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9×9 Sudoku (Hard)
Expert-level 9×9 sudoku for advanced players only!
⏱ 00:00💡 Hints: 3❌ Mistakes: 0
8
3
6
7
9
2
6
5
3
4
3
3
1
6
6
8
9
1
6
4
8
Click a cell, then type a number or tap the keypad. Arrow keys to navigate.
How to Play
- • Click a cell to select it, then type a number or use the on-screen keypad.
- • Each row, column, and box must contain each digit exactly once.
- • Use Check to verify your answers. Errors are shown in red.
- • Use Hint (3 free hints) to reveal a single correct cell.
- • Arrow keys navigate between cells; Backspace clears a cell.