8
3
5
4
1
6
5
5
9
8
5
4
2
1
3
7
3
9
7
4
4
1
3
6
2
9
7
Time 00:00
Mistakes 0
Ready
Medium Sudoku #29
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 27 of 81 |
| Technique score | 104.1 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 6 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.