| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. N Spiridonov vs A Lanc |
| 1-0 | 42 | 1975 | Czechoslovak Championship (International) | A48 King's Indian |
| 52. A Lanc vs J Pribyl |
| 1-0 | 34 | 1975 | Czechoslovak Championship (International) | B04 Alekhine's Defense, Modern |
| 53. Barcza vs A Lanc |
| 1-0 | 46 | 1975 | Czechoslovak Championship (International) | D02 Queen's Pawn Game |
| 54. J Rukavina vs A Lanc |
| ½-½ | 62 | 1975 | Czechoslovak Championship (International) | A04 Reti Opening |
| 55. G Estevez Morales vs A Lanc |
| 1-0 | 41 | 1975 | Czechoslovak Championship (International) | A42 Modern Defense, Averbakh System |
| 56. A Lanc vs J Lechtynsky |
| 0-1 | 29 | 1975 | Czechoslovak Championship (International) | B12 Caro-Kann Defense |
| 57. Hort vs A Lanc |
| 1-0 | 75 | 1975 | Czechoslovak Championship (International) | E94 King's Indian, Orthodox |
| 58. A Lanc vs Taimanov |
| ½-½ | 38 | 1975 | Czechoslovak Championship (International) | B46 Sicilian, Taimanov Variation |
| 59. A Lanc vs Uhlmann |
| ½-½ | 42 | 1975 | Czechoslovak Championship (International) | C19 French, Winawer, Advance |
| 60. A Lanc vs Jansa |
| 0-1 | 42 | 1975 | Czechoslovak Championship (International) | B82 Sicilian, Scheveningen |
| 61. A Lanc vs Suetin |
| 0-1 | 40 | 1975 | Czechoslovak Championship (International) | B43 Sicilian, Kan, 5.Nc3 |
| 62. P Travnicek vs A Lanc |
| 1-0 | 41 | 1976 | Czechoslovak Championship | B31 Sicilian, Rossolimo Variation |
| 63. A Lanc vs I Jankovec |
| 1-0 | 41 | 1976 | Czechoslovak Championship | B93 Sicilian, Najdorf, 6.f4 |
| 64. Plachetka vs A Lanc |
| ½-½ | 42 | 1976 | Czechoslovak Championship | E62 King's Indian, Fianchetto |
| 65. A Lanc vs I Privara |
| 1-0 | 29 | 1976 | Czechoslovak Championship | B32 Sicilian |
| 66. J Augustin vs A Lanc |
| 1-0 | 33 | 1976 | Czechoslovak Championship | A07 King's Indian Attack |
| 67. L Neckar vs A Lanc |
| 1-0 | 36 | 1976 | Czechoslovak Championship | A49 King's Indian, Fianchetto without c4 |
| 68. E Meduna vs A Lanc |
| ½-½ | 44 | 1976 | Czechoslovak Championship | B31 Sicilian, Rossolimo Variation |
| 69. A Lanc vs A Kubicek |
| 0-1 | 48 | 1976 | Czechoslovak Championship | B09 Pirc, Austrian Attack |
| 70. P Petran vs A Lanc |
| 0-1 | 21 | 1976 | Czechoslovak Championship | A37 English, Symmetrical |
| 71. A Lanc vs J Lechtynsky |
 | ½-½ | 51 | 1976 | Czechoslovak Championship | C53 Giuoco Piano |
| 72. J Sikora-Lerch vs A Lanc |
| ½-½ | 46 | 1976 | Czechoslovak Championship | B64 Sicilian, Richter-Rauzer Attack |
| 73. A Lanc vs J Trapl |
| 1-0 | 38 | 1976 | Czechoslovak Championship | B72 Sicilian, Dragon |
| 74. A Lanc vs E Prandstetter |
| 0-1 | 31 | 1976 | Czechoslovak Championship | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 75. A Lanc vs Jansa |
| 0-1 | 46 | 1976 | Czechoslovak Championship | B46 Sicilian, Taimanov Variation |
Kibitzing
