4
7
8
3
5
3
8
4
2
6
8
3
9
5
1
3
8
6
9
5
2
9
8
1
6
3
8
5
6
1
2
2
9
1
5
3
4
9
2
6
Time 00:00
Mistakes 0
Ready
Easy Sudoku #154
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 40 of 81 |
| Technique score | 63.1 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 2, column 6 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.