7
9
4
3
8
6
4
2
7
5
3
5
1
8
3
7
6
8
1
7
2
4
6
4
3
9
2
5
Time 00:00
Mistakes 0
Ready
Medium Sudoku #134
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 28 of 81 |
| Technique score | 103.6 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 5, column 3 already sees all eight other digits in its row, column and box, so it can only be 9.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.