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Game
Wiki
- Diagonal Sudoku and Other Extra-Rule Variants
- Giant and Mini Sudoku: Every Grid Size Explained
- History of Sudoku: Who Invented It and When
- How to Play 16x16 Sudoku
- How to Play Killer Sudoku: Cages, Sums, 45 Rule
- How to Play Sudoku: Rules and Your First Move
Sudoku Strategies: Every Technique in Order
Basic Strategies
8 techniquesTough Strategies
15 techniques- X-Wing Sudoku Technique
- Chute Remote Pairs
- Y-Wing (XY-Wing) Sudoku Technique
- W-Wing Sudoku Technique
- Empty Rectangle (Rectangle Elimination)
- Cage Splitting in Killer Sudoku
- Multi-Cell Innies and Outies
- Cage and Unit Overlap
- Hard Killer Sudoku Combinations
- Rule of Parity in Killer Sudoku
- Cage Compare in Killer Sudoku
- Simple Colouring
- Naked and Hidden Quads
- Swordfish Sudoku Technique
- XYZ-Wing Sudoku Technique