-- 10000 Method Examples
This site gives over 10000 Sudoku examples, illustrating a wide variety of methods. Select a method code to see the examples, then click on its link to load a puzzle into Sudoku Assistant. Or click on the method's name to see an explanation.
singly-linked almost-locked sets
doubly-linked almost-locked sets
grid-based almost-locked sets(sashimi)
strong 3D Medusa chains
weakly linked 3D Medusa chains
3D Medusa with almost-locked sets
Hypothesis and Proof
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Sh4 r2c1 ISN'T 8: 4-long hidden set in column 1 involving rows 2,4,7,8 r7c1r8c1r2c1r7c1r8c1r4c1r7c1r8c1r2c1 r7c1#1r8c1#1r2c1#3r7c1#3r8c1#3r4c1#4r7c1#4r8c1#4r2c1#8 Sh4 r4c1r7c1r8c1r7c1r8c1r2c1r8c1r2c1r4c1