8
7
6
2
9
4
7
3
5
3
9
4
7
7
1
5
9
4
5
1
2
1
9
4
5
8
Time 00:00
Mistakes 0
Ready
Medium Sudoku #187
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 26 of 81 |
| Technique score | 104 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 4, 5 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.