9
5
1
3
9
4
4
3
5
3
4
6
1
8
6
1
3
8
2
7
3
8
1
9
3
5
4
6
Time 00:00
Mistakes 0
Ready
Medium Sudoku #79
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 28 of 81 |
| Technique score | 98.5 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 6, column 4 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.