 and 15
54 cells left to solve; 27 clues; 496 tidbits of information
#29 M:  weak 1/1 corner between linked 0/0 strong chains 6 and 9
#29 M:  weak 1/1 corner between linked 0/0 strong chains 6 and 15
#29 M:  weak 1/1 corner between linked 0/0 strong chains 8 and 15
#29 M:  weak 0/1 corner between linked 1/0 strong chains 11 and 13
54 cells left to solve; 27 clues; 500 tidbits of information
53 cells left to solve; 28 clues; 504 tidbits of information
53 cells left to solve; 28 clues; 505 tidbits of information
53 cells left to solve; 28 clues; 506 tidbits of information
53 cells left to solve; 28 clues; 507 tidbits of information
53 cells left to solve; 28 clues; 508 tidbits of information
51 cells left to solve; 30 clues; 519 tidbits of information
50 cells left to solve; 31 clues; 524 tidbits of information
49 cells left to solve; 32 clues; 532 tidbits of information
45 cells left to solve; 36 clues; 548 tidbits of information
42 cells left to solve; 39 clues; 555 tidbits of information
41 cells left to solve; 40 clues; 558 tidbits of information
39 cells left to solve; 42 clues; 563 tidbits of information
34 cells left to solve; 47 clues; 581 tidbits of information
29 cells left to solve; 52 clues; 597 tidbits of information
23 cells left to solve; 58 clues; 614 tidbits of information
17 cells left to solve; 64 clues; 631 tidbits of information
11 cells left to solve; 70 clues; 640 tidbits of information
4 cells left to solve; 77 clues; 647 tidbits of information
#29 Done! (26 steps)
947582361863471952152639784624813579738295416519764823285946137396157248471328695
 
947|582|361
863|471|952
152|639|784
---+---+---
624|813|579
738|295|416
519|764|823
---+---+---
285|946|137
396|157|248
471|328|695
 
Puzzle #30 Solving 
......8.17..2........5.6......7...5..1....3...8.......5......2..4..8....6...3....
 
...|...|8.1
7..|2..|...
...|5.6|...
---+---+---
...|7..|.5.
.1.|...|3..
.8.|...|...
---+---+---
5..|...|.2.
.4.|.8.|...
6..|.3.|...
 
64 cells left to solve; 17 clues; 410 tidbits of information
61 cells left to solve; 20 clues; 428 tidbits of information
58 cells left to solve; 23 clues; 449 tidbits of information
56 cells left to solve; 25 clues; 461 tidbits of information
56 cells left to solve; 25 clues; 462 tidbits of information
56 cells left to solve; 25 clues; 463 tidbits of information
56 cells left to solve; 25 clues; 464 tidbits of information
56 cells left to solve; 25 clues; 465 tidbits of information
55 cells left to solve; 26 clues; 470 tidbits of information
55 cells left to solve; 26 clues; 471 tidbits of information
55 cells left to solve; 26 clues; 472 tidbits of information
55 cells left to solve; 26 clues; 473 tidbits of information
55 cells left to solve; 26 clues; 474 tidbits of information
54 cells left to solve; 27 clues; 480 tidbits of information
54 cells left to solve; 27 clues; 482 tidbits of information
54 cells left to solve; 27 clues; 483 tidbits of information
53 cells left to solve; 28 clues; 489 tidbits of information
53 cells left to solve; 28 clues; 491 tidbits of information
53 cells left to solve; 28 clues; 492 tidbits of information
53 cells left to solve; 28 clues; 493 tidbits of information
53 cells left to solve; 28 clues; 494 tidbits of information
53 cells left to solve; 28 clues; 507 tidbits of information
53 cells left to solve; 28 clues; 508 tidbits of information
53 cells left to solve; 28 clues; 509 tidbits of information
53 cells left to solve; 28 clues; 510 tidbits of information
52 cells left to solve; 29 clues; 514 tidbits of information
51 cells left to solve; 30 clues; 521 tidbits of information
48 cells left to solve; 33 clues; 533 tidbits of information
47 cells left to solve; 34 clues; 538 tidbits of information
47 cells left to solve; 34 clues; 539 tidbits of information
47 cells left to solve; 34 clues; 540 tidbits of information
47 cells left to solve; 34 clues; 541 tidbits of information
47 cells left to solve; 34 clues; 557 tidbits of information
44 cells left to solve; 37 clues; 567 tidbits of information
38 cells left to solve; 43 clues; 581 tidbits of information
33 cells left to solve; 48 clues; 592 tidbits of information
30 cells left to solve; 51 clues; 602 tidbits of information
25 cells left to solve; 56 clues; 613 tidbits of information
20 cells left to solve; 61 clues; 626 tidbits of information
12 cells left to solve; 69 clues; 637 tidbits of information
8 cells left to solve; 73 clues; 641 tidbits of information
4 cells left to solve; 77 clues; 646 tidbits of information
#30 Done! (42 steps)
254379861761248593893516742326791458915824376487653219538167924142985637679432185
 
254|379|861
761|248|593
893|516|742
---+---+---
326|791|458
915|824|376
487|653|219
---+---+---
538|167|924
142|985|637
679|432|185
 
Puzzle #31 Solving 
38.6.......9.......2..3.51......5....3..1..6....4......17.5..8.......9.......7.32
 
38.|6..|...
..9|...|...
.2.|.3.|51.
---+---+---
...|..5|...
.3.|.1.|.6.
...|4..|...
---+---+---
.17|.5.|.8.
...|...|9..
...|..7|.32
 
60 cells left to solve; 21 clues; 451 tidbits of information
57 cells left to solve; 24 clues; 469 tidbits of information
55 cells left to solve; 26 clues; 479 tidbits of information
55 cells left to solve; 26 clues; 480 tidbits of information
55 cells left to solve; 26 clues; 481 tidbits of information
55 cells left to solve; 26 clues; 482 tidbits of information
55 cells left to solve; 26 clues; 483 tidbits of information
55 cells left to solve; 26 clues; 484 tidbits of information
55 cells left to solve; 26 clues; 502 tidbits of information
53 cells left to solve; 28 clues; 507 tidbits of information
53 cells left to solve; 28 clues; 508 tidbits of information
#31 P: Node r7c6#2 may be eliminated
53 cells left to solve; 28 clues; 509 tidbits of information
#31 M:  weak 1/1 corner between linked 0/0 strong chains 6 and 10
#31 M:  weak 1/1 corner between linked 0/0 strong chains 10 and 16
53 cells left to solve; 28 clues; 511 tidbits of information
#31 P: Node r8c1#4 may be eliminated
53 cells left to solve; 28 clues; 512 tidbits of information
#31 P: Node r8c6#2 may be eliminated
53 cells left to solve; 28 clues; 513 tidbits of information
#31 P: Chain 10(0) may be eliminated.
53 cells left to solve; 28 clues; 516 tidbits of information
51 cells left to solve; 30 clues; 520 tidbits of information
#31 P: Chain 1(1) may be eliminated.
51 cells left to solve; 30 clues; 524 tidbits of information
48 cells left to solve; 33 clues; 531 tidbits of information
48 cells left to solve; 33 clues; 532 tidbits of information
47 cells left to solve; 34 clues; 535 tidbits of information
46 cells left to solve; 35 clues; 539 tidbits of information
45 cells left to solve; 36 clues; 548 tidbits of information
43 cells left to solve; 38 clues; 557 tidbits of information
42 cells left to solve; 39 clues; 559 tidbits of information
42 cells left to solve; 39 clues; 560 tidbits of information
#31 W: 4 in columns 2,6,8 form a 3x3 closed circuit  (Swordfish)
42 cells left to solve; 39 clues; 566 tidbits of information
#31 M: strong incompatibility on 4 at cell r2c2 (involving nodes r3c1#4 chain 2(1) and r3c3#4 chain 2(0))
42 cells left to solve; 39 clues; 567 tidbits of information
#31 M: [chain 6(1)] can be eliminated due to conflicting weak link to [chain 3]
42 cells left to solve; 39 clues; 574 tidbits of information
37 cells left to solve; 44 clues; 583 tidbits of information
35 cells left to solve; 46 clues; 590 tidbits of information
30 cells left to solve; 51 clues; 606 tidbits of information
25 cells left to solve; 56 clues; 624 tidbits of information
17 cells left to solve; 64 clues; 635 tidbits of information
9 cells left to solve; 72 clues; 643 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#31 Done! (36 steps)
385621497179584326426739518762395841534812769891476253917253684243168975658947132
 
385|621|497
179|584|326
426|739|518
---+---+---
762|395|841
534|812|769
891|476|253
---+---+---
917|253|684
243|168|975
658|947|132
 
Puzzle #32 Solving 
...5...........5.697.....2...48.2...25.1...3..8..3.........4.7..13.5..9..2...31..
 
...|5..|...
...|...|5.6
97.|...|.2.
---+---+---
..4|8.2|...
25.|1..|.3.
.8.|.3.|...
---+---+---
...|..4|.7.
.13|.5.|.9.
.2.|..3|1..
 
57 cells left to solve; 24 clues; 484 tidbits of information
54 cells left to solve; 27 clues; 501 tidbits of information
54 cells left to solve; 27 clues; 502 tidbits of information
54 cells left to solve; 27 clues; 505 tidbits of information
54 cells left to solve; 27 clues; 508 tidbits of information
54 cells left to solve; 27 clues; 509 tidbits of information
54 cells left to solve; 27 clues; 510 tidbits of information
54 cells left to solve; 27 clues; 517 tidbits of information
54 cells left to solve; 27 clues; 518 tidbits of information
53 cells left to solve; 28 clues; 523 tidbits of information
52 cells left to solve; 29 clues; 526 tidbits of information
52 cells left to solve; 29 clues; 532 tidbits of information
50 cells left to solve; 31 clues; 535 tidbits of information
49 cells left to solve; 32 clues; 541 tidbits of information
#32 M: [chain 4(0)] can be eliminated due to conflicting weak link to [chain 14]
49 cells left to solve; 32 clues; 546 tidbits of information
45 cells left to solve; 36 clues; 555 tidbits of information
41 cells left to solve; 40 clues; 565 tidbits of information
37 cells left to solve; 44 clues; 577 tidbits of information
36 cells left to solve; 45 clues; 584 tidbits of information
35 cells left to solve; 46 clues; 589 tidbits of information
34 cells left to solve; 47 clues; 592 tidbits of information
33 cells left to solve; 48 clues; 595 tidbits of information
33 cells left to solve; 48 clues; 599 tidbits of information
33 cells left to solve; 48 clues; 600 tidbits of information
33 cells left to solve; 48 clues; 601 tidbits of information
#32 M: [chain 1(0)] can be eliminated due to conflicting weak link to [chain 5]
33 cells left to solve; 48 clues; 605 tidbits of information
31 cells left to solve; 50 clues; 605 tidbits of information
#32 M: [chain 1(1)] can be eliminated due to conflicting weak link to [chain 7]
31 cells left to solve; 50 clues; 609 tidbits of information
27 cells left to solve; 54 clues; 615 tidbits of information
23 cells left to solve; 58 clues; 622 tidbits of information
19 cells left to solve; 62 clues; 631 tidbits of information
9 cells left to solve; 72 clues; 641 tidbits of information
4 cells left to solve; 77 clues; 647 tidbits of information
#32 Done! (33 steps)
836521947142379586975648321364892715259167438781435269598214673413756892627983154
 
836|521|947
142|379|586
975|648|321
---+---+---
364|892|715
259|167|438
781|435|269
---+---+---
598|214|673
413|756|892
627|983|154
 
Puzzle #33 Solving 
.2.......3.5.62..9.68...3...5..........64.8.2..47..9....3.....1.....6...17.43....
 
.2.|...|...
3.5|.62|..9
.68|...|3..
---+---+---
.5.|...|...
...|64.|8.2
..4|7..|9..
---+---+---
..3|...|..1
...|..6|...
17.|43.|...
 
57 cells left to solve; 24 clues; 471 tidbits of information
56 cells left to solve; 25 clues; 478 tidbits of information
56 cells left to solve; 25 clues; 484 tidbits of information
56 cells left to solve; 25 clues; 485 tidbits of information
55 cells left to solve; 26 clues; 491 tidbits of information
54 cells left to solve; 27 clues; 498 tidbits of information
54 cells left to solve; 27 clues; 499 tidbits of information
54 cells left to solve; 27 clues; 500 tidbits of information
54 cells left to solve; 27 clues; 501 tidbits of information
54 cells left to solve; 27 clues; 512 tidbits of information
53 cells left to solve; 28 clues; 518 tidbits of information
53 cells left to solve; 28 clues; 519 tidbits of information
53 cells left to solve; 28 clues; 520 tidbits of information
53 cells left to solve; 28 clues; 521 tidbits of information
53 cells left to solve; 28 clues; 526 tidbits of information
51 cells left to solve; 30 clues; 535 tidbits of information
49 cells left to solve; 32 clues; 543 tidbits of information
49 cells left to solve; 32 clues; 550 tidbits of information
47 cells left to solve; 34 clues; 557 tidbits of information
44 cells left to solve; 37 clues; 565 tidbits of information
40 cells left to solve; 41 clues; 577 tidbits of information
36 cells left to solve; 45 clues; 591 tidbits of information
29 cells left to solve; 52 clues; 612 tidbits of information
20 cells left to solve; 61 clues; 626 tidbits of information
13 cells left to solve; 68 clues; 639 tidbits of information
4 cells left to solve; 77 clues; 647 tidbits of information
#33 Done! (26 steps)
427593186315862479968174325659328714731649852284751963593287641842916537176435298
 
427|593|186
315|862|479
968|174|325
---+---+---
659|328|714
731|649|852
284|751|963
---+---+---
593|287|641
842|916|537
176|435|298
 
Puzzle #34 Solving 
.8..4....3......1........2...5...4.69..1..8..2...........3.9....6....5.....2.....
 
.8.|.4.|...
3..|...|.1.
...|...|.2.
---+---+---
..5|...|4.6
9..|1..|8..
2..|...|...
---+---+---
...|3.9|...
.6.|...|5..
...|2..|...
 
64 cells left to solve; 17 clues; 405 tidbits of information
62 cells left to solve; 19 clues; 417 tidbits of information
60 cells left to solve; 21 clues; 431 tidbits of information
58 cells left to solve; 23 clues; 441 tidbits of information
58 cells left to solve; 23 clues; 442 tidbits of information
58 cells left to solve; 23 clues; 443 tidbits of information
58 cells left to solve; 23 clues; 444 tidbits of information
58 cells left to solve; 23 clues; 445 tidbits of information
58 cells left to solve; 23 clues; 446 tidbits of information
58 cells left to solve; 23 clues; 447 tidbits of information
58 cells left to solve; 23 clues; 448 tidbits of information
58 cells left to solve; 23 clues; 449 tidbits of information
58 cells left to solve; 23 clues; 450 tidbits of information
58 cells left to solve; 23 clues; 451 tidbits of information
58 cells left to solve; 23 clues; 453 tidbits of information
58 cells left to solve; 23 clues; 455 tidbits of information
58 cells left to solve; 23 clues; 457 tidbits of information
58 cells left to solve; 23 clues; 459 tidbits of information
58 cells left to solve; 23 clues; 461 tidbits of information
58 cells left to solve; 23 clues; 463 tidbits of information
58 cells left to solve; 23 clues; 498 tidbits of information
56 cells left to solve; 25 clues; 508 tidbits of information
53 cells left to solve; 28 clues; 524 tidbits of information
51 cells left to solve; 30 clues; 532 tidbits of information
50 cells left to solve; 31 clues; 537 tidbits of information
48 cells left to solve; 33 clues; 544 tidbits of information
47 cells left to solve; 34 clues; 546 tidbits of information
47 cells left to solve; 34 clues; 547 tidbits of information
47 cells left to solve; 34 clues; 548 tidbits of information
47 cells left to solve; 34 clues; 549 tidbits of information
47 cells left to solve; 34 clues; 550 tidbits of information
46 cells left to solve; 35 clues; 552 tidbits of information
44 cells left to solve; 37 clues; 559 tidbits of information
42 cells left to solve; 39 clues; 566 tidbits of information
39 cells left to solve; 42 clues; 579 tidbits of information
34 cells left to solve; 47 clues; 600 tidbits of information
27 cells left to solve; 54 clues; 618 tidbits of information
15 cells left to solve; 66 clues; 640 tidbits of information
3 cells left to solve; 78 clues; 648 tidbits of information
#34 Done! (39 steps)
781942365324576918659831724815723496936154872247698153578369241162487539493215687
 
781|942|365
324|576|918
659|831|724
---+---+---
815|723|496
936|154|872
247|698|153
---+---+---
578|369|241
162|487|539
493|215|687
 
Puzzle #35 Solving 
..8.9.1...6.5...2......6....3.1.7.5.........9..4...3...5....2...7...3.8.2..7....4
 
..8|.9.|1..
.6.|5..|.2.
...|..6|...
---+---+---
.3.|1.7|.5.
...|...|..9
..4|...|3..
---+---+---
.5.|...|2..
.7.|..3|.8.
2..|7..|..4
 
59 cells left to solve; 22 clues; 468 tidbits of information
59 cells left to solve; 22 clues; 469 tidbits of information
59 cells left to solve; 22 clues; 470 tidbits of information
59 cells left to solve; 22 clues; 471 tidbits of information
59 cells left to solve; 22 clues; 472 tidbits of information
59 cells left to solve; 22 clues; 473 tidbits of information
59 cells left to solve; 22 clues; 479 tidbits of information
58 cells left to solve; 23 clues; 483 tidbits of information
57 cells left to solve; 24 clues; 488 tidbits of information
#35 W: 7 in columns 3,5,7 form a 3x3 closed circuit  (Swordfish)
57 cells left to solve; 24 clues; 495 tidbits of information
#35 M:  weak 1/1 corner between linked 0/0 strong chains 9 and 16
57 cells left to solve; 24 clues; 496 tidbits of information
#35 P: Chain 6(1) may be eliminated.
57 cells left to solve; 24 clues; 497 tidbits of information
56 cells left to solve; 25 clues; 507 tidbits of information
55 cells left to solve; 26 clues; 517 tidbits of information
54 cells left to solve; 27 clues; 521 tidbits of information
54 cells left to solve; 27 clues; 523 tidbits of information
54 cells left to solve; 27 clues; 525 tidbits of information
54 cells left to solve; 27 clues; 526 tidbits of information
54 cells left to solve; 27 clues; 528 tidbits of information
#35 M:  weak 1/0 corner between linked 0/1 strong chains 1 and 13
#35 M:  weak 0/0 corner between linked 1/1 strong chains 9 and 10
#35 M:  weak 1/0 corner between linked 0/1 strong chains 11 and 15
54 cells left to solve; 27 clues; 531 tidbits of information
#35 M: strong incompatibility on 5 at cell r3c1 (involving nodes r1c1#5 chain 1(0) and r3c3#5 chain 1(1))
54 cells left to solve; 27 clues; 532 tidbits of information
#35 M:  weak 0/0 corner between linked 1/1 strong chains 2 and 8
54 cells left to solve; 27 clues; 533 tidbits of information
#35 P: Node r3c3#9 may be eliminated
54 cells left to solve; 27 clues; 534 tidbits of information
#35 P: Node r6c1#1 may be eliminated
54 cells left to solve; 27 clues; 535 tidbits of information
#35 P: Node r5c1#5 may be eliminated
54 cells left to solve; 27 clues; 536 tidbits of information
54 cells left to solve; 27 clues; 537 tidbits of information
#35 M:  weak 1/0 corner between linked 0/1 strong chains 1 and 5
54 cells left to solve; 27 clues; 538 tidbits of information
#35 P: Node r5c6#4 may be eliminated
54 cells left to solve; 27 clues; 539 tidbits of information
#35 P: Chain 5(1) may be eliminated.
54 cells left to solve; 27 clues; 545 tidbits of information
49 cells left to solve; 32 clues; 557 tidbits of information
49 cells left to solve; 32 clues; 558 tidbits of information
49 cells left to solve; 32 clues; 559 tidbits of information
49 cells left to solve; 32 clues; 560 tidbits of information
#35 M: [chain 9(0)] can be eliminated due to conflicting weak link to [chain 3]
49 cells left to solve; 32 clues; 562 tidbits of information
48 cells left to solve; 33 clues; 566 tidbits of information
48 cells left to solve; 33 clues; 567 tidbits of information
48 cells left to solve; 33 clues; 568 tidbits of information
#35 M:  weak 0/1 corner between linked 1/0 strong chains 1 and 6
#35 M:  weak 1/1 corner between linked 0/0 strong chains 1 and 7
#35 M:  weak 1/1 corner between linked 0/0 strong chains 2 and 8
#35 M:  weak 1/0 corner between linked 0/1 strong chains 2 and 13
#35 M:  weak 1/0 corner between linked 0/1 strong chains 4 and 14
#35 M:  weak 1/0 corner between linked 0/1 strong chains 7 and 14
#35 M:  weak 1/0 corner between linked 0/1 strong chains 7 and 15
#35 M:  weak 0/0 corner between linked 1/1 strong chains 8 and 16
#35 M:  weak 0/0 corner between linked 1/1 strong chains 10 and 14
#35 M:  weak 1/0 corner between linked 0/1 strong chains 12 and 16
48 cells left to solve; 33 clues; 578 tidbits of information
#35 W: 6 in rows 6,7 form a 2x2 closed circuit  (X-Wing)
48 cells left to solve; 33 clues; 580 tidbits of information
#35 M: strong incompatibility on 1 at cell r3c5 (involving nodes r2c5#1 chain 2(0) and r3c5#2 chain 2(1))
48 cells left to solve; 33 clues; 581 tidbits of information
47 cells left to solve; 34 clues; 583 tidbits of information
45 cells left to solve; 36 clues; 586 tidbits of information
44 cells left to solve; 37 clues; 590 tidbits of information
42 cells left to solve; 39 clues; 593 tidbits of information
39 cells left to solve; 42 clues; 598 tidbits of information
38 cells left to solve; 43 clues; 600 tidbits of information
36 cells left to solve; 45 clues; 603 tidbits of information
36 cells left to solve; 45 clues; 604 tidbits of information
36 cells left to solve; 45 clues; 605 tidbits of information
#35 M: strong incompatibility on 8 at cell r3c5 (involving nodes r3c5#7 chain 1(0) and r3c5#2 chain 1(1))
36 cells left to solve; 45 clues; 606 tidbits of information
35 cells left to solve; 46 clues; 610 tidbits of information
33 cells left to solve; 48 clues; 615 tidbits of information
28 cells left to solve; 53 clues; 624 tidbits of information
17 cells left to solve; 64 clues; 635 tidbits of information
8 cells left to solve; 73 clues; 642 tidbits of information
4 cells left to solve; 77 clues; 647 tidbits of information
#35 Done! (56 steps)
748392165369514728125876943932147856687235419514689372853461297476923581291758634
 
748|392|165
369|514|728
125|876|943
---+---+---
932|147|856
687|235|419
514|689|372
---+---+---
853|461|297
476|923|581
291|758|634
 
Puzzle #36 Solving 
4.....5.8.3..........7......2.....6.....5.8......1.......6.3.7.5..2.....1.8......
 
4..|...|5.8
.3.|...|...
...|7..|...
---+---+---
.2.|...|.6.
...|.5.|8..
...|.1.|...
---+---+---
...|6.3|.7.
5..|2..|...
1.8|...|...
 
64 cells left to solve; 17 clues; 407 tidbits of information
59 cells left to solve; 22 clues; 443 tidbits of information
56 cells left to solve; 25 clues; 461 tidbits of information
54 cells left to solve; 27 clues; 474 tidbits of information
53 cells left to solve; 28 clues; 482 tidbits of information
53 cells left to solve; 28 clues; 484 tidbits of information
52 cells left to solve; 29 clues; 492 tidbits of information
52 cells left to solve; 29 clues; 494 tidbits of information
50 cells left to solve; 31 clues; 513 tidbits of information
48 cells left to solve; 33 clues; 527 tidbits of information
44 cells left to solve; 37 clues; 541 tidbits of information
40 cells left to solve; 41 clues; 555 tidbits of information
38 cells left to solve; 43 clues; 561 tidbits of information
38 cells left to solve; 43 clues; 563 tidbits of information
38 cells left to solve; 43 clues; 564 tidbits of information
38 cells left to solve; 43 clues; 565 tidbits of information
38 cells left to solve; 43 clues; 566 tidbits of information
37 cells left to solve; 44 clues; 573 tidbits of information
35 cells left to solve; 46 clues; 585 tidbits of information
32 cells left to solve; 49 clues; 598 tidbits of information
28 cells left to solve; 53 clues; 605 tidbits of information
21 cells left to solve; 60 clues; 619 tidbits of information
16 cells left to solve; 65 clues; 633 tidbits of information
9 cells left to solve; 72 clues; 643 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#36 Done! (25 steps)
417369528839125746652748319925837461741956832386412957294683175573291684168574293
 
417|369|528
839|125|746
652|748|319
---+---+---
925|837|461
741|956|832
386|412|957
---+---+---
294|683|175
573|291|684
168|574|293
 
Puzzle #37 Solving 
1.....3.8.6.4..............2.3.1...........958.........5.6...7.....8.2...4.......
 
1..|...|3.8
.6.|4..|...
...|...|...
---+---+---
2.3|.1.|...
...|...|.95
8..|...|...
---+---+---
.5.|6..|.7.
...|.8.|2..
.4.|...|...
 
64 cells left to solve; 17 clues; 409 tidbits of information
62 cells left to solve; 19 clues; 428 tidbits of information
59 cells left to solve; 22 clues; 455 tidbits of information
58 cells left to solve; 23 clues; 466 tidbits of information
58 cells left to solve; 23 clues; 467 tidbits of information
58 cells left to solve; 23 clues; 468 tidbits of information
58 cells left to solve; 23 clues; 469 tidbits of information
58 cells left to solve; 23 clues; 470 tidbits of information
58 cells left to solve; 23 clues; 472 tidbits of information
58 cells left to solve; 23 clues; 474 tidbits of information
58 cells left to solve; 23 clues; 476 tidbits of information
58 cells left to solve; 23 clues; 478 tidbits of information
58 cells left to solve; 23 clues; 480 tidbits of information
58 cells left to solve; 23 clues; 482 tidbits of information
58 cells left to solve; 23 clues; 502 tidbits of information
55 cells left to solve; 26 clues; 506 tidbits of information
55 cells left to solve; 26 clues; 507 tidbits of information
55 cells left to solve; 26 clues; 508 tidbits of information
55 cells left to solve; 26 clues; 509 tidbits of information
55 cells left to solve; 26 clues; 520 tidbits of information
52 cells left to solve; 29 clues; 534 tidbits of information
46 cells left to solve; 35 clues; 554 tidbits of information
40 cells left to solve; 41 clues; 570 tidbits of information
36 cells left to solve; 45 clues; 583 tidbits of information
33 cells left to solve; 48 clues; 596 tidbits of information
29 cells left to solve; 52 clues; 611 tidbits of information
19 cells left to solve; 62 clues; 628 tidbits of information
14 cells left to solve; 67 clues; 637 tidbits of information
6 cells left to solve; 75 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#37 Done! (30 steps)
124597368369428517587361924293815746416273895875946132958632471631784259742159683
 
124|597|368
369|428|517
587|361|924
---+---+---
293|815|746
416|273|895
875|946|132
---+---+---
958|632|471
631|784|259
742|159|683
 
Puzzle #38 Solving 
1....6.8..64..........4...7....9.6...7.4..5..5...7.1...5....32.3....8...4........
 
1..|..6|.8.
.64|...|...
...|.4.|..7
---+---+---
...|.9.|6..
.7.|4..|5..
5..|.7.|1..
---+---+---
.5.|...|32.
3..|..8|...
4..|...|...
 
60 cells left to solve; 21 clues; 449 tidbits of information
56 cells left to solve; 25 clues; 469 tidbits of information
55 cells left to solve; 26 clues; 473 tidbits of information
54 cells left to solve; 27 clues; 476 tidbits of information
54 cells left to solve; 27 clues; 477 tidbits of information
54 cells left to solve; 27 clues; 478 tidbits of information
54 cells left to solve; 27 clues; 479 tidbits of information
54 cells left to solve; 27 clues; 480 tidbits of information
54 cells left to solve; 27 clues; 481 tidbits of information
54 cells left to solve; 27 clues; 484 tidbits of information
#38 M: strong incompatibility on 7 at cell r7c4 (involving nodes r1c4#7 chain 3(0) and r7c1#7 chain 3(1))
54 cells left to solve; 27 clues; 485 tidbits of information
54 cells left to solve; 27 clues; 486 tidbits of information
54 cells left to solve; 27 clues; 491 tidbits of information
53 cells left to solve; 28 clues; 497 tidbits of information
52 cells left to solve; 29 clues; 503 tidbits of information
#38 W: 9 in columns 1,7 form a 2x2 closed circuit  (X-Wing)
52 cells left to solve; 29 clues; 509 tidbits of information
50 cells left to solve; 31 clues; 527 tidbits of information
45 cells left to solve; 36 clues; 552 tidbits of information
38 cells left to solve; 43 clues; 575 tidbits of information
34 cells left to solve; 47 clues; 591 tidbits of information
31 cells left to solve; 50 clues; 604 tidbits of information
25 cells left to solve; 56 clues; 616 tidbits of information
18 cells left to solve; 63 clues; 633 tidbits of information
6 cells left to solve; 75 clues; 645 tidbits of information
1 cell left to solve; 80 clues; 648 tidbits of information
#38 Done! (25 steps)
137926485964587231825341967241895673673412598589673142758164329396258714412739856
 
137|926|485
964|587|231
825|341|967
---+---+---
241|895|673
673|412|598
589|673|142
---+---+---
758|164|329
396|258|714
412|739|856
 
Puzzle #39 Solving 
249.6...3.3....2..8.......5.....6......2......1..4.82..9.5..7....4.....1.7...3...
 
249|.6.|..3
.3.|...|2..
8..|...|..5
---+---+---
...|..6|...
...|2..|...
.1.|.4.|82.
---+---+---
.9.|5..|7..
..4|...|..1
.7.|..3|...
 
59 cells left to solve; 22 clues; 453 tidbits of information
56 cells left to solve; 25 clues; 474 tidbits of information
#39 W: 5 in rows 2,6 form a 2x2 closed circuit  (X-Wing)
56 cells left to solve; 25 clues; 481 tidbits of information
55 cells left to solve; 26 clues; 487 tidbits of information
53 cells left to solve; 28 clues; 493 tidbits of information
53 cells left to solve; 28 clues; 504 tidbits of information
#39 W: 2 in columns 3,9 form a 2x2 closed circuit  (X-Wing)
53 cells left to solve; 28 clues; 507 tidbits of information
#39 M:  weak 0/0 corner between linked 1/1 strong chains 2 and 7
#39 M:  weak 0/0 corner between linked 1/1 strong chains 2 and 8
#39 M:  weak 0/1 corner between linked 1/0 strong chains 3 and 21
#39 M:  weak 0/1 corner between linked 1/0 strong chains 6 and 9
53 cells left to solve; 28 clues; 511 tidbits of information
#39 P: Chain 1(1) may be eliminated.
53 cells left to solve; 28 clues; 513 tidbits of information
52 cells left to solve; 29 clues; 515 tidbits of information
#39 P: Chain 19(0) may be eliminated.
52 cells left to solve; 29 clues; 517 tidbits of information
51 cells left to solve; 30 clues; 520 tidbits of information
#39 P: Chain 21(1) may be eliminated.
51 cells left to solve; 30 clues; 521 tidbits of information
50 cells left to solve; 31 clues; 532 tidbits of information
50 cells left to solve; 31 clues; 539 tidbits of information
#39 M: strong incompatibility on 8 at cell r8c4 (involving nodes r7c6#8 chain 18(0) and r8c6#8 chain 18(1))
50 cells left to solve; 31 clues; 540 tidbits of information
#39 M: strong incompatibility on 8 at cell r8c5 (involving nodes r7c6#8 chain 18(0) and r8c6#8 chain 18(1))
50 cells left to solve; 31 clues; 541 tidbits of information
#39 M: strong incompatibility on 8 at cell r9c4 (involving nodes r1c4#8 chain 4(0) and r4c4#8 chain 4(1))
50 cells left to solve; 31 clues; 542 tidbits of information
#39 M: [chain 4(1)] can be eliminated due to conflicting weak link to [chain 13]
50 cells left to solve; 31 clues; 546 tidbits of information
46 cells left to solve; 35 clues; 557 tidbits of information
42 cells left to solve; 39 clues; 568 tidbits of information
36 cells left to solve; 45 clues; 582 tidbits of information
31 cells left to solve; 50 clues; 598 tidbits of information
28 cells left to solve; 53 clues; 609 tidbits of information
26 cells left to solve; 55 clues; 615 tidbits of information
23 cells left to solve; 58 clues; 621 tidbits of information
18 cells left to solve; 63 clues; 628 tidbits of information
13 cells left to solve; 68 clues; 638 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#39 Done! (29 steps)
249865173531974268867132495423786519986251347715349826692518734354627981178493652
 
249|865|173
531|974|268
867|132|495
---+---+---
423|786|519
986|251|347
715|349|826
---+---+---
692|518|734
354|627|981
178|493|652
 
Puzzle #40 Solving 
...8....9.873...4.6..7.......85..97...........43..75.......3....3...145.4....2..1
 
...|8..|..9
.87|3..|.4.
6..|7..|...
---+---+---
..8|5..|97.
...|...|...
.43|..7|5..
---+---+---
...|..3|...
.3.|..1|45.
4..|..2|..1
 
57 cells left to solve; 24 clues; 471 tidbits of information
54 cells left to solve; 27 clues; 489 tidbits of information
54 cells left to solve; 27 clues; 490 tidbits of information
54 cells left to solve; 27 clues; 491 tidbits of information
54 cells left to solve; 27 clues; 492 tidbits of information
54 cells left to solve; 27 clues; 494 tidbits of information
54 cells left to solve; 27 clues; 496 tidbits of information
54 cells left to solve; 27 clues; 498 tidbits of information
54 cells left to solve; 27 clues; 512 tidbits of information
53 cells left to solve; 28 clues; 512 tidbits of information
53 cells left to solve; 28 clues; 513 tidbits of information
53 cells left to solve; 28 clues; 514 tidbits of information
#40 M: strong incompatibility on 1 at cell r5c1 (involving nodes r4c1#1 chain 5(1) and r4c2#1 chain 5(0))
53 cells left to solve; 28 clues; 515 tidbits of information
#40 M: strong incompatibility on 1 at cell r5c2 (involving nodes r4c1#1 chain 5(1) and r4c2#1 chain 5(0))
53 cells left to solve; 28 clues; 516 tidbits of information
#40 M: strong incompatibility on 1 at cell r5c3 (involving nodes r4c1#1 chain 5(1) and r4c2#1 chain 5(0))
53 cells left to solve; 28 clues; 517 tidbits of information
#40 M: strong incompatibility on 1 at cell r6c1 (involving nodes r4c1#1 chain 5(1) and r4c2#1 chain 5(0))
53 cells left to solve; 28 clues; 518 tidbits of information
#40 M:  weak 1/1 corner between linked 0/0 strong chains 2 and 10
#40 M:  weak 0/0 corner between linked 1/1 strong chains 6 and 11
53 cells left to solve; 28 clues; 520 tidbits of information
#40 M:  weak 1/1 corner between linked 0/0 strong chains 3 and 19
53 cells left to solve; 28 clues; 521 tidbits of information
#40 P: Chain 8(0) may be eliminated.
53 cells left to solve; 28 clues; 523 tidbits of information
52 cells left to solve; 29 clues; 525 tidbits of information
#40 P: Chain 8(0) may be eliminated.
52 cells left to solve; 29 clues; 528 tidbits of information
50 cells left to solve; 31 clues; 532 tidbits of information
49 cells left to solve; 32 clues; 537 tidbits of information
48 cells left to solve; 33 clues; 541 tidbits of information
48 cells left to solve; 33 clues; 542 tidbits of information
48 cells left to solve; 33 clues; 543 tidbits of information
48 cells left to solve; 33 clues; 550 tidbits of information
48 cells left to solve; 33 clues; 552 tidbits of information
46 cells left to solve; 35 clues; 559 tidbits of information
46 cells left to solve; 35 clues; 563 tidbits of information
46 cells left to solve; 35 clues; 564 tidbits of information
46 cells left to solve; 35 clues; 569 tidbits of information
45 cells left to solve; 36 clues; 571 tidbits of information
#40 M: strong incompatibility on 6 at cell r6c8 (involving nodes r6c8#6 chain 4(1) and r1c8#6 chain 4(1))
45 cells left to solve; 36 clues; 580 tidbits of information
37 cells left to solve; 44 clues; 594 tidbits of information
31 cells left to solve; 50 clues; 610 tidbits of information
18 cells left to solve; 63 clues; 631 tidbits of information
10 cells left to solve; 71 clues; 643 tidbits of information
3 cells left to solve; 78 clues; 647 tidbits of information
#40 Done! (39 steps)
351846729287319645694725183168534972725198364943267518516483297832971456479652831
 
351|846|729
287|319|645
694|725|183
---+---+---
168|534|972
725|198|364
943|267|518
---+---+---
516|483|297
832|971|456
479|652|831
 
Puzzle #41 Solving 
...5.1....9....8...6.......4.1..........7..9........3.8.....1.5...2..4.....36....
 
...|5.1|...
.9.|...|8..
.6.|...|...
---+---+---
4.1|...|...
...|.7.|.9.
...|...|.3.
---+---+---
8..|...|1.5
...|2..|4..
...|36.|...
 
64 cells left to solve; 17 clues; 417 tidbits of information
62 cells left to solve; 19 clues; 433 tidbits of information
61 cells le