| 1020 | Rope | Autumn School Contest 2000 | 13381 | 102 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 20149 | 68 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 11048 | 110 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 10144 | 119 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 17451 | 69 |
| 1086 | Cryptography | Spring School Contest 2001 | 11002 | 110 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 15487 | 29 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 12177 | 37 |
| 1264 | Workdays | Autumn School Contest 2003 | 19546 | 23 |
| 1293 | Eniya | Spring School Contest 2004 | 28191 | 16 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 12586 | 37 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 11443 | 40 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 26958 | 17 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 9516 | 41 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 13139 | 19 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 8829 | 22 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 10144 | 17 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 4868 | 35 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 5240 | 27 |
| 2111 | Plato | University academic school olympiad in informatics 2019 | 755 | 75 |
| 2138 | The Good, the Bad and the Ugly | Ural School Programming Contest 2019 | 335 | 128 |
| 2142 | Magic | Ural School Programming Contest 2019 | 251 | 170 |
| 2149 | Pigeonhole Principle | Ural School Programming Contest 2019 | 253 | 168 |
