8
5
4
8
3
1
5
3
4
7
8
2
6
8
7
9
2
3
3
9
7
8
3
7
4
4
9
1
8
3
9
6
Time 00:00
Mistakes 0
Ready
Easy Sudoku #66
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 32 of 81 |
| Technique score | 85.1 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 1, 3 can only go in one cell, so it must go there.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.