Daily Sudoku Challenge — 2026-06-04 (Expert) — Level 4
Warm up with the daily grid. Logic-only — no guessing required, just patience and pattern recognition.
| · | · | 8 | 1 | · | 9 | · | · | · |
| · | 6 | 2 | · | 4 | 3 | · | · | · |
| 5 | 3 | 9 | 8 | · | · | 4 | 1 | 7 |
| 8 | · | · | 9 | 1 | · | · | · | 4 |
| · | 4 | 1 | · | · | · | · | 7 | 3 |
| 6 | 2 | · | 3 | 8 | · | · | 5 | · |
| · | 1 | 6 | 4 | 7 | · | 3 | · | 9 |
| · | · | · | · | 9 | · | · | 4 | · |
| 7 | · | · | · | 3 | 8 | 1 | 2 | 5 |
Solving tips
- Pencil-mark candidates only when single-cell scanning stalls.
- Look for naked pairs in tight rows to eliminate options elsewhere.
- Hidden singles often hide inside 3×3 boxes — check them last.