Daily Killer Sudoku September 15, 2026
The same puzzle everyone got on September 15, 2026 — deterministic, graded, and still playable.
| 4 | 13 | 7 | 22 | 5 | 9 | |||
| 15 | 16 | |||||||
| 125 | 21 | 6 | 11 | 22 | ||||
| 9 | 17 | 11 | ||||||
| 22 | 8 | 13 | ||||||
| 18 | 17 | 17 | 26 | |||||
| 12 | 19 | |||||||
| 16 | 6 | 13 | 7 | 11 | ||||
What it takes to solve
Our grader solved this puzzle in 136 steps. Every technique it needed, in ladder order:
- Naked single× 53
- Hidden single× 27
- Naked pair× 4
- Cage combinations× 52
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 15, 2026: the daily classic. Or jump to today's killer daily.