9
8
5
9
3
7
1
7
4
2
5
6
1
3
4
9
7
2
7
3
5
7
8
4
2
6
4
Time 00:00
Mistakes 0
Ready
Expert Sudoku #134
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 27 of 81 |
| Technique score | 63.7 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 2 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.