9
5
8
2
3
7
4
8
2
3
4
6
8
3
6
9
5
1
3
9
1
4
6
5
7
Time 00:00
Mistakes 0
Ready
Medium Sudoku #218
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 25 of 81 |
| Technique score | 100.9 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this column 5, 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.