8
1
3
3
7
2
9
8
8
5
4
8
7
1
5
1
3
8
9
7
4
6
6
3
7
8
9
2
3
3
4
9
Time 00:00
Mistakes 0
Ready
Expert Sudoku #94
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 32 of 81 |
| Technique score | 98.5 |
| Rated techniques | 8 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, 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.