4
5
1
6
8
3
2
8
9
6
8
1
6
6
4
5
8
2
8
5
6
1
7
4
9
5
3
2
Time 00:00
Mistakes 0
Ready
Easy Sudoku #230
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 28 of 81 |
| Technique score | 93.7 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Hidden Single: In this row 1, 6 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.