2
6
7
4
2
9
1
7
5
9
9
5
2
8
2
4
3
6
8
1
6
7
6
2
4
8
5
Time 00:00
Mistakes 0
Ready
Expert Sudoku #120
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 27 of 81 |
| Technique score | 45.5 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 7, column 4 already sees all eight other digits in its row, column and box, so it can only be 9.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.