6
3
8
9
1
5
8
4
2
5
8
2
4
5
3
6
5
8
1
7
8
2
7
5
9
1
2
4
4
8
6
5
Time 00:00
Mistakes 0
Ready
Easy Sudoku #65
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 32 of 81 |
| Technique score | 79.1 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 7 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.