| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. H Kummer vs R Kosc |
| ½-½ | 20 | 1993 | Velden Open | B32 Sicilian |
| 27. R Kosc vs P Popovic |
| 0-1 | 40 | 1993 | Velden Open | B57 Sicilian |
| 28. R Kosc vs E Lanni |
| ½-½ | 12 | 1993 | Velden Open | B33 Sicilian |
| 29. A Balaian vs R Kosc |
| 1-0 | 31 | 2016 | European Club Cup (Women) | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 30. L Markelova vs R Kosc |
| ½-½ | 46 | 2016 | European Club Cup (Women) | A80 Dutch |
| 31. R Kosc vs S Vardi |
| 0-1 | 36 | 2016 | European Club Cup (Women) | B09 Pirc, Austrian Attack |
| 32. R Kosc vs P Shuvalova |
| 0-1 | 32 | 2016 | European Club Cup (Women) | A03 Bird's Opening |
| 33. M Manelidou vs R Kosc |
| 1-0 | 36 | 2016 | European Club Cup (Women) | B31 Sicilian, Rossolimo Variation |
| 34. R Messina vs R Kosc |
| 0-1 | 41 | 2016 | European Club Cup (Women) | B20 Sicilian |
| 35. R Kosc vs S Prudnikova |
| 0-1 | 50 | 2016 | European Club Cup (Women) | B31 Sicilian, Rossolimo Variation |
| 36. A Stefanova vs R Kosc |
| 1-0 | 31 | 2017 | ch-EUR Women Rapid | A81 Dutch |
| 37. J Steindl vs R Kosc |
| 1-0 | 34 | 2021 | Austrian Bundesliga | B72 Sicilian, Dragon |
| 38. R Kosc vs J Webersberger |
| 0-1 | 36 | 2021 | Austrian Bundesliga | A00 Uncommon Opening |
| 39. A Saric vs R Kosc |
| 1-0 | 32 | 2021 | Austrian Bundesliga | A04 Reti Opening |
| 40. P Schreiner vs R Kosc |
| 1-0 | 31 | 2021 | Austrian Bundesliga | A88 Dutch, Leningrad, Main Variation with c6 |
| 41. R Kosc vs S Tica |
| 0-1 | 25 | 2021 | Austrian Bundesliga | B06 Robatsch |
| 42. G Nagy vs R Kosc |
| 1-0 | 28 | 2021 | Austrian Bundesliga | A80 Dutch |
| 43. R Kosc vs J Steindl |
| 0-1 | 49 | 2022 | Austrian Bundesliga 2021/22 | C17 French, Winawer, Advance |
| 44. H Amann vs R Kosc |
| 0-1 | 46 | 2022 | Austrian Bundesliga 2021/22 | A80 Dutch |
| 45. R Kosc vs I Neyman |
| 0-1 | 41 | 2022 | Austrian Bundesliga 2021/22 | B41 Sicilian, Kan |
| 46. M Gerhold vs R Kosc |
| 1-0 | 39 | 2022 | Austrian Bundesliga 2021/22 | A80 Dutch |
| 47. R Kosc vs D Atlas |
| 0-1 | 37 | 2022 | Austrian Bundesliga 2021/22 | C17 French, Winawer, Advance |
Kibitzing
