4
7
3
2
9
5
4
1
6
4
4
3
5
6
8
2
8
2
3
1
1
8
7
8
9
4
5
6
Time 00:00
Mistakes 0
Ready
Easy Sudoku #105
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 28 of 81 |
| Technique score | 94.6 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 3, column 3 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.