8
9
5
1
2
6
7
8
1
4
5
6
7
9
7
8
2
3
5
7
9
6
6
5
4
9
Time 00:00
Mistakes 0
Ready
Expert Sudoku #202
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 26 of 81 |
| Technique score | 41.2 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 7, column 6 already sees all eight other digits in its row, column and box, so it can only be 1.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.