8
5
3
9
3
8
1
1
4
2
4
1
7
7
3
5
8
2
3
4
8
5
7
4
7
3
2
1
Time 00:00
Mistakes 0
Ready
Expert Sudoku #229
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 28 of 81 |
| Technique score | 60.2 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 1, 1 can only go in one cell, so it must go there.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.