6
3
1
7
8
7
4
5
3
1
2
8
7
2
4
5
9
9
7
2
8
6
3
6
2
8
7
4
6
Time 00:00
Mistakes 0
Ready
Expert Sudoku #68
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 29 of 81 |
| Technique score | 54.8 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 2, column 4 already sees all eight other digits in its row, column and box, so it can only be 2.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.