4
2
1
6
4
8
7
8
1
6
3
1
5
5
4
1
7
1
5
3
8
1
2
3
1
6
4
5
3
9
Time 00:00
Mistakes 0
Ready
Expert Sudoku #92
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 30 of 81 |
| Technique score | 41.8 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 2, 1 can only go in one cell, so it must go there.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.