6
1
5
4
6
8
4
9
1
4
6
2
4
1
5
5
6
2
8
2
5
2
1
9
7
7
9
Time 00:00
Mistakes 0
Ready
Expert Sudoku #61
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 27 of 81 |
| Technique score | 39.3 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 2, 2 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.