| | A | Run Length Encoding | Ulm Local 2004 | 3 | 27 |
| | B | Knight Moves | University of Ulm Local Contest 1996,zoj1091 | 2 | 2 |
| | C | Jugs | South Central USA Region, 1997 | 0 | 1 |
| | D | Rescue | ZOJ Monthly, October 2003,zoj1649 | 4 | 20 |
| | E | 碉堡 | Zhejiang University Local Contest 2001 zj01002 | 3 | 5 |
| | F | Crashing Balloon | Zhejiang University Local Contest 2001,zoj1003 | 3 | 7 |
| | G | Anagrams by Stack | Zhejiang University Local Contest 2001 | 0 | 0 |
| | H | Sum It Up | Mid-Central USA 1997 | 0 | 0 |
| | I | Prime Ring Problem | Asia 1996, Shanghai (Mainland China)hdu1016 | 0 | 2 |
| | J | T-Shirt Gumbo | South Central USA 2003,aoj2192 | 0 | 0 |
| | K | Square | Waterloo local 2002.09.21 | 1 | 11 |
| | L | Vase Collection | Northwestern Europe 2003,zoj1987 | 0 | 2 |
| | M | Addition Chains | University of Ulm Local Contest 1997,zoj1937 | 0 | 0 |