| ID | NAME | RATIO | SOLVED | TRIED |
| A | Shortening Sequence | 69% | 2773 | 3969 |
| B | Composition | 32% | 832 | 2558 |
| C | Registration Day | 28% | 225 | 779 |
| D | MS Recognition | 4% | 20 | 409 |
Ended
| ID | NAME | RATIO | SOLVED | TRIED |
| A | Shortening Sequence | 69% | 2773 | 3969 |
| B | Composition | 32% | 832 | 2558 |
| C | Registration Day | 28% | 225 | 779 |
| D | MS Recognition | 4% | 20 | 409 |