Daily Killer Sudoku May 10, 2026
The same puzzle everyone got on May 10, 2026 — deterministic, graded, and still playable.
| 15 | 16 | 6 | 21 | |||||
| 5 | 9 | 23 | 10 | |||||
| 21 | 14 | 10 | 25 | 10 | ||||
| 9 | ||||||||
| 14 | 11 | 9 | 12 | |||||
| 6 | 19 | 14 | ||||||
| 4 | 11 | 15 | 20 | |||||
| 17 | 11 | 14 | 13 | |||||
| 15 | 3 | 3 |
What it takes to solve
Our grader solved this puzzle in 146 steps. Every technique it needed, in ladder order:
- Naked single× 53
- Hidden single× 28
- Naked pair× 4
- Cage combinations× 61
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 May 10, 2026: the daily classic. Or jump to today's killer daily.