Verified daily Sudoku challenge
Daily Sudoku for August 15, 2026
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Available through: August 15, 2026
Four verified puzzles
Easy
| | | | | | | 6 | 3 | |
| 2 | | 7 | 4 | | 6 | 1 | | |
| | 6 | | | 2 | 9 | | | |
| 6 | | | | | | | | |
| | | 5 | | 3 | | | 8 | 1 |
| 3 | | 2 | | 4 | 5 | | 6 | |
| | | | | | | | 9 | |
| | | | | | 7 | | | 5 |
| 8 | | | 5 | 9 | | | | |
- Puzzle ID
LDI0-3a910082f88d17d87cf307a4d85c104ed542f2f2- Clue count
- 26
- Unique solution
- Verified
- LDI v0 score
- 11
- Tier
- Easy
- Hardest technique
- Hidden Single
- Logical steps
- 55
Verified key step: Naked Single: place 5 at row 2, column 8.
Medium
| | 1 | 6 | | 3 | 7 | | | |
| | | | 9 | | | | | |
| | | 4 | 2 | | | 6 | | |
| | 6 | 5 | | | | | | 4 |
| | 4 | | 7 | 1 | 9 | | 6 | |
| 7 | | | | | | 9 | 3 | |
| | | 9 | | | 5 | 4 | | |
| | | | | | 2 | | | |
| | | | 4 | 7 | | 2 | 9 | |
- Puzzle ID
LDI0-5d6918203a736b71cf9dcbe654ce1fd91f8ea334- Clue count
- 27
- Unique solution
- Verified
- LDI v0 score
- 16
- Tier
- Medium
- Hardest technique
- Hidden Single
- Logical steps
- 54
Verified key step: Hidden Single: place 4 at row 1, column 8.
Hard
| | | | | | | 5 | | |
| | 5 | 6 | 2 | | 7 | | | |
| | | | | 5 | | | 1 | 4 |
| | 6 | | 4 | 3 | | | 2 | 5 |
| | | | | 1 | | | 4 | |
| | | 8 | | | | | | |
| | | | | 7 | 1 | 4 | | |
| | 3 | | | | | 2 | | |
| 6 | 7 | | | | | | | 8 |
- Puzzle ID
LDI0-3a20868406219f831d113f556ba351947ddcc369- Clue count
- 24
- Unique solution
- Verified
- LDI v0 score
- 31
- Tier
- Hard
- Hardest technique
- Hidden Single
- Logical steps
- 57
Verified key step: Hidden Single: place 1 at row 2, column 1.
Expert
| | 8 | 2 | 7 | 3 | | | | |
| 3 | | 1 | | | | | | |
| | 6 | | | | | 2 | | 8 |
| 4 | 3 | | | 7 | 6 | | | 5 |
| | | | | | | | | |
| | | | 3 | 2 | | | | |
| 9 | | | | | | | | 7 |
| | 1 | | | 5 | 9 | | | |
| | | | | 4 | | 9 | 5 | |
- Puzzle ID
LDI0-4655ff4bcd27d4071a0d50b3668abbf9ea0a6123- Clue count
- 24
- Unique solution
- Verified
- LDI v0 score
- 40
- Tier
- Expert
- Hardest technique
- Locked Candidates
- Logical steps
- 59
Verified key step: Naked Single: place 5 at row 1, column 1.
2026-08-15 · LDI v0
Play this dated challenge
LDI v0
Verified puzzle facts
- Puzzle ID
LDI0-3a910082f88d17d87cf307a4d85c104ed542f2f2- LDI score (0–100)
- 11
- Clue count
- 26
- Logical steps
- 55
- Hardest technique
- Hidden Single
Clue count is a board fact, not the difficulty verdict. The tier comes from this published LDI version.