Daily Killer Sudoku September 28, 2026
The same puzzle everyone got on September 28, 2026 — deterministic, graded, and still playable.
| 15 | 5 | 22 | 6 | 20 | ||||
| 9 | 12 | 20 | ||||||
| 20 | 7 | 13 | ||||||
| 12 | 19 | 8 | 17 | |||||
| 4 | 18 | |||||||
| 9 | 11 | 16 | 7 | |||||
| 9 | 4 | 14 | 6 | 14 | 3 | |||
| 19 | 11 | 18 | 15 | 14 | ||||
| 8 |
What it takes to solve
Our grader solved this puzzle in 142 steps. Every technique it needed, in ladder order:
- Naked single× 52
- Hidden single× 29
- Naked pair× 1
- Cage combinations× 60
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 28, 2026: the daily classic.