Daily Killer Sudoku July 23, 2026
The same puzzle everyone got on July 23, 2026 — deterministic, graded, and still playable.
| 91 | 15 | 3 | 21 | 5 | 15 | |||
| 17 | 18 | 11 | 13 | |||||
| 4 | 7 | 5 | 3 | |||||
| 17 | 1 | 12 | 17 | 3 | ||||
| 11 | 11 | 3 | 13 | |||||
| 179 | 15 | 17 | 7 | 5 | ||||
| 7 | 209 | 18 | ||||||
| 13 | 23 | 7 | ||||||
| 6 | 16 |
What it takes to solve
Our grader solved this puzzle in 144 steps. Every technique it needed, in ladder order:
- Naked single× 56
- Hidden single× 22
- Cage combinations× 66
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 July 23, 2026: the daily classic.