Neumann's favorites
| # | Problem |
|---|---|
| 14844 | OMCB086(E) |
| 14758 | OMCB085(C) |
| 6492 | OMCB037(C) |
| 17565 | OMC279(A) |
| 1264 | OMC043(A) |
| 14354 | OMCB055(A) |
| 18761 | 浜松2026予選(A) |
| 5428 | OMC143(E) |
| 3171 | OMC138(D) |
| 17596 | OMCB084(B) |
| 10762 | OMCB058(B) |
| 13277 | OMC289(D) |
| 13411 | OMC288(B) |
| 4444 | OMC113(B) |
| 2812 | OMC084(A) |
| 7308 | OMCB022(B) |
| 4875 | OMC189(A) |
| 6213 | OMCB068(B) |