Daily Killer Sudoku August 18, 2026
The same puzzle everyone got on August 18, 2026 — deterministic, graded, and still playable.
| 16 | 5 | 16 | 9 | 10 | 6 | 4 | 21 | |
| 23 | 8 | 2 | ||||||
| 14 | 16 | 18 | ||||||
| 15 | 15 | 2 | ||||||
| 11 | 7 | 15 | 128 | 12 | 17 | |||
| 15 | 11 | |||||||
| 15 | 15 | 15 | ||||||
| 15 | 6 | 117 | 9 | |||||
| 7 | 13 | 8 |
What it takes to solve
Our grader solved this puzzle in 128 steps. Every technique it needed, in ladder order:
- Naked single× 61
- Hidden single× 17
- Naked pair× 3
- Cage combinations× 47
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 August 18, 2026: the daily classic. Or jump to today's killer daily.