| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Lautier vs D Kosic |
| 1-0 | 43 | 1988 | World Junior Championship | E91 King's Indian |
| 27. Y Rantanen vs D Kosic |
| ½-½ | 32 | 1988 | GMA-JAT Open | B83 Sicilian |
| 28. D Kosic vs Plachetka |
| ½-½ | 40 | 1989 | Bohemians | A58 Benko Gambit |
| 29. C Hansen vs D Kosic |
| 1-0 | 40 | 1989 | Bohemians | E62 King's Indian, Fianchetto |
| 30. D Kosic vs J Polasek |
| ½-½ | 57 | 1989 | Bohemians | A84 Dutch |
| 31. D Kosic vs P Haba |
| ½-½ | 54 | 1989 | Bohemians | A84 Dutch |
| 32. V Chekhov vs D Kosic |
| ½-½ | 60 | 1989 | Bohemians | D30 Queen's Gambit Declined |
| 33. A Arandjelovic vs D Kosic |
| 0-1 | 35 | 1989 | Caorle Open | B81 Sicilian, Scheveningen, Keres Attack |
| 34. L Riemersma vs D Kosic |
| ½-½ | 13 | 1989 | Caorle Open | B42 Sicilian, Kan |
| 35. D Kosic vs J Portenier |
| 1-0 | 42 | 1989 | Caorle Open | E11 Bogo-Indian Defense |
| 36. D Kosic vs V V Kostic |
| 0-1 | 47 | 1989 | Caorle Open | D34 Queen's Gambit Declined, Tarrasch |
| 37. A Guerra vs D Kosic |
| 1-0 | 43 | 1989 | Caorle Open | B20 Sicilian |
| 38. C Zechner vs D Kosic |
| 0-1 | 23 | 1989 | Caorle Open | D32 Queen's Gambit Declined, Tarrasch |
| 39. D Kosic vs K Kluss |
| 1-0 | 43 | 1989 | Caorle Open | A61 Benoni |
| 40. B Filipovic vs D Kosic |
| 1-0 | 24 | 1989 | Caorle Open | C00 French Defense |
| 41. D Kosic vs A Kovacevic |
| ½-½ | 42 | 1990 | Pula tt2 | A49 King's Indian, Fianchetto without c4 |
| 42. D Kosic vs M Lazic |
| 1-0 | 40 | 1990 | San Benedetto op | D11 Queen's Gambit Declined Slav |
| 43. G Cabrilo vs D Kosic |
| 0-1 | 40 | 1990 | Yugoslav Championship | B58 Sicilian |
| 44. D Kosic vs B Ivanovic |
| ½-½ | 15 | 1990 | Yugoslav Championship | E62 King's Indian, Fianchetto |
| 45. Z Kozul vs D Kosic |
| ½-½ | 48 | 1990 | Yugoslav Championship | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 46. D Kosic vs G M Todorovic |
| ½-½ | 15 | 1990 | Yugoslav Championship | D35 Queen's Gambit Declined |
| 47. Gligoric vs D Kosic |
| 0-1 | 41 | 1990 | Yugoslav Championship | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 48. D Kosic vs Velimirovic |
| 0-1 | 48 | 1990 | Yugoslav Championship | A15 English |
| 49. S Cvetkovic vs D Kosic |
| ½-½ | 8 | 1990 | Yugoslav Championship | D15 Queen's Gambit Declined Slav |
| 50. D Kosic vs G Dizdar |
| 1-0 | 80 | 1990 | Yugoslav Championship | E01 Catalan, Closed |
Kibitzing
