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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Ivkov vs Portisch |
| ½-½ | 31 |
1966 |
Palma de Mallorca | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 2. Gipslis vs Portisch |
| ½-½ | 24 |
1967 |
Moscow (Russia) | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 3. Kavalek vs Portisch |
| 0-1 | 38 |
1967 |
Sousse | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 4. Korchnoi vs Portisch |
 | 0-1 | 32 |
1968 |
Wijk aan Zee | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 5. Matulovic vs Portisch |
| ½-½ | 47 |
1970 |
Palma de Mallorca | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 6. S Tatai vs Portisch |
| 0-1 | 32 |
1971 |
Hastings | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 7. Karpov vs Portisch |
 | 1-0 | 64 |
1975 |
It, Milan | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 8. Browne vs Portisch |
| 0-1 | 41 |
1975 |
Milan Tournament | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 9. DeFirmian vs Portisch |
| ½-½ | 64 |
1990 |
Manila (Philippines) | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
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Secrets of Opening Surprises
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