3
9
6
8
8
9
7
6
6
4
1
7
5
8
5
3
2
4
4
7
9
8
2
5
4
3
Time 00:00
Mistakes 0
Ready
Medium Sudoku #140
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 26 of 81 |
| Technique score | 98.9 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 5, column 4 already sees all eight other digits in its row, column and box, so it can only be 8.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.