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Goals & rules

Goal: Fill the 9×9 grid so each row, column, and 3×3 box contains the digits 1–9 exactly once. First to complete the puzzle wins.

Rules: Everyone gets the same puzzle. You can only enter 1–9 in empty cells. No repeats in any row, column, or 3×3 box.

How to play: Click a cell and type a number (1–9), or use the number keys. Delete or Backspace to clear. Complete all empty cells to finish.

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