| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. K Bischoff vs Suba |
| 0-1 | 36 |
1983 |
Dortmund | A20 English |
| 27. Ivkov vs K Bischoff |
| 1-0 | 29 |
1984 |
Thessaloniki op | A04 Reti Opening |
| 28. Nunn vs K Bischoff |
| 1-0 | 33 |
1984 |
Hamburg | C05 French, Tarrasch |
| 29. K Bischoff vs A Kuligowski |
| ½-½ | 30 |
1984 |
Hamburg op | E61 King's Indian |
| 30. Nunn vs K Bischoff |
| ½-½ | 22 |
1984 |
Tyskland | C05 French, Tarrasch |
| 31. K Bischoff vs J Benjamin |
| ½-½ | 21 |
1985 |
05, Dortmund | A07 King's Indian Attack |
| 32. K Bischoff vs Smyslov |
| ½-½ | 57 |
1985 |
9, Lucerne WTC | C50 Giuoco Piano |
| 33. Groszpeter vs K Bischoff |
| ½-½ | 14 |
1985 |
Budapest Elekes | A41 Queen's Pawn Game (with ...d6) |
| 34. K Bischoff vs Ivkov |
| 1-0 | 40 |
1985 |
Amsterdam op | E11 Bogo-Indian Defense |
| 35. K Bischoff vs Hort |
| 1-0 | 34 |
1985 |
Dortmund | D27 Queen's Gambit Accepted, Classical |
| 36. Zsuzsa Polgar vs K Bischoff |
 | 0-1 | 42 |
1985 |
Dortmund | E24 Nimzo-Indian, Samisch |
| 37. K Bischoff vs Razuvaev |
 | 0-1 | 48 |
1985 |
Dortmund | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 38. K Bischoff vs Suba |
| 1-0 | 40 |
1985 |
Dortmund | E10 Queen's Pawn Game |
| 39. Smejkal vs K Bischoff |
| ½-½ | 73 |
1985 |
Bundesliga 8586 | A07 King's Indian Attack |
| 40. K Bischoff vs I Bilek |
| 1-0 | 54 |
1985 |
Budapest (Hungary) | B07 Pirc |
| 41. K Bischoff vs G Andruet |
| 1-0 | 37 |
1986 |
Dortmund op | E07 Catalan, Closed |
| 42. K Bischoff vs G Milos |
| 0-1 | 33 |
1986 |
Dubai | A25 English |
| 43. K Bischoff vs G Stertenbrink |
| 0-1 | 58 |
1986 |
Bundesliga 8687 | B27 Sicilian |
| 44. Adianto vs K Bischoff |
| 1-0 | 35 |
1986 |
Dubai ol | E10 Queen's Pawn Game |
| 45. Smejkal vs K Bischoff |
| 1-0 | 39 |
1986 |
New York op | E00 Queen's Pawn Game |
| 46. Pinter vs K Bischoff |
| 1-0 | 31 |
1986 |
Olympiad | A61 Benoni |
| 47. Short vs K Bischoff |
| ½-½ | 24 |
1986 |
GER-op | B08 Pirc, Classical |
| 48. Nunn vs K Bischoff |
| 1-0 | 39 |
1986 |
Lugano op | B81 Sicilian, Scheveningen, Keres Attack |
| 49. B Perenyi vs K Bischoff |
| 1-0 | 36 |
1986 |
Budapest Spring op | B80 Sicilian, Scheveningen |
| 50. K Bischoff vs V Tukmakov |
| ½-½ | 20 |
1987 |
Dortmund-A | A28 English |