Medium
Daily challenge · 2026-09-05
Puzzle
2
9
5
1
3
5
4
1
4
2
6
5
8
7
3
7
6
8
7
4
1
9
8
9
1
2
5
1
7
2
3
Logic required
Singles
Hardest technique: Hidden Single
Solution
Solve the puzzle to reveal the solution.