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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Tal vs Portisch |
 | 1-0 | 33 |
1958 |
Varna | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 2. Szabo vs Portisch |
| 1-0 | 36 |
1959 |
Budapest | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 3. Szabo vs Portisch |
| ½-½ | 28 |
1961 |
HUN ch | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 4. G Barcza vs Portisch |
| ½-½ | 26 |
1962 |
Stockholm | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 5. J H Donner vs Portisch |
| ½-½ | 13 |
1965 |
? | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 6. J Flesch vs Portisch |
| ½-½ | 16 |
1965 |
Ungarn | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 7. Gligoric vs Portisch |
| 1-0 | 32 |
1968 |
Lugano | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 8. Polugaevsky vs Portisch |
| 1-0 | 41 |
1969 |
Magyarorszag | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 9. T Hillarp Persson vs Portisch |
| 1-0 | 27 |
2008 |
Sigeman & Co Tournament | E54 Nimzo-Indian, 4.e3, Gligoric System |
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Secrets of Opening Surprises
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