9
4
8
1
5
2
4
8
8
3
1
2
6
9
3
3
4
3
5
9
1
2
1
7
8
3
1
4
2
2
1
8
Time 00:00
Mistakes 0
Ready
Easy Sudoku #86
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 32 of 81 |
| Technique score | 79.7 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 4, column 4 already sees all eight other digits in its row, column and box, so it can only be 7.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.