5
7
2
6
1
5
4
5
3
7
8
9
4
7
4
1
3
6
4
5
8
5
8
1
3
1
Time 00:00
Mistakes 0
Ready
Expert Sudoku #203
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 26 of 81 |
| Technique score | 64.9 |
| Rated techniques | 6 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 4, column 6 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.