8
2
3
7
1
7
8
2
1
3
4
9
2
8
9
4
5
5
3
6
8
9
5
4
7
6
5
9
4
Time 00:00
Mistakes 0
Ready
Medium Sudoku #160
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 29 of 81 |
| Technique score | 99.8 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 6, column 5 already sees all eight other digits in its row, column and box, so it can only be 2.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.