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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. E Joppen vs Ivkov |
| ½-½ | 40 |
1954 |
Belgrade | C84 Ruy Lopez, Closed |
| 2. K Darga vs Ivkov |
| 0-1 | 33 |
1955 |
Hastings | C84 Ruy Lopez, Closed |
| 3. Keres vs Ivkov |
| ½-½ | 27 |
1956 |
Belgrade | C84 Ruy Lopez, Closed |
| 4. L Alster vs Ivkov |
| ½-½ | 12 |
1957 |
Vienna/Baden | C84 Ruy Lopez, Closed |
| 5. Bronstein vs Ivkov |
| ½-½ | 20 |
1963 |
Beverwijk | C84 Ruy Lopez, Closed |
| 6. Robatsch vs Ivkov |
| 0-1 | 23 |
1964 |
Maribor f m zt | C84 Ruy Lopez, Closed |
| 7. Gipslis vs Ivkov |
| ½-½ | 34 |
1965 |
Zagreb | C84 Ruy Lopez, Closed |
| 8. H Westerinen vs Ivkov |
| 0-1 | 36 |
1970 |
Wijk aan Zee | C84 Ruy Lopez, Closed |
| 9. A Medina-Garcia vs Ivkov |
| ½-½ | 26 |
1972 |
Palma de Mallorca | C84 Ruy Lopez, Closed |
| 10. B Ivanovic vs Ivkov |
| ½-½ | 20 |
1976 |
Skopje | C84 Ruy Lopez, Closed |
| 11. Short vs Ivkov |
| ½-½ | 41 |
1985 |
Lugano op | C84 Ruy Lopez, Closed |
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Secrets of Opening Surprises
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