8
2
4
3
9
7
5
1
2
7
9
6
2
9
5
2
6
8
1
7
2
9
7
4
8
6
1
3
Time 00:00
Mistakes 0
Ready
Expert Sudoku #3
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 28 of 81 |
| Technique score | 59.1 |
| Rated techniques | 4 |
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 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.