Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. G Szmacinska vs R Kosc |
| 1-0 | 40 | 1976 | Halle (Women) | A88 Dutch, Leningrad, Main Variation with c6 |
2. R Kosc vs E Richtrova |
| ½-½ | 17 | 1976 | Halle (Women) | C20 King's Pawn Game |
3. A Wagner-Michel vs R Kosc |
| ½-½ | 46 | 1976 | Halle (Women) | B41 Sicilian, Kan |
4. C Kluss vs R Kosc |
| 0-1 | 36 | 1976 | Halle (Women) | B07 Pirc |
5. R Kosc vs B Burchardt |
| 0-1 | 49 | 1976 | Halle (Women) | A02 Bird's Opening |
6. L Jicman vs R Kosc |
| 1-0 | 65 | 1976 | Halle (Women) | B41 Sicilian, Kan |
7. R Kosc vs M Mueller |
| ½-½ | 63 | 1976 | Halle (Women) | B01 Scandinavian |
8. I Winter vs R Kosc |
| 0-1 | 49 | 1976 | Halle (Women) | E10 Queen's Pawn Game |
9. R Kosc vs M Heintze |
| 0-1 | 27 | 1976 | Halle (Women) | B09 Pirc, Austrian Attack |
10. M Porubszky-Angyalosine vs R Kosc |
| 1-0 | 29 | 1976 | Halle (Women) | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
11. R Kosc vs V Kozlovskaya |
| 0-1 | 66 | 1976 | Halle (Women) | A03 Bird's Opening |
12. G Espig vs R Kosc |
| 1-0 | 36 | 1976 | Halle (Women) | A88 Dutch, Leningrad, Main Variation with c6 |
13. R Kosc vs B Borisova |
| ½-½ | 19 | 1976 | Halle (Women) | C05 French, Tarrasch |
14. A Wagner-Michel vs R Kosc |
| 1-0 | 15 | 1979 | Czechoslovakia - East Germany U26 | B42 Sicilian, Kan |
15. R Kosc vs A Wagner-Michel |
| 0-1 | 28 | 1979 | Czechoslovakia - East Germany U26 | A00 Uncommon Opening |
16. R Kosc vs K Eretova |
| ½-½ | 13 | 1983 | CSR-ch (Women) | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
17. M Skacelikova vs R Kosc |
| ½-½ | 50 | 1983 | CSR-ch (Women) | B31 Sicilian, Rossolimo Variation |
18. E Hansen vs R Kosc |
| 1-0 | 50 | 1992 | European Team Championship (Women) | A04 Reti Opening |
19. R Kosc vs M Van Hecke |
| ½-½ | 30 | 1992 | European Team Championship (Women) | B72 Sicilian, Dragon |
20. C Silva vs R Kosc |
| ½-½ | 37 | 1992 | European Team Championship (Women) | A10 English |
21. R Kosc vs D Furmage |
| 1-0 | 32 | 1992 | European Team Championship (Women) | B33 Sicilian |
22. Nancy Fixter vs R Kosc |
| ½-½ | 23 | 1992 | European Team Championship (Women) | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
23. P Kovacic vs R Kosc |
| ½-½ | 11 | 1993 | Velden Open | B30 Sicilian |
24. R Kosc vs D Sermek |
| 0-1 | 41 | 1993 | Velden Open | B45 Sicilian, Taimanov |
25. W Scheitler vs R Kosc |
| 0-1 | 39 | 1993 | Velden Open | A88 Dutch, Leningrad, Main Variation with c6 |