| 1020 | Rope | Autumn School Contest 2000 | 12850 | 103 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 19298 | 69 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 10573 | 111 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 9888 | 118 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 16447 | 71 |
| 1086 | Cryptography | Spring School Contest 2001 | 10465 | 112 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 14606 | 30 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 11372 | 38 |
| 1264 | Workdays | Autumn School Contest 2003 | 17965 | 25 |
| 1293 | Eniya | Spring School Contest 2004 | 25869 | 17 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 11837 | 38 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 10844 | 41 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 24799 | 18 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 8752 | 43 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 11759 | 20 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 7563 | 23 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 8609 | 18 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 4192 | 36 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 4211 | 29 |
