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SudoKoach Solving Strategies

Currently, SudoKoach supports 43 different solving strategies. They are broken down into categories by their difficulty.

Basic:

• Naked Singles
• Hidden Singles

Intermediate:

• Box/line Elimination
• Line/box Elimination
• Naked Pairs
• Naked Triples
• Hidden Pairs
• Hidden Triples
• X-Wing
• XY-Wing
• Finned X-Wing
• Sashimi Finned X-Wing
• W-Wing (type 1-4)
• BUG (Bi-value Universal Grave)
• Rectangle Elimination

Advanced:

• Locked Cell Cycle (type 1)
• Locked Cell Cycle (type 2)
• XYZ-Wing
• Swordfish
• Naked Quad
• Hidden Quad
• Jellyfish
• Unique Rectangle (type 1-6)
• Avoidable Rectangle (type 1-3)
• XY-Wing Chain
• Singles Chain
• Singles Chain Contradiction
• Pairs Chain
• Pairs Chain Contradiction
• Weak Singles Chain
• Weak Singles Chain Contradiction

Superhuman:

• Composite Chain
• Composite Chain Contradiction