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Sudoku
Race online →Generating puzzle…
How to play
- 1Fill every row, every column, and each 3×3 box with 1–9 - no repeats.
- 2Tap a cell, then a number. Erase clears it; Undo steps back.
- 3Notes adds pencil marks; Auto-candidates fills the legal options for you.
- 4Hint reveals the next logical step. Daily is one shared puzzle a day - build a streak!