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| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. N Spiridonov vs B Gurgenidze |
| 0-1 | 41 | 1969 | Goglidze Memorial 1969/70 | A30 English, Symmetrical |
| 2. N Spiridonov vs C Pritchett |
| 1-0 | 46 | 1975 | Primat 5th | A30 English, Symmetrical |
| 3. N Spiridonov vs P Szekely |
| ½-½ | 51 | 1976 | Budapest Tungsram | A30 English, Symmetrical |
| 4. N Spiridonov vs W Schinzel |
| 1-0 | 45 | 1979 | Rubinstein Memorial | A30 English, Symmetrical |
| 5. N Spiridonov vs K Stefanov |
| ½-½ | 36 | 1981 | Bulgarian Championship | A30 English, Symmetrical |
| 6. N Spiridonov vs B Brinck-Claussen |
| ½-½ | 37 | 1983 | EUR-chT (Men) 8th | A30 English, Symmetrical |
| 7. N Spiridonov vs Nikolov |
| ½-½ | 31 | 1984 | Kamen Piskov Memorial | A30 English, Symmetrical |
| 8. N Spiridonov vs Z Gunev |
| ½-½ | 42 | 1984 | Kamen Piskov Memorial | A30 English, Symmetrical |
| 9. N Spiridonov vs V Eingorn |
| ½-½ | 18 | 1984 | Rubinstein Memorial | A30 English, Symmetrical |
| 10. N Spiridonov vs T Manouck |
| ½-½ | 17 | 1985 | BUL-FRA | A30 English, Symmetrical |
| 11. N Spiridonov vs J Ayombo |
| 1-0 | 44 | 1990 | Toulouse Open | A30 English, Symmetrical |
| 12. N Spiridonov vs A Sokolov |
| ½-½ | 19 | 1991 | Torcy Open-A | A30 English, Symmetrical |
| 13. N Spiridonov vs S Shipov |
| 0-1 | 45 | 1995 | Paris op | A30 English, Symmetrical |
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Kibitzing
