| idnr: 10069 
|  |  |  |  | 2 |  | 3 | 8 | 5 |  
| 2 |  |  |  | 6 | 3 |  |  | 8 |  
|  |  | 5 | 8 | 1 | 9 |  |  |  |  
|  |  | 1 | 7 |  |  |  | 9 |  |  
|  | 3 |  | 5 |  | 2 |  | 4 |  |  
|  | 7 |  |  |  | 1 | 2 |  |  |  
|  |  |  | 2 | 7 | 6 | 8 |  |  |  
| 4 |  |  | 1 | 8 |  |  |  | 7 |  
| 5 | 8 | 3 |  | 4 |  |  |  |  |  Difficulty: Very hard (0) | idnr: 21263 
| 6 |  |  | 9 |  | 2 | 8 | 7 | 4 |  
| 9 | 8 | 6 | 2 |  |  | 3 |  |  |  
|  |  |  | 5 | 2 | 9 | 4 |  |  |  
|  |  |  |  | 7 |  | 1 |  | 6 |  
|  |  |  | 6 |  | 7 |  |  |  |  
| 7 |  | 4 |  | 3 |  |  |  |  |  
|  |  | 5 | 4 | 6 | 8 |  |  |  |  
|  |  | 3 |  |  | 4 | 6 | 2 | 8 |  
| 4 | 7 | 8 | 3 |  | 1 |  |  | 2 |  Difficulty: Super easy (0) | 
idnr: 24360 
|  | 4 |  |  | 1 |  |  | 3 | 6 |  
| 3 |  | 4 | 2 |  | 6 |  | 8 |  |  
|  | 5 | 3 | 6 |  |  |  |  | 9 |  
| 8 |  |  | 5 |  |  |  |  | 1 |  
|  |  | 6 |  |  |  | 8 |  |  |  
| 7 |  |  |  |  | 9 |  |  | 4 |  
| 6 |  |  |  |  | 5 | 2 | 4 |  |  
|  | 6 |  | 4 |  | 3 | 5 |  | 7 |  
| 1 | 3 |  |  | 8 |  |  | 9 |  |  Difficulty: Very easy (0) | idnr: 9351 
|  |  | 3 |  |  | 2 |  | 4 | 7 |  
|  |  |  |  |  | 5 | 9 | 7 | 1 |  
|  | 6 | 8 |  | 4 | 3 |  |  |  |  
|  | 1 |  |  |  | 9 | 7 | 6 |  |  
|  |  | 9 | 5 |  | 4 | 1 |  |  |  
|  | 7 | 4 | 6 |  |  |  | 5 |  |  
|  |  |  | 9 | 8 |  | 4 | 1 |  |  
| 1 | 2 | 7 | 4 |  |  |  |  |  |  
| 5 | 4 |  | 7 |  |  | 3 |  |  |  Difficulty: Very easy (0) |