2
7
4
9
3
6
3
1
9
6
3
4
5
1
7
5
3
8
3
9
5
2
6
6
8
5
1
9
9
8
7
9
1
4
8
5
Time 00:00
Mistakes 0
Ready
Easy Sudoku #159
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 1, column 3 already sees all eight other digits in its row, column and box, so it can only be 1.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.