2
7
5
1
4
6
8
9
5
2
1
7
9
6
8
4
5
1
1
5
8
6
1
5
1
9
4
6
9
3
1
Time 00:00
Mistakes 0
Ready
Easy Sudoku #151
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 31 of 81 |
| Technique score | 82.9 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 5, column 2 already sees all eight other digits in its row, column and box, so it can only be 9.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.