2
9
4
5
3
9
4
8
4
6
1
9
6
1
8
9
3
5
7
3
4
7
3
8
2
9
4
7
9
Time 00:00
Mistakes 0
Ready
Medium Sudoku #137
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 29 of 81 |
| Technique score | 139.7 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 5 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.