Daily Killer Sudoku September 25, 2026
The same puzzle everyone got on September 25, 2026 — deterministic, graded, and still playable.
| 10 | 9 | 17 | 15 | 16 | 1 | |||
| 16 | 15 | 8 | 11 | |||||
| 7 | 16 | 10 | ||||||
| 15 | 14 | 17 | 18 | 16 | ||||
| 8 | 13 | |||||||
| 7 | 14 | 7 | 1 | 12 | ||||
| 20 | 1 | 14 | 18 | |||||
| 15 | 13 | 15 | ||||||
| 16 | 9 |
What it takes to solve
Our grader solved this puzzle in 157 steps. Every technique it needed, in ladder order:
- Naked single× 47
- Hidden single× 32
- Naked pair× 8
- Cage combinations× 70
Difficulty on Stillgrid is graded by the hardest technique a puzzle actually requires — this one earns Medium. How the technique ladder works.
Stuck on a cage? The killer sudoku calculator lists every combination a sum can take.
Also on September 25, 2026: the daily classic.