6
4
9
7
6
1
2
6
5
4
4
6
5
1
8
9
2
6
3
4
1
8
1
9
8
7
6
7
5
1
2
9
Time 00:00
Mistakes 0
Ready
Expert Sudoku #46
XY-Wings, forced chains and positions that punish impatience.
| Difficulty | Expert |
| Clues given | 32 of 81 |
| Technique score | 47.4 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Full House: Row 5, column 5 is the last empty cell in its box 5, so it must be 7.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.