| 1020 | Rope | Autumn School Contest 2000 | 12612 | 104 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 18793 | 69 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 10343 | 112 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 9773 | 118 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 15918 | 72 |
| 1086 | Cryptography | Spring School Contest 2001 | 10121 | 114 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 14129 | 30 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 11000 | 39 |
| 1264 | Workdays | Autumn School Contest 2003 | 17068 | 26 |
| 1293 | Eniya | Spring School Contest 2004 | 24606 | 18 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 11440 | 39 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 10568 | 42 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 23638 | 19 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 8377 | 44 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 11006 | 21 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 6769 | 25 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 7597 | 19 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 3850 | 37 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 3673 | 31 |
