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Friday, January 05, 2007

Advanced Sudoku Solving Strategies

Singles Chains a.k.a Simple Colouring

Multi-Colouring

Y-Wing a.k.a XY-Wing

Y-Wing Chain

XY-Chains

XYZ-Wing

WXYZ-Wing

Aligned Pair Exclusion

Remote Pairs

Unique Rectangles

Guardian/Broken Wings

Death Blossom
Abhijeet at 2:00 AM
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