| 1020 | Rope | Autumn School Contest 2000 | 12078 | 104 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 17889 | 70 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 9884 | 113 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 9547 | 116 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 15046 | 74 |
| 1086 | Cryptography | Spring School Contest 2001 | 9544 | 116 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 13287 | 31 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 10219 | 41 |
| 1264 | Workdays | Autumn School Contest 2003 | 15575 | 27 |
| 1293 | Eniya | Spring School Contest 2004 | 22434 | 19 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 10793 | 40 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 9961 | 43 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 21535 | 20 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 7540 | 46 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 9694 | 22 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 5514 | 27 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 5920 | 20 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 3131 | 38 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 2680 | 34 |
