8
7
3
6
9
7
4
8
1
6
7
4
4
6
3
3
5
7
9
6
8
3
5
1
4
5
9
1
Time 00:00
Mistakes 0
Ready
Easy Sudoku #209
Solvable by scanning alone — naked and hidden singles. A calm warm-up.
| Difficulty | Easy |
| Clues given | 28 of 81 |
| Technique score | 95.2 |
| Rated techniques | 3 |
Techniques this puzzle needs
Where to start
The first move on this board is a Naked Single: Row 6, column 4 already sees all eight other digits in its row, column and box, so it can only be 2.
Progress is saved in this browser automatically. Use the keyboard: arrows to move, 1–9 to fill, N for notes, H for a hint.