| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. A Kostin vs R Kalod |
| 1-0 | 39 | 1996 | SVK-ch op | B21 Sicilian, 2.f4 and 2.d4 |
| 27. A Kostin vs J Janos |
| 1-0 | 39 | 1996 | SVK-ch op | B22 Sicilian, Alapin |
| 28. F Portisch vs A Kostin |
| 1-0 | 33 | 1996 | Harkany Tenkes Cup | A57 Benko Gambit |
| 29. J C Gonzalez Zamora vs A Kostin |
| 1-0 | 12 | 1996 | Harkany Tenkes Cup | E17 Queen's Indian |
| 30. C Navrotescu vs A Kostin |
| 1-0 | 40 | 1996 | Decin op | A58 Benko Gambit |
| 31. A Kostin vs A Gavrilov |
| 0-1 | 50 | 1996 | Decin op | C45 Scotch Game |
| 32. S Shurygin vs A Kostin |
| 1-0 | 43 | 1996 | Decin op | E62 King's Indian, Fianchetto |
| 33. A Kostin vs R Kalod |
| 0-1 | 51 | 1996 | Moravia-ch op | B22 Sicilian, Alapin |
| 34. L Szemzo vs A Kostin |
| 0-1 | 28 | 1996 | Harkany Tenkes Cup | A34 English, Symmetrical |
| 35. A Schmitt vs A Kostin |
| 1-0 | 33 | 1996 | Gyula op | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 36. J Matejovic vs A Kostin |
| 0-1 | 39 | 1996 | SVK-ch op | E00 Queen's Pawn Game |
| 37. A Kostin vs S Kislov |
| 1-0 | 35 | 1996 | Harkany Tenkes Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 38. A Ivan vs A Kostin |
| 0-1 | 35 | 1996 | Harkany Tenkes Cup | B22 Sicilian, Alapin |
| 39. A Kostin vs A Vaulin |
| 1-0 | 29 | 1996 | Decin op | B21 Sicilian, 2.f4 and 2.d4 |
| 40. A Kostin vs S Daroczy |
| 1-0 | 45 | 1996 | Gyula op | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 41. A Kostin vs V Kornilovich |
| 1-0 | 35 | 1996 | SVK-ch op | C45 Scotch Game |
| 42. A Kostin vs B Hajdu |
| 1-0 | 22 | 1996 | Gyula op | B21 Sicilian, 2.f4 and 2.d4 |
| 43. A Kostin vs P Velicka |
| 1-0 | 40 | 1996 | Czech Open | B10 Caro-Kann |
| 44. M Zurek vs A Kostin |
| ½-½ | 16 | 1996 | Czech Open | D02 Queen's Pawn Game |
| 45. A Kostin vs G Tunik |
| 1-0 | 46 | 1996 | Czech Open | B21 Sicilian, 2.f4 and 2.d4 |
| 46. M Kaminski vs A Kostin |
| 1-0 | 30 | 1996 | Czech Open | B42 Sicilian, Kan |
| 47. J Stocek vs A Kostin |
| 0-1 | 44 | 1996 | Czech Open | B48 Sicilian, Taimanov Variation |
| 48. A Kostin vs M Matlak |
| ½-½ | 10 | 1996 | Czech Open | C18 French, Winawer |
| 49. A Kostin vs S Galdunts |
| ½-½ | 8 | 1996 | Czech Open | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 50. M Khachiyan vs A Kostin |
| 1-0 | 36 | 1996 | Czech Open | A45 Queen's Pawn Game |
Kibitzing
