2
9
1
4
7
3
3
4
5
8
4
6
2
7
3
5
7
8
9
2
6
3
9
1
3
2
Time 00:00
Mistakes 0
Ready
Medium Sudoku #143
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 26 of 81 |
| Technique score | 101.3 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 8 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.