3
6
2
2
1
3
9
4
5
6
3
9
8
1
4
2
6
8
2
4
1
1
5
8
9
3
2
8
7
3
1
Time 00:00
Mistakes 0
Ready
Expert Sudoku #141
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 31 of 81 |
| Technique score | 51.7 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 6, column 5 already sees all eight other digits in its row, column and box, so it can only be 7.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.