2
1
5
9
7
4
2
5
5
6
1
2
4
9
3
6
9
1
4
2
4
1
9
1
8
1
9
4
3
6
Time 00:00
Mistakes 0
Ready
Easy Sudoku #133
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 30 of 81 |
| Technique score | 90.9 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 1, 4 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.