Daily Killer Sudoku October 7, 2026
The same puzzle everyone got on October 7, 2026 — deterministic, graded, and still playable.
| 13 | 4 | 15 | 18 | |||||
| 9 | 11 | 10 | 8 | 9 | ||||
| 20 | 12 | 18 | ||||||
| 27 | 13 | 17 | 8 | |||||
| 18 | 8 | 16 | 11 | 9 | ||||
| 9 | 8 | |||||||
| 12 | 7 | 6 | 5 | 23 | ||||
| 3 | 18 | 23 | 15 | |||||
| 2 |
What it takes to solve
Our grader solved this puzzle in 154 steps. Every technique it needed, in ladder order:
- Naked single× 52
- Hidden single× 29
- Naked pair× 2
- Hidden pair× 1
- 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 October 7, 2026: the daily classic.