Daily Sudoku Challenge — 2026-06-15 (Casual) — Level 9
A fresh, hand-tuned Sudoku awaits. Today's grid balances logic and intuition — perfect to sharpen your mind in under 15 minutes.
| 6 | · | 1 | · | · | · | 8 | 5 | · |
| · | · | · | 4 | 5 | · | · | · | · |
| · | · | 5 | · | · | · | 2 | · | · |
| · | · | · | · | · | · | 1 | 7 | · |
| 2 | · | · | · | 6 | · | · | · | · |
| 9 | · | · | · | 7 | · | · | 8 | · |
| · | 6 | · | · | 9 | 1 | · | 2 | · |
| · | · | · | 3 | · | 6 | · | · | · |
| 1 | · | · | · | 8 | 4 | 3 | · | · |
Solving tips
- When stuck, restart your scan from the digit with fewest candidates.
- Scan rows, columns, and boxes for the most-frequent digit first.
- Pencil-mark candidates only when single-cell scanning stalls.