Verified daily Sudoku challenge
Daily Sudoku for July 28, 2026
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Available through: August 15, 2026
Four verified puzzles
Easy
| | | 7 | 1 | | | | | |
| | 8 | 1 | | 6 | | | | 5 |
| | 6 | 3 | | 8 | | | 4 | 2 |
| | | | | | | 2 | | |
| 8 | | | | | | | | 6 |
| | | 9 | | | | | | |
| 1 | 3 | | | 2 | | 6 | 5 | |
| 4 | | | | 7 | | 9 | 2 | |
| | | | | | 3 | 8 | | |
- Puzzle ID
LDI0-0e2d480b8d94f97bbdf79cedbe7ebcadf115784c- Clue count
- 26
- Unique solution
- Verified
- LDI v0 score
- 9
- Tier
- Easy
- Hardest technique
- Hidden Single
- Logical steps
- 55
Verified key step: Naked Single: place 3 at row 1, column 7.
Medium
| | | | | 9 | 5 | 2 | | |
| | 5 | | | | | | | 4 |
| | 2 | | 8 | | | 5 | | |
| 5 | | 9 | | 2 | | | | |
| 1 | 7 | 2 | | 8 | | 3 | 6 | 9 |
| | | | | 7 | | 1 | | 2 |
| | | 1 | | | 7 | | 4 | |
| 6 | | | | | | | 1 | |
| | | 7 | 1 | 4 | | | | |
- Puzzle ID
LDI0-2a65ed1041d40989b0353cf7a82c4002201496c3- Clue count
- 29
- Unique solution
- Verified
- LDI v0 score
- 21
- Tier
- Medium
- Hardest technique
- Hidden Single
- Logical steps
- 52
Verified key step: Naked Single: place 4 at row 5, column 6.
Hard
| 2 | 4 | | 5 | | | 1 | | |
| 1 | | | | | | 9 | | |
| | | | | | 9 | | | 8 |
| 6 | | | | | | | | 7 |
| | 9 | 7 | | | | | 2 | |
| 5 | | 1 | | | | 3 | | |
| | | | | | | | 7 | |
| | | 2 | | | 5 | | | 4 |
| | | | 6 | | 7 | | 8 | 3 |
- Puzzle ID
LDI0-1dac9c13edd9f452432bc5ca9f02329764e2990f- Clue count
- 24
- Unique solution
- Verified
- LDI v0 score
- 26
- Tier
- Hard
- Hardest technique
- Hidden Single
- Logical steps
- 57
Verified key step: Naked Single: place 6 at row 1, column 9.
Expert
| | | | | 3 | | | | 1 |
| | 9 | 3 | | | 7 | 5 | 4 | |
| 5 | | | | 1 | | | 6 | |
| | 3 | | | 9 | 4 | 1 | | |
| 8 | | | | | 6 | | | |
| | | | 3 | | | | | |
| | | | | | 9 | 2 | | |
| | 7 | | | | 2 | 3 | 9 | |
| | 2 | | | 8 | | | | 4 |
- Puzzle ID
LDI0-295ef67dec53d9796742b37cc6e6c3359dec096e- Clue count
- 26
- Unique solution
- Verified
- LDI v0 score
- 67
- Tier
- Expert
- Hardest technique
- XY-Wing
- Logical steps
- 57
Verified key step: Naked Single: place 8 at row 3, column 6.
2026-07-28 · LDI v0
Play this dated challenge
LDI v0
Verified puzzle facts
- Puzzle ID
LDI0-0e2d480b8d94f97bbdf79cedbe7ebcadf115784c- LDI score (0–100)
- 9
- 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.