4
3
8
9
5
4
1
3
8
1
6
5
8
6
1
7
8
3
5
9
3
9
4
7
8
6
3
5
2
9
7
6
1
3
7
2
Time 00:00
Mistakes 0
Ready
Easy Sudoku #202
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 36 of 81 |
| Technique score | 72 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 2, column 9 already sees all eight other digits in its row, column and box, so it can only be 7.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.