6
9
9
3
1
7
2
4
7
8
5
2
6
2
1
2
5
4
8
3
9
4
6
9
1
9
4
Time 00:00
Mistakes 0
Ready
Medium Sudoku #1
You will want pencil marks: locked candidates, pairs and triples.
| Difficulty | Medium |
| Clues given | 27 of 81 |
| Technique score | 177.3 |
| Rated techniques | 5 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 4, column 8 already sees all eight other digits in its row, column and box, so it can only be 6.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.