1
7
3
5
8
1
7
4
9
1
2
5
1
9
2
7
6
4
2
9
7
3
1
6
5
2
3
6
Time 00:00
Mistakes 0
Ready
Expert Sudoku #124
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 28 of 81 |
| Technique score | 49 |
| Rated techniques | 6 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 4 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.