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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Ivkov vs Letelier |
| 1-0 | 26 |
1955 |
Mar del Plata | C84 Ruy Lopez, Closed |
| 2. Ivkov vs B Rabar |
| ½-½ | 40 |
1957 |
Sombor (22) | C84 Ruy Lopez, Closed |
| 3. Ivkov vs J Sumar |
| 1-0 | 62 |
1959 |
Lima | C84 Ruy Lopez, Closed |
| 4. Ivkov vs Hort |
| 1-0 | 38 |
1962 |
Varna | C84 Ruy Lopez, Closed |
| 5. Ivkov vs Zeyen |
| 1-0 | 30 |
1962 |
Varna | C84 Ruy Lopez, Closed |
| 6. Ivkov vs E Gereben |
| 1-0 | 72 |
1963 |
Beverwijk | C84 Ruy Lopez, Closed |
| 7. Ivkov vs Geller |
| 1-0 | 51 |
1964 |
Leningrad | C84 Ruy Lopez, Closed |
| 8. Ivkov vs M Damjanovic |
| 1-0 | 33 |
1966 |
Jugoslavien | C84 Ruy Lopez, Closed |
| 9. Ivkov vs Reshevsky |
 | ½-½ | 93 |
1966 |
Santa Monica (1) | C84 Ruy Lopez, Closed |
| 10. Ivkov vs Szabo |
| ½-½ | 76 |
1966 |
Vrnjacka Banja | C84 Ruy Lopez, Closed |
| 11. Ivkov vs Petrosian |
| ½-½ | 41 |
1968 |
Bamberg | C84 Ruy Lopez, Closed |
| 12. Ivkov vs Smejkal |
 | 0-1 | 24 |
1970 |
Prag | C84 Ruy Lopez, Closed |
| 13. Ivkov vs Xie Jun |
| 0-1 | 36 |
1993 |
Vienna Walzer | C84 Ruy Lopez, Closed |
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Secrets of Opening Surprises
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