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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Iskov vs DeFirmian |
| 0-1 | 78 |
1982 |
Reykjavik (Iceland) | B90 Sicilian, Najdorf |
| 2. J L Arnason vs DeFirmian |
| ½-½ | 47 |
1984 |
It (open) | B90 Sicilian, Najdorf |
| 3. J Peters vs DeFirmian |
| ½-½ | 79 |
1984 |
Ch USA | B90 Sicilian, Najdorf |
| 4. J Benjamin vs DeFirmian |
| 0-1 | 60 |
1984 |
Ch USA | B90 Sicilian, Najdorf |
| 5. K Rogoff vs DeFirmian |
 | 0-1 | 22 |
1985 |
Philadelphia | B90 Sicilian, Najdorf |
| 6. S Hmadi vs DeFirmian |
| 0-1 | 27 |
1985 |
Izt | B90 Sicilian, Najdorf |
| 7. S Bouaziz vs DeFirmian |
| 0-1 | 31 |
1985 |
Izt | B90 Sicilian, Najdorf |
| 8. Kudrin vs DeFirmian |
| 0-1 | 48 |
1986 |
USA-ch | B90 Sicilian, Najdorf |
| 9. Anand vs DeFirmian |
 | 1-0 | 33 |
1986 |
London | B90 Sicilian, Najdorf |
| 10. M Trepp vs DeFirmian |
| 0-1 | 36 |
1986 |
It (cat.7) | B90 Sicilian, Najdorf |
| 11. F Hellers vs DeFirmian |
| 1-0 | 41 |
1986 |
Wijk aan Zee (Netherlands) | B90 Sicilian, Najdorf |
| 12. Kudrin vs DeFirmian |
| ½-½ | 17 |
1987 |
Ch USA | B90 Sicilian, Najdorf |
| 13. A Zapata vs DeFirmian |
| 0-1 | 41 |
1988 |
Bogota (Colombia) | B90 Sicilian, Najdorf |
| 14. Kudrin vs DeFirmian |
| ½-½ | 40 |
1989 |
Ch USA | B90 Sicilian, Najdorf |
| 15. Campora vs DeFirmian |
| 0-1 | 60 |
1989 |
It (open) | B90 Sicilian, Najdorf |
| 16. A Zapata vs DeFirmian |
| 0-1 | 48 |
1989 |
Moscow | B90 Sicilian, Najdorf |
| 17. Chandler vs DeFirmian |
| 1-0 | 63 |
1990 |
Olympiad | B90 Sicilian, Najdorf |
| 18. F Hellers vs DeFirmian |
| ½-½ | 29 |
1990 |
Match (team) | B90 Sicilian, Najdorf |
| 19. N A Hussein vs DeFirmian |
| 0-1 | 47 |
1990 |
Olympiad | B90 Sicilian, Najdorf |
| 20. D Hassapis vs DeFirmian |
| 0-1 | 25 |
1990 |
It (open) | B90 Sicilian, Najdorf |
| 21. Rachels vs DeFirmian |
| ½-½ | 42 |
1990 |
Ch USA | B90 Sicilian, Najdorf |
| 22. V Bach vs DeFirmian |
| 0-1 | 56 |
1993 |
Biel open | B90 Sicilian, Najdorf |
| 23. B Jonsson vs DeFirmian |
| 1-0 | 40 |
1994 |
Akureyri (Iceland) | B90 Sicilian, Najdorf |
| 24. R Gunawan vs DeFirmian |
| 1-0 | 60 |
1994 |
It (open) | B90 Sicilian, Najdorf |
| 25. Stefansson vs DeFirmian |
| ½-½ | 19 |
1994 |
Reykjavik open | B90 Sicilian, Najdorf |
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| page 1 of 3; games 1-25 of 51 |
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Secrets of Opening Surprises
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