2
5
8
3
8
4
7
1
6
2
1
3
7
9
3
4
8
6
5
7
9
1
2
8
8
2
7
5
Time 00:00
Mistakes 0
Ready
Easy Sudoku #51
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 28 of 81 |
| Technique score | 88 |
| Rated techniques | 2 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 6, column 2 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.