9
5
8
2
1
7
9
3
6
4
9
1
6
5
9
9
3
6
7
7
5
4
1
2
8
3
5
7
Time 00:00
Mistakes 0
Ready
Medium Sudoku #169
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 28 of 81 |
| Technique score | 100.3 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 8, column 6 already sees all eight other digits in its row, column and box, so it can only 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.