Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. H Cordes vs S Heil |
| ½-½ | 37 | 1982 | Bundesliga 1981/82 | A92 Dutch |
27. H Cordes vs H Pfleger |
| 0-1 | 31 | 1982 | Bundesliga 1981/82 | D02 Queen's Pawn Game |
28. A Westermeier vs H Cordes |
| ½-½ | 53 | 1982 | Bundesliga 1981/82 | B01 Scandinavian |
29. O Borik vs H Cordes |
| 0-1 | 50 | 1982 | Bundesliga 1981/82 | D37 Queen's Gambit Declined |
30. H Cordes vs R Lau |
| ½-½ | 31 | 1982 | Bundesliga 1981/82 | A47 Queen's Indian |
31. H Bastian vs H Cordes |
| 1-0 | 34 | 1983 | Bundesliga 1983/84 | B25 Sicilian, Closed |
32. Spassky vs H Cordes |
| 1-0 | 29 | 1984 | Bundesliga 1983/84 | B94 Sicilian, Najdorf |
33. H Cordes vs T Horvath |
| 1-0 | 32 | 1984 | Hamburg Schachfestival | E21 Nimzo-Indian, Three Knights |
34. M Juergensen vs H Cordes |
| 0-1 | 46 | 1984 | Hamburg Schachfestival | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
35. H Cordes vs R Lau |
| ½-½ | 37 | 1984 | Hamburg Schachfestival | D90 Grunfeld |
36. D Donchev vs H Cordes |
| ½-½ | 41 | 1984 | Hamburg Schachfestival | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
37. G Tringov vs H Cordes |
| 1-0 | 30 | 1984 | Hamburg Schachfestival | B90 Sicilian, Najdorf |
38. H Cordes vs K Bischoff |
| 0-1 | 23 | 1984 | Hamburg Schachfestival | A41 Queen's Pawn Game (with ...d6) |
39. H Cordes vs Miles |
 | 1-0 | 36 | 1985 | Bad Woerishofen Open | E21 Nimzo-Indian, Three Knights |
40. R Maric vs H Cordes |
| 1-0 | 42 | 1985 | Bad Woerishofen Open | B22 Sicilian, Alapin |
41. H Cordes vs Kasparov |
  | 1-0 | 53 | 1985 | Simul, 8b | D44 Queen's Gambit Declined Semi-Slav |
42. H Cordes vs R Rabiega |
| ½-½ | 35 | 1986 | Bundesliga 1986/87 | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
43. H Cordes vs Wilfried Wilhelm Hilgert |
| 1-0 | 23 | 1986 | Bundesliga 1985/86 | D02 Queen's Pawn Game |
44. Kasparov vs H Cordes |
  | 1-0 | 34 | 1987 | Kasparov Simul, 8b Hamburg | D38 Queen's Gambit Declined, Ragozin Variation |
45. C Baesler vs H Cordes |
| ½-½ | 17 | 1991 | Oberliga Hessen | C00 French Defense |
46. H Cordes vs J Ambroz |
| 0-1 | 42 | 1992 | BL2-W 9293 | E32 Nimzo-Indian, Classical |
47. H Cordes vs D Borensztajn |
 | 1-0 | 28 | 2000 | EM/M/A091 | A80 Dutch |
48. H Cordes vs Chee Keong Mark Chan |
| 1-0 | 15 | 2000 | EM/M/A091 | C13 French |
49. H Cordes vs O Cvitan |
| 0-1 | 30 | 2014 | Bavarian Open | E32 Nimzo-Indian, Classical |
50. Rozentalis vs H Cordes |
| 1-0 | 48 | 2014 | Bavarian Open | C03 French, Tarrasch |