| Problem Name | Online Judge | Year | Contest | Difficulty Level | |
|---|---|---|---|---|---|
| 1 | Bit Compressor | Live Archive | 2006 | World Finals - San Antonio | 1 |
| 2 | Pyramids | Live Archive | 2011 | World Finals - Orlando | 1 |
| 3 | Prime Ring Problem | UVA | 1 | ||
| 4 | Robots on Ice | Live Archive | 2010 | World Finals - Harbin | 1 |
| 5 | CD | UVA | 1 | ||
| 6 | The Cubic End | Live Archive | 2005 | North America - Greater NY | 2 |
| 7 | Huffman Codes | Live Archive | 2008 | World Finals - Banff | 2 |
| 8 | My T-shirt suits me | UVA | 2 | ||
| 9 | Pride and Prejudice and Zombies | Live Archive | 2010 | North America - Pacific Northwest | 3 |
| 10 | House of Cards | Live Archive | 2009 | World Finals - Stockholm | 3 |
| 11 | Tony's Tour | PKU | 3 | ||
| 12 | Zombie Swallows | Live Archive | 2010 | North America - Pacific Northwest | 4 |
| 13 | Crossword Puzzle | Live Archive | 2001 | World Finals - Vancouver | 5 |
| 14 | The Primes | PKU | 5 |