How to Play Sudoku: A Quick-Solve Guide from Easy to Hard
A complete sudoku guide: rules, elimination techniques, scanning strategies, and candidate notes to solve any difficulty faster.
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What is sudoku?
Sudoku is a 9x9 number puzzle: fill every row, column, and 3x3 box with digits 1-9 without repeats.
Quick-solve techniques
- Scan rows and columns for single missing numbers.
- Use elimination to narrow candidates per cell.
- Write pencil marks; find hidden singles.
- Spot naked pairs to rule out candidates.
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