HoDoKu TechniquesSudoku Solving Techniques

A comprehensive bilingual guide to all HoDoKu solving techniques

Singles & Intersections

The fundamental building blocks — Full House, Hidden Single, Naked Single, and Locked Candidates

Hidden and Naked Pairs, Triples, and Quadruples — powerful pattern-based eliminations

From X-Wing to Mutant Whale — single-digit patterns using base and cover sets

Remote Pair, X-Chain, XY-Chain, Nice Loop, AIC — the most powerful and versatile techniques

Unique Rectangles, BUG, Avoidable Rectangle — leveraging the single-solution property

XY-Wing, XYZ-Wing, W-Wing, ALS-XZ, Death Blossom — advanced pattern techniques

Content based on HoDoKu by Bernhard Hobiger · Licensed under GNU FDLv1.3