7
3
1
4
6
3
2
4
6
1
2
3
4
7
5
8
6
2
9
7
3
2
8
1
3
6
5
2
9
Time 00:00
Mistakes 0
Ready
Easy Sudoku #204
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 29 of 81 |
| Technique score | 85.1 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 5, column 1 already sees all eight other digits in its row, column and box, so it can only be 9.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.