1
7
4
3
2
2
4
4
6
7
9
9
6
5
2
9
3
6
4
7
9
7
3
5
9
4
5
5
9
4
8
7
Time 00:00
Mistakes 0
Ready
Medium Sudoku #189
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 32 of 81 |
| Technique score | 87.8 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 7 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.