7
8
1
6
1
4
7
8
3
2
7
4
3
7
2
9
9
1
6
5
7
9
4
3
9
4
8
2
5
8
6
Time 00:00
Mistakes 0
Ready
Easy Sudoku #33
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 31 of 81 |
| Technique score | 82 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 2, column 1 already sees all eight other digits in its row, column and box, so it can only be 5.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.