4
7
1
5
3
9
2
3
8
6
7
2
4
9
6
5
3
7
5
4
9
3
5
1
Time 00:00
Mistakes 0
Ready
Expert Sudoku #196
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 24 of 81 |
| Technique score | 41 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 1, 3 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.