| page 1 of 3; games 1-25 of 58 |
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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. DeFirmian vs Silman |
 | 0-1 | 35 |
1976 |
Lone Pine (USA) | C92 Ruy Lopez, Closed |
| 2. DeFirmian vs P Nikolic |
| 0-1 | 39 |
1980 |
Olympiad | C92 Ruy Lopez, Closed |
| 3. DeFirmian vs S Djuric |
| ½-½ | 41 |
1983 |
It ( cat. 10 ) | C97 Ruy Lopez, Closed, Chigorin |
| 4. DeFirmian vs Z Nikolic |
| ½-½ | 23 |
1983 |
Vrnjachka Banja (Yugoslavia) | C98 Ruy Lopez, Closed, Chigorin |
| 5. DeFirmian vs Smejkal |
| ½-½ | 59 |
1983 |
It (cat.10) | C95 Ruy Lopez, Closed, Breyer |
| 6. DeFirmian vs Hjartarson |
| 0-1 | 69 |
1984 |
Reykjavik (Iceland) | C92 Ruy Lopez, Closed |
| 7. DeFirmian vs J L Arnason |
 | 0-1 | 59 |
1984 |
Oslo (Norway) | C96 Ruy Lopez, Closed |
| 8. DeFirmian vs Jansa |
| ½-½ | 13 |
1984 |
Bor (07) | C84 Ruy Lopez, Closed |
| 9. DeFirmian vs Ivkov |
| 0-1 | 50 |
1984 |
09 | C96 Ruy Lopez, Closed |
| 10. DeFirmian vs P Nikolic |
 | 1-0 | 37 |
1985 |
Tunis | C92 Ruy Lopez, Closed |
| 11. DeFirmian vs Beliavsky |
| 0-1 | 40 |
1985 |
Izt | C92 Ruy Lopez, Closed |
| 12. DeFirmian vs H Ree |
| 0-1 | 62 |
1986 |
Wijk aan Zee (Netherlands) | C90 Ruy Lopez, Closed |
| 13. DeFirmian vs Christiansen |
| ½-½ | 46 |
1986 |
USA-ch | C92 Ruy Lopez, Closed |
| 14. DeFirmian vs P Nikolic |
| 0-1 | 52 |
1986 |
Reykjavik (Iceland) | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 15. DeFirmian vs S Djuric |
| ½-½ | 18 |
1987 |
Ch USA | C93 Ruy Lopez, Closed, Smyslov Defense |
| 16. DeFirmian vs Granda-Zuniga |
| 1-0 | 43 |
1987 |
New York (USA) | C92 Ruy Lopez, Closed |
| 17. DeFirmian vs Beliavsky |
 | 1-0 | 61 |
1988 |
Olympiad | C95 Ruy Lopez, Closed, Breyer |
| 18. DeFirmian vs A Ivanov |
| 0-1 | 60 |
1988 |
Chicago (USA) | C92 Ruy Lopez, Closed |
| 19. DeFirmian vs J Benjamin |
| 1-0 | 31 |
1988 |
Ch USA | C92 Ruy Lopez, Closed |
| 20. DeFirmian vs E Torre |
| ½-½ | 39 |
1989 |
It (open) | C96 Ruy Lopez, Closed |
| 21. DeFirmian vs A Ivanov |
| ½-½ | 46 |
1989 |
San | C92 Ruy Lopez, Closed |
| 22. DeFirmian vs G Crawley |
| 1-0 | 40 |
1989 |
It (open) | C89 Ruy Lopez, Marshall |
| 23. DeFirmian vs A Ivanov |
| 0-1 | 48 |
1989 |
Las Vegas (USA) | C92 Ruy Lopez, Closed |
| 24. DeFirmian vs Karpov |
| ½-½ | 14 |
1989 |
Reggio Emilia 8990 | C92 Ruy Lopez, Closed |
| 25. DeFirmian vs I Sokolov |
 | ½-½ | 28 |
1989 |
It (open) | C89 Ruy Lopez, Marshall |
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| page 1 of 3; games 1-25 of 58 |
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Secrets of Opening Surprises
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