Five's favorites
| # | Problem |
|---|---|
| 13727 | OMCB079(D) |
| 15781 | OMCB077(C) |
| 16355 | OMCB070(B) |
| 16633 | OMC276(B) |
| 15932 | OMCB069(E) |
| 7998 | OMCB069(C) |
| 8507 | OMC275(D) |
| 16386 | OMC275(C) |
| 9305 | OMC275(B) |
| 16414 | OMCB066(F) |
| 12430 | OMCB065(C) |
| 8281 | OMCB006(F) |
| 8754 | OMCB006(E) |
| 8083 | OMCB006(D) |
| 15650 | OMCB064(E) |
| 15846 | OMCB064(D) |