| 1020 | Rope | Autumn School Contest 2000 | 13223 | 103 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 19973 | 68 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 10894 | 111 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 10094 | 118 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 17158 | 70 |
| 1086 | Cryptography | Spring School Contest 2001 | 10875 | 110 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 15293 | 29 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 11988 | 37 |
| 1264 | Workdays | Autumn School Contest 2003 | 19141 | 24 |
| 1293 | Eniya | Spring School Contest 2004 | 27577 | 17 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 12404 | 37 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 11309 | 40 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 26357 | 18 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 9352 | 41 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 12833 | 20 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 8568 | 22 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 9824 | 17 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 4718 | 35 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 4995 | 28 |
| 2111 | Plato | University academic school olympiad in informatics 2019 | 592 | 84 |
| 2138 | The Good, the Bad and the Ugly | Ural School Programming Contest 2019 | 169 | 210 |
| 2142 | Magic | Ural School Programming Contest 2019 | 148 | 238 |
| 2149 | Pigeonhole Principle | Ural School Programming Contest 2019 | 160 | 221 |
