| 1020 | Rope | Autumn School Contest 2000 | 11973 | 104 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 17709 | 70 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 9800 | 113 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 9506 | 116 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 14900 | 74 |
| 1086 | Cryptography | Spring School Contest 2001 | 9466 | 116 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 13111 | 31 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 10083 | 41 |
| 1264 | Workdays | Autumn School Contest 2003 | 15289 | 27 |
| 1293 | Eniya | Spring School Contest 2004 | 21981 | 19 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 10658 | 40 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 9838 | 43 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 21122 | 20 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 7373 | 47 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 9464 | 22 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 5259 | 27 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 5633 | 20 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 2965 | 38 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 2451 | 35 |
