| ID | 問題 | 最終更新時刻 | |
| 1978 | Hanafuda Shuffle | 2007-08-27 10:09:52 | |
| 1979 | Red and Black | 2007-08-27 19:57:12 | |
| 1980 | Unit Fraction Partition | 2007-08-28 16:18:42 | |
| 1981 | Circle and Points | 2007-08-28 16:34:33 | |
| 1982 | Water Tank | 2007-08-29 17:46:19 |
| ID | 問題 | 最終更新時刻 | |
| 1978 | Hanafuda Shuffle | 2007-08-27 10:09:52 | |
| 1979 | Red and Black | 2007-08-27 19:57:12 | |
| 1980 | Unit Fraction Partition | 2007-08-28 16:18:42 | |
| 1981 | Circle and Points | 2007-08-28 16:34:33 | |
| 1982 | Water Tank | 2007-08-29 17:46:19 |