3
4
5
7
9
6
3
5
4
7
9
5
2
1
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8
5
5
1
6
3
4
1
3
6
5
9
1
3
8
4
1
Time 00:00
Mistakes 0
Ready
Expert Sudoku #123
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 32 of 81 |
| Technique score | 35.4 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 3, column 6 already sees all eight other digits in its row, column and box, so it can only be 8.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.