5
8
3
6
4
3
7
6
5
8
7
3
1
9
3
1
8
4
2
5
4
8
9
8
5
2
4
Time 00:00
Mistakes 0
Ready
Medium Sudoku #142
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 27 of 81 |
| Technique score | 108.3 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 2, column 2 already sees all eight other digits in its row, column and box, so it can only be 7.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.