2
7
3
8
1
9
3
7
2
8
2
1
4
6
7
5
5
6
2
5
4
8
6
2
9
5
6
8
3
Time 00:00
Mistakes 0
Ready
Medium Sudoku #133
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 29 of 81 |
| Technique score | 105.5 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 2, column 5 already sees all eight other digits in its row, column and box, so it can only be 4.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.