| 1020 | Rope | Autumn School Contest 2000 | 15553 | 99 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 23101 | 67 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 12352 | 111 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 10856 | 125 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 20053 | 67 |
| 1086 | Cryptography | Spring School Contest 2001 | 12796 | 106 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 17994 | 28 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 14702 | 34 |
| 1264 | Workdays | Autumn School Contest 2003 | 24220 | 21 |
| 1293 | Eniya | Spring School Contest 2004 | 35282 | 15 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 15117 | 34 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 13223 | 39 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 33823 | 15 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 11791 | 38 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 17296 | 19 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 12799 | 21 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 15225 | 16 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 6595 | 38 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 8281 | 27 |
| 2111 | Plato | University academic school olympiad in informatics 2019 | 2137 | 69 |
| 2138 | The Good, the Bad and the Ugly | Ural School Programming Contest 2019 | 1287 | 105 |
| 2142 | Magic | Ural School Programming Contest 2019 | 1129 | 120 |
| 2149 | Pigeonhole Principle | Ural School Programming Contest 2019 | 946 | 143 |
