3
4
7
8
2
6
5
2
8
1
5
9
8
5
6
2
3
8
6
7
8
1
9
8
2
7
4
1
2
7
5
8
Time 00:00
Mistakes 0
Ready
Expert Sudoku #71
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 32 of 81 |
| Technique score | 60.6 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 7, column 8 already sees all eight other digits in its row, column and box, so it can only be 3.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.