8
5
5
4
6
8
4
8
7
6
3
5
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6
1
3
7
9
9
5
4
3
9
7
8
6
8
4
6
1
5
8
Time 00:00
Mistakes 0
Ready
Expert Sudoku #195
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 32 of 81 |
| Technique score | 57.3 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 5, column 5 already sees all eight other digits in its row, column and box, so it can only be 2.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.