Daily Killer Sudoku September 10, 2026
The same puzzle everyone got on September 10, 2026 — deterministic, graded, and still playable.
| 168 | 12 | 15 | 25 | |||||
| 9 | 10 | 6 | 9 | |||||
| 18 | 15 | 23 | 14 | |||||
| 18 | 12 | |||||||
| 12 | 5 | 6 | 18 | |||||
| 8 | 22 | 20 | 12 | |||||
| 8 | 7 | 2 | 13 | 24 | 3 | |||
| 18 | 15 | 15 | 11 | |||||
What it takes to solve
Our grader solved this puzzle in 154 steps. Every technique it needed, in ladder order:
- Naked single× 63
- Hidden single× 14
- Naked pair× 7
- Hidden pair× 2
- Pointing pair× 4
- Cage combinations× 61
- Swordfish× 1
- Coloring× 1
- Forcing chain× 1
Difficulty on Stillgrid is graded by the hardest technique a puzzle actually requires — this one earns Nightmare. How the technique ladder works.
Stuck on a cage? The killer sudoku calculator lists every combination a sum can take.
Also on September 10, 2026: the daily classic.