8
6
3
5
3
9
5
4
2
1
8
5
7
4
3
2
5
8
6
2
2
5
9
1
3
2
4
7
Time 00:00
Mistakes 0
Ready
Medium Sudoku #117
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 28 of 81 |
| Technique score | 103 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 9, column 9 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.