Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. D Lapienis vs E Chukaev |
| 0-1 | 32 | 1961 | Lithuanian Championship | D54 Queen's Gambit Declined, Anti-Neo-Orthodox Variation |
27. D Lapienis vs A Aufman |
| 1-0 | 53 | 1961 | Lithuanian Championship | A56 Benoni Defense |
28. D Lapienis vs Y Gusev |
| ½-½ | 82 | 1961 | URS-ch sf Novgorod | A56 Benoni Defense |
29. A Hasidovski vs D Lapienis |
| 0-1 | 56 | 1961 | URS-ch sf Novgorod | B53 Sicilian |
30. D Lapienis vs Kholmov |
| 0-1 | 28 | 1961 | URS-ch sf Novgorod | E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation |
31. Suetin vs D Lapienis |
| 0-1 | 52 | 1961 | URS-ch sf Novgorod | B77 Sicilian, Dragon, Yugoslav Attack |
32. D Lapienis vs B Katalymov |
| 1-0 | 57 | 1961 | URS-ch sf Novgorod | A53 Old Indian |
33. D Lapienis vs Savon |
| 0-1 | 53 | 1961 | URS-ch sf Novgorod | E60 King's Indian Defense |
34. D Lapienis vs Koblents |
| 0-1 | 18 | 1962 | Lithuania - Latvia | D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O |
35. V Seredenko vs D Lapienis |
| ½-½ | 36 | 1962 | URS-ch semifinal Novosibirsk | A07 King's Indian Attack |
36. Gusarov vs D Lapienis |
 | ½-½ | 65 | 1962 | URS-ch semifinal Novosibirsk | B76 Sicilian, Dragon, Yugoslav Attack |
37. D Lapienis vs Gufeld |
| ½-½ | 22 | 1962 | URS-ch semifinal Novosibirsk | A56 Benoni Defense |
38. V Zhilin vs D Lapienis |
 | ½-½ | 73 | 1962 | URS-ch semifinal Novosibirsk | B76 Sicilian, Dragon, Yugoslav Attack |
39. D Lapienis vs G Khodos |
| 0-1 | 39 | 1962 | URS-ch semifinal Novosibirsk | A56 Benoni Defense |
40. I Mosionzhik vs D Lapienis |
| ½-½ | 20 | 1962 | URS-ch semifinal Novosibirsk | B77 Sicilian, Dragon, Yugoslav Attack |
41. A Vaisman vs D Lapienis |
| 1-0 | 41 | 1962 | URS-ch semifinal Novosibirsk | E69 King's Indian, Fianchetto, Classical Main line |
42. D Lapienis vs Y Sakharov |
| ½-½ | 41 | 1962 | URS-ch semifinal Novosibirsk | A56 Benoni Defense |
43. D Lapienis vs M Mukhitdinov |
| ½-½ | 16 | 1962 | URS-ch semifinal Novosibirsk | E40 Nimzo-Indian, 4.e3 |
44. D Lapienis vs Ibragimov |
| ½-½ | 17 | 1962 | URS-ch semifinal Novosibirsk | E59 Nimzo-Indian, 4.e3, Main line |
45. D Lapienis vs A I Konstantinov |
| 0-1 | 33 | 1962 | URS-ch semifinal Novosibirsk | E60 King's Indian Defense |
46. Bagirov vs D Lapienis |
| 1-0 | 38 | 1962 | URS-ch semifinal Novosibirsk | E88 King's Indian, Samisch, Orthodox, 7.d5 c6 |
47. D Lapienis vs Y Krutikhin |
| 0-1 | 28 | 1962 | URS-ch semifinal Novosibirsk | A81 Dutch |
48. Y Kots vs D Lapienis |
| 1-0 | 53 | 1962 | URS-ch semifinal Novosibirsk | E62 King's Indian, Fianchetto |
49. V Macs vs D Lapienis |
| 1-0 | 57 | 1962 | URS-ch semifinal Novosibirsk | B77 Sicilian, Dragon, Yugoslav Attack |
50. D Lapienis vs Y Rusakov |
| 0-1 | 24 | 1965 | Lithuanian Championship | E59 Nimzo-Indian, 4.e3, Main line |