Strategy1 min read
X-Wing and Swordfish, explained without the jargon
Two pattern-based Sudoku techniques that unstick expert grids — what they are, how to spot them, and when they are worth the effort.
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Sudoku Blog & Strategy Guides
Techniques, tips and puzzle theory — written for players who want to get faster.
Beginners1 min read
Pencil marks and naked pairs: your first real technique
When scanning runs out, notes take over. How to write candidates that actually help, and the pair pattern they exist to reveal.
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