| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. V Inkiov vs K Kojder |
| 1-0 | 49 | 1980 | Makarczyk Memorial | E12 Queen's Indian |
| 27. K Kojder vs H Dobosz |
| ½-½ | 19 | 1980 | Makarczyk Memorial | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 28. K Kojder vs B Rogulj |
| 1-0 | 45 | 1980 | Makarczyk Memorial | A79 Benoni, Classical, 11.f3 |
| 29. A V Kharitonov vs K Kojder |
| 1-0 | 41 | 1980 | Makarczyk Memorial | A14 English |
| 30. K Kojder vs I Farago |
| 0-1 | 36 | 1980 | Makarczyk Memorial | C05 French, Tarrasch |
| 31. J Adamski vs K Kojder |
| ½-½ | 25 | 1980 | Makarczyk Memorial | E15 Queen's Indian |
| 32. K Kojder vs M Tseitlin |
| 0-1 | 48 | 1980 | Makarczyk Memorial | A87 Dutch, Leningrad, Main Variation |
| 33. W Schmidt vs K Kojder |
| ½-½ | 45 | 1980 | Makarczyk Memorial | D55 Queen's Gambit Declined |
| 34. K Kojder vs N Kirov |
| 1-0 | 40 | 1980 | Makarczyk Memorial | B44 Sicilian |
| 35. K Kojder vs A Szypulski |
| ½-½ | 18 | 1984 | Czestochowa | E15 Queen's Indian |
| 36. K Kojder vs P Staniszewski |
| ½-½ | 12 | 1985 | Polish Championship | A45 Queen's Pawn Game |
| 37. J Pokojowczyk vs K Kojder |
| ½-½ | 18 | 1985 | Polish Championship | B00 Uncommon King's Pawn Opening |
| 38. K Kojder vs Z Jasnikowski |
| ½-½ | 27 | 1985 | Polish Championship | E92 King's Indian |
| 39. Z Szymczak vs K Kojder |
| ½-½ | 10 | 1985 | Polish Championship | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 40. K Kojder vs K Zolnierowicz |
| ½-½ | 14 | 1985 | Polish Championship | A46 Queen's Pawn Game |
| 41. J Bany vs K Kojder |
| 1-0 | 44 | 1985 | Polish Championship | E18 Queen's Indian, Old Main line, 7.Nc3 |
| 42. K Kojder vs A Sygulski |
| ½-½ | 49 | 1985 | Polish Championship | A45 Queen's Pawn Game |
| 43. I Nowak vs K Kojder |
| ½-½ | 32 | 1985 | Polish Championship | E17 Queen's Indian |
| 44. K Kojder vs K Pytel |
| ½-½ | 43 | 1985 | Polish Championship | E20 Nimzo-Indian |
| 45. A Cichocki vs K Kojder |
| ½-½ | 14 | 1985 | Polish Championship | B20 Sicilian |
| 46. K Kojder vs R Tomaszewski |
| ½-½ | 28 | 1985 | Polish Championship | D00 Queen's Pawn Game |
| 47. J Adamski vs K Kojder |
  | 1-0 | 2 | 1985 | Polish Championship | A40 Queen's Pawn Game |
| 48. K Kojder vs S Dejkalo |
| 0-1 | 56 | 1985 | Polish Championship | A45 Queen's Pawn Game |
| 49. K Kojder vs R Kuczynski |
| ½-½ | 44 | 1985 | Polish Championship | A67 Benoni, Taimanov Variation |
| 50. B Sygulski vs K Kojder |
| ½-½ | 14 | 1985 | Polish Championship | E32 Nimzo-Indian, Classical |
Kibitzing
