Verified daily Sudoku challenge
Daily Sudoku for August 13, 2026
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Available through: August 15, 2026
Four verified puzzles
Easy
| | 7 | | | | | | | 1 |
| | | 3 | | | | | 2 | |
| 4 | | | | | 9 | | | 3 |
| | | | | | | | | |
| | 3 | 2 | | 1 | 6 | 8 | | |
| 5 | | 6 | | 7 | | | | |
| | 8 | | | | | | | |
| 6 | | | 5 | | | 4 | | 7 |
| 9 | | | | | | 6 | 8 | |
- Puzzle ID
LDI0-3496c8d678fc3965943e4f182587e4adc41d32a2- Clue count
- 23
- Unique solution
- Verified
- LDI v0 score
- 14
- Tier
- Easy
- Hardest technique
- Hidden Single
- Logical steps
- 58
Verified key step: Naked Single: place 7 at row 5, column 1.
Medium
| | 4 | | | | 9 | | 1 | 2 |
| 9 | | 3 | | | | 4 | | |
| | | 8 | | 2 | 4 | | 6 | |
| | 8 | | 7 | | | | 3 | |
| | | 6 | | | 5 | 1 | | |
| | | 2 | | 6 | | | 5 | |
| | 1 | | | 9 | 6 | | | |
| | | | | 8 | | | | |
| 3 | | | | | | | | |
- Puzzle ID
LDI0-5aca670aedfc60ff01bb14787bf556dfbf614c2b- Clue count
- 25
- Unique solution
- Verified
- LDI v0 score
- 16
- Tier
- Medium
- Hardest technique
- Hidden Single
- Logical steps
- 56
Verified key step: Hidden Single: place 2 at row 2, column 2.
Hard
| | | 1 | | | | | 2 | 8 |
| | 6 | 8 | | | | | | |
| | | | 4 | | | 3 | | |
| | | | 6 | 3 | | | | |
| | | | | | 7 | | 4 | 1 |
| 5 | | | | | 4 | 8 | | |
| 8 | 1 | | 3 | | | | | 2 |
| | 7 | 9 | 2 | | | | | |
| | 2 | | | | | 6 | | 9 |
- Puzzle ID
LDI0-38490437b37b469e99f96b1b7d73e6fa8d980ab0- Clue count
- 25
- Unique solution
- Verified
- LDI v0 score
- 33
- Tier
- Hard
- Hardest technique
- Locked Candidates
- Logical steps
- 59
Verified key step: Hidden Single: place 1 at row 4, column 1.
Expert
| | | | | 7 | | 5 | 3 | |
| 8 | | | 3 | | | 9 | | 1 |
| | | | | | | | 8 | |
| | | 8 | 1 | | | | 6 | 7 |
| 1 | | | 6 | | 2 | | | 3 |
| 3 | 2 | | | | 7 | 4 | | |
| | 5 | | | | | | | |
| 9 | | 3 | | | 5 | | | 8 |
| | 8 | 1 | | 4 | | | | |
- Puzzle ID
LDI0-a22cfaae2f293ef1cc2f10a342d19b47cb8f5759- Clue count
- 28
- Unique solution
- Verified
- LDI v0 score
- 100
- Tier
- Expert
- Hardest technique
- Swordfish
- Logical steps
- 59
Verified key step: Naked Single: place 2 at row 4, column 7.
2026-08-13 · LDI v0
Play this dated challenge
LDI v0
Verified puzzle facts
- Puzzle ID
LDI0-3496c8d678fc3965943e4f182587e4adc41d32a2- LDI score (0–100)
- 14
- Clue count
- 23
- Logical steps
- 58
- Hardest technique
- Hidden Single
Clue count is a board fact, not the difficulty verdict. The tier comes from this published LDI version.