Verified daily Sudoku challenge
Daily Sudoku for July 25, 2026
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Available through: August 15, 2026
Four verified puzzles
Easy
| 1 | | 5 | | 4 | | 9 | | |
| | | | | | | | | |
| | 4 | 7 | | 2 | 8 | | 3 | |
| | | | | | 9 | | 8 | |
| | 6 | | | | 7 | | 4 | |
| 3 | 7 | | | 8 | | 2 | | |
| 7 | | | | | | | 6 | 5 |
| 2 | | | | | | | 7 | 9 |
| | | | | | | 4 | | |
- Puzzle ID
LDI0-09a08c6c68a5b3b7c7de0bccabfc015df2b131b4- Clue count
- 25
- Unique solution
- Verified
- LDI v0 score
- 11
- Tier
- Easy
- Hardest technique
- Hidden Single
- Logical steps
- 56
Verified key step: Naked Single: place 2 at row 1, column 8.
Medium
| | | | 5 | 2 | | | 7 | 6 |
| 4 | | | | | | 3 | 2 | |
| | | | 9 | | | | | 8 |
| | | | | | | | | |
| | | 7 | 2 | | 5 | | | |
| | 6 | | | 8 | | 4 | | |
| | 3 | | 1 | | | | | |
| | | 2 | | | 9 | 1 | | 5 |
| | | 9 | | | 8 | | | 7 |
- Puzzle ID
LDI0-1f1e91cb659b3ee23b92170da088b300f332d032- Clue count
- 24
- Unique solution
- Verified
- LDI v0 score
- 20
- Tier
- Medium
- Hardest technique
- Hidden Single
- Logical steps
- 57
Verified key step: Naked Single: place 9 at row 1, column 7.
Hard
| | | | | | 5 | | | |
| | | 6 | | | 3 | 7 | | 9 |
| 1 | 3 | | | | | | | 8 |
| | | | | | | | | |
| 8 | | | 3 | | 6 | | | |
| | 9 | | 7 | 1 | | 8 | | |
| 4 | | 5 | | | | 9 | | |
| | | 1 | 4 | | | | | 6 |
| 2 | | 9 | 5 | | | 4 | | 7 |
- Puzzle ID
LDI0-19da81925e6df7003863b9d72d3b3ebaa4c97442- Clue count
- 26
- Unique solution
- Verified
- LDI v0 score
- 24
- Tier
- Hard
- Hardest technique
- Hidden Single
- Logical steps
- 55
Verified key step: Naked Single: place 5 at row 2, column 1.
Expert
| 7 | | | | 3 | 8 | | 2 | |
| | 5 | 6 | 2 | 7 | 9 | | | |
| | | | | | | | | 5 |
| | 8 | | | | | | | 4 |
| | | 3 | | | | 5 | | |
| 6 | | | | | | | 7 | |
| 9 | | | | | | | | |
| | | | 4 | 8 | 6 | 3 | 5 | |
| | 3 | | 9 | 1 | | | | 6 |
- Puzzle ID
LDI0-1eaa29d3c76a497e0cb6ced4bd3043806c28e7d2- Clue count
- 26
- Unique solution
- Verified
- LDI v0 score
- 43
- Tier
- Expert
- Hardest technique
- Hidden Pair
- Logical steps
- 56
Verified key step: Hidden Single: place 5 at row 1, column 4.
2026-07-25 · LDI v0
Play this dated challenge
LDI v0
Verified puzzle facts
- Puzzle ID
LDI0-09a08c6c68a5b3b7c7de0bccabfc015df2b131b4- LDI score (0–100)
- 11
- Clue count
- 25
- Logical steps
- 56
- Hardest technique
- Hidden Single
Clue count is a board fact, not the difficulty verdict. The tier comes from this published LDI version.