| 1020 | Rope | Autumn School Contest 2000 | 13298 | 103 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 20040 | 68 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 10982 | 110 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 10117 | 118 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 17267 | 69 |
| 1086 | Cryptography | Spring School Contest 2001 | 10916 | 110 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 15365 | 29 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 12059 | 37 |
| 1264 | Workdays | Autumn School Contest 2003 | 19271 | 24 |
| 1293 | Eniya | Spring School Contest 2004 | 27756 | 17 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 12493 | 37 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 11367 | 40 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 26561 | 18 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 9419 | 41 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 12952 | 20 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 8683 | 22 |
| 2012 | About Grisha N. | NEERC 2014 Eastern Subregional | 9973 | 17 |
| 2023 | Donald is a postman | NEERC 2014 Eastern Subregional | 4783 | 35 |
| 2066 | Simple Expression | Ural Regional School Programming Contest 2015 | 5092 | 28 |
| 2111 | Plato | University academic school olympiad in informatics 2019 | 646 | 81 |
| 2138 | The Good, the Bad and the Ugly | Ural School Programming Contest 2019 | 256 | 152 |
| 2142 | Magic | Ural School Programming Contest 2019 | 192 | 200 |
| 2149 | Pigeonhole Principle | Ural School Programming Contest 2019 | 194 | 198 |
