| 1020 | Rope | Autumn School Contest 2000 | 12782 | 103 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 19146 | 69 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 10497 | 112 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 9850 | 118 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 16273 | 71 |
| 1086 | Cryptography | Spring School Contest 2001 | 10374 | 112 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 14470 | 30 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 11257 | 39 |
| 1264 | Workdays | Autumn School Contest 2003 | 17708 | 25 |
| 1293 | Eniya | Spring School Contest 2004 | 25535 | 17 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 11738 | 38 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 10750 | 41 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 24476 | 19 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 8653 | 43 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 11565 | 20 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 7385 | 24 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 8394 | 18 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 4089 | 36 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 4049 | 30 |
