| page 1 of 1; 12 games |
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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S Bjarnason vs DeFirmian |
| 0-1 | 56 |
1973 |
Bunadarbanka (Iceland) | A37 English, Symmetrical |
| 2. M Pein vs DeFirmian |
| 1-0 | 54 |
1984 |
Lloyds Bank op 08th | A37 English, Symmetrical |
| 3. L Karlsson vs DeFirmian |
| 1-0 | 44 |
1985 |
It (cat.11) | A37 English, Symmetrical |
| 4. Ribli vs DeFirmian |
| ½-½ | 14 |
1989 |
Reggio Emilia8990 | A37 English, Symmetrical |
| 5. Ribli vs DeFirmian |
| ½-½ | 14 |
1990 |
Reggio Emilia (Italy) | A37 English, Symmetrical |
| 6. H Teske vs DeFirmian |
| 0-1 | 33 |
1993 |
It (open) | A37 English, Symmetrical |
| 7. B Rind vs DeFirmian |
| 0-1 | 38 |
1993 |
It (open) | A37 English, Symmetrical |
| 8. H Danielsen vs DeFirmian |
| ½-½ | 44 |
1994 |
Akureyri (Iceland) | A37 English, Symmetrical |
| 9. D Norwood vs DeFirmian |
| ½-½ | 41 |
1995 |
It (a) | A37 English, Symmetrical |
| 10. O Bjarnason vs DeFirmian |
| 0-1 | 27 |
2000 |
Reykjavik op19 | A37 English, Symmetrical |
| 11. C C Buhr vs DeFirmian |
| ½-½ | 43 |
2001 |
Bundesliga -2 | A37 English, Symmetrical |
| 12. N Petersen vs DeFirmian |
| 0-1 | 41 |
2005 |
Politiken Cup | A37 English, Symmetrical |
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