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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Lechtynsky vs A Lanc |
| 1-0 | 31 |
1974 |
CSR-ch | E62 King's Indian, Fianchetto |
| 2. Plachetka vs A Lanc |
| ½-½ | 42 |
1976 |
CSR-ch | E62 King's Indian, Fianchetto |
| 3. Kholmov vs A Lanc |
| 1-0 | 50 |
1977 |
Balashiha | E71 King's Indian, Makagonov System (5.h3) |
| 4. Ftacnik vs A Lanc |
| 1-0 | 41 |
1984 |
Trnava | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 5. W Schmidt vs A Lanc |
| 1-0 | 72 |
1984 |
Tirnavia | E74 King's Indian, Averbakh, 6...c5 |
| 6. I Stohl vs A Lanc |
 | 1-0 | 25 |
1984 |
Trnava | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 7. Robatsch vs A Lanc |
| ½-½ | 23 |
1987 |
Trnava | E94 King's Indian, Orthodox |
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