5
9
2
4
2
9
5
4
1
6
4
5
9
1
2
4
3
7
4
7
6
7
5
3
2
6
1
9
Time 00:00
Mistakes 0
Ready
Easy Sudoku #233
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 28 of 81 |
| Technique score | 97.6 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 3, 5 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.