5
9
6
3
7
9
8
3
5
1
4
9
8
9
4
2
1
8
3
4
4
1
6
8
7
4
9
3
5
3
8
2
Time 00:00
Mistakes 0
Ready
Easy Sudoku #143
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 32 of 81 |
| Technique score | 80 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 1, column 1 already sees all eight other digits in its row, column and box, so it can only be 2.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.