| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Z Rutka vs Kupreichik |
| 0-1 | 21 | 1966 | 2nd Christmas Tournament | A07 King's Indian Attack |
| 27. F Blatny vs Kupreichik |
| 0-1 | 36 | 1966 | 2nd Christmas Tournament | A07 King's Indian Attack |
| 28. Kupreichik vs J Augustin |
| 1-0 | 51 | 1966 | 2nd Christmas Tournament | C77 Ruy Lopez |
| 29. Kupreichik vs D Ghizdavu |
| 0-1 | 46 | 1967 | International Junior Tournament | B32 Sicilian |
| 30. G Kende vs Kupreichik |
| 0-1 | 46 | 1967 | International Junior Tournament | E80 King's Indian, Samisch Variation |
| 31. Kupreichik vs M Sirkia |
| 1-0 | 29 | 1967 | International Junior Tournament | B43 Sicilian, Kan, 5.Nc3 |
| 32. Balashov vs Kupreichik |
 | 1-0 | 41 | 1967 | International Junior Tournament | B36 Sicilian, Accelerated Fianchetto |
| 33. Balashov vs Kupreichik |
| 1-0 | 39 | 1967 | URS | D25 Queen's Gambit Accepted |
| 34. Kupreichik vs Y Anikaev |
| 1-0 | 27 | 1967 | Junior Qualification Tournament - semifinal-2 | B43 Sicilian, Kan, 5.Nc3 |
| 35. Kupreichik vs Ljubojevic |
| 1-0 | 41 | 1967 | International Junior Tournament | A07 King's Indian Attack |
| 36. W Maroszczyk vs Kupreichik |
| 0-1 | 24 | 1967 | 2nd Christmas Tournament | E75 King's Indian, Averbakh, Main line |
| 37. V Nowak vs Kupreichik |
| 0-1 | 10 | 1967 | 2nd Christmas Tournament | D20 Queen's Gambit Accepted |
| 38. Kupreichik vs E Walica |
| 1-0 | 40 | 1967 | 2nd Christmas Tournament | C77 Ruy Lopez |
| 39. E Nowak vs Kupreichik |
| 0-1 | 39 | 1967 | 2nd Christmas Tournament | C01 French, Exchange |
| 40. Kupreichik vs S Kornasiewicz |
| 1-0 | 42 | 1967 | 2nd Christmas Tournament | C77 Ruy Lopez |
| 41. Kupreichik vs O Rogozhnikov |
| ½-½ | 25 | 1967 | 10th Soviet Team Championship qual-2 | C41 Philidor Defense |
| 42. I Figler vs Kupreichik |
| ½-½ | 32 | 1967 | 10th Soviet Team Championship qual-2 | D20 Queen's Gambit Accepted |
| 43. Kupreichik vs M Mukhin |
| 0-1 | 54 | 1967 | 10th Soviet Team Championship qual-2 | C77 Ruy Lopez |
| 44. V Kirpichnikov vs Kupreichik |
| 1-0 | 41 | 1967 | 10th Soviet Team-ch qual group 2 | B89 Sicilian |
| 45. Kupreichik vs V Adler |
| ½-½ | 22 | 1967 | 10th Soviet Team Championship qual-2 | B83 Sicilian |
| 46. A Lukin vs Kupreichik |
| 1-0 | 42 | 1967 | 10th Soviet Team Championship Final-A | B33 Sicilian |
| 47. Kupreichik vs T Georgadze |
| 0-1 | 53 | 1967 | 10th Soviet Team Championship Final-A | B32 Sicilian |
| 48. Balashov vs Kupreichik |
| 1-0 | 43 | 1967 | 10th Soviet Team Championship Final-A | B31 Sicilian, Rossolimo Variation |
| 49. Kupreichik vs M Dvoretzky |
| ½-½ | 55 | 1967 | 10th Soviet Team Championship Final-A | A07 King's Indian Attack |
| 50. Bagirov vs Kupreichik |
| 1-0 | 60 | 1968 | Gomel | E69 King's Indian, Fianchetto, Classical Main line |
Kibitzing
