| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 251. I Yagupov vs K Aseev |
| 1-0 | 26 |
2003 |
It (open) St. Petersburg 300 | B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2 |
| 252. A Deviatkin vs K Aseev |
| 1-0 | 40 |
2003 |
St Petersburg vs. Moscow | B17 Caro-Kann, Steinitz Variation |
| 253. K Aseev vs G Golovchenko |
| 1-0 | 36 |
2003 |
It (open) St. Petersburg 300 | E15 Queen's Indian |
| 254. K Aseev vs A Potapov |
| 1-0 | 61 |
2003 |
Cappelle La Grande | C78 Ruy Lopez |
| 255. K Aseev vs I Khairullin |
| ½-½ | 29 |
2003 |
56th Russian Championships | B29 Sicilian, Nimzovich-Rubinstein |
| 256. K Aseev vs A Khromkin |
 | 1-0 | 24 |
2003 |
It (open) St. Petersburg 300 | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 257. K Aseev vs A Deviatkin |
 | 0-1 | 67 |
2003 |
St Petersburg vs. Moscow | D19 Queen's Gambit Declined Slav, Dutch |
| 258. K Aseev vs A Rychagov |
| ½-½ | 12 |
2003 |
56th Russian Championships | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 259. K Aseev vs N Vitiugov |
| 1-0 | 76 |
2003 |
It (open) St. Petersburg 300 | B44 Sicilian |
| 260. K Shirazi vs K Aseev |
 | 0-1 | 39 |
2003 |
Cappelle La Grande | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 261. Dvoirys vs K Aseev |
| 1-0 | 63 |
2003 |
56th Russian Championships | B92 Sicilian, Najdorf, Opocensky Variation |
| 262. A Feoktistov vs K Aseev |
| ½-½ | 71 |
2003 |
It (open) St. Petersburg 300 | E12 Queen's Indian |
| 263. A Mista vs K Aseev |
| 1-0 | 43 |
2003 |
Cappelle La Grande | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 264. A Lependin vs K Aseev |
| 0-1 | 59 |
2003 |
56th Russian Championships | A07 King's Indian Attack |
| 265. M V Novikov vs K Aseev |
| ½-½ | 66 |
2003 |
It (open) St. Petersburg 300 | B30 Sicilian |
| 266. K Aseev vs D Morawietz |
| 1-0 | 41 |
2003 |
Cappelle La Grande | B81 Sicilian, Scheveningen, Keres Attack |
| 267. K Aseev vs S Zablotsky |
| ½-½ | 60 |
2003 |
56th Russian Championships | C41 Philidor Defense |
| 268. K Aseev vs T Gareev |
| 0-1 | 44 |
2003 |
It (open) St. Petersburg 300 | E97 King's Indian |
| 269. K Aseev vs T Nalbandian |
| 1-0 | 49 |
2003 |
Cappelle La Grande | E94 King's Indian, Orthodox |
| 270. K Aseev vs V Yandemirov |
 | 0-1 | 22 |
2003 |
56th Russian Championships | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 271. K Aseev vs A Maly |
| 1-0 | 42 |
2003 |
It (open) St. Petersburg 300 | A35 English, Symmetrical |