5
8
9
6
9
5
8
8
7
6
7
9
4
2
1
4
9
1
6
9
3
4
3
5
9
9
2
1
4
4
8
3
Time 00:00
Mistakes 0
Ready
Expert Sudoku #117
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 32 of 81 |
| Technique score | 52.6 |
| Rated techniques | 6 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 9, column 6 already sees all eight other digits in its row, column and box, so it can only be 6.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.