9
8
3
3
4
7
6
3
9
4
1
5
6
3
5
2
9
1
8
5
9
2
3
4
8
4
8
1
Time 00:00
Mistakes 0
Ready
Medium Sudoku #77
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 28 of 81 |
| Technique score | 98.5 |
| Rated techniques | 4 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 1, 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.