🧠 Sudoku
Fill the 9×9 grid — every row, column, and box contains 1–9.
操作方法：Click cell, then click number pad or keyboard 1-9
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📖 遊び方
- 1Click any empty cell to select it, then enter a number (1-9) using the number pad or keyboard.
- 2Every row, column, and 3x3 box must contain digits 1-9 exactly once.
- 3Use Notes mode to pencil in possible candidates for each cell.
- 4Use Auto Notes to automatically fill all possible candidates at once.
- 5Use Hints (3 available) to reveal the correct number for a selected cell.
- 6Press Delete/Backspace to erase a number. Wrong answers are highlighted in red.
- 7Three difficulty levels: Easy (30 blanks), Medium (45), Hard (55).
ゲーム紹介 Sudoku
Fill every row, column, and 3×3 box with digits 1–9 exactly once. Three difficulty levels, note mode, 3 hints, and a built-in timer.
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