4
1
9
7
5
3
8
7
1
5
5
2
8
9
1
4
3
6
9
5
6
4
1
4
8
Time 00:00
Mistakes 0
Ready
Medium Sudoku #2
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 25 of 81 |
| Technique score | 112.3 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 4, 4 can only go in one cell, so it must go there.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.