8
7
5
7
9
2
3
2
4
6
3
9
4
6
3
5
2
8
1
9
8
3
8
2
1
5
5
8
Time 00:00
Mistakes 0
Ready
Easy Sudoku #17
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 28 of 81 |
| Technique score | 99.4 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 3, column 7 already sees all eight other digits in its row, column and box, so it can only be 5.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.