| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. H Rittner vs Simagin |
 | 1-0 | 45 |
1966 |
corr-1 | B62 Sicilian, Richter-Rauzer |
| 2. H Rittner vs V Kornfilt |
| 1-0 | 41 |
1968 |
5.corr ol | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 3. H Rittner vs Estrin |
 | 1-0 | 27 |
1968 |
6th Correspondence World Championship Final | D92 Grunfeld, 5.Bf4 |
| 4. H Rittner vs H W Duenhaupt |
| ½-½ | 66 |
1968 |
5.corr ol | B25 Sicilian, Closed |
| 5. H Rittner vs D Stern |
| 1-0 | 37 |
1968 |
6th Correspondence World Championship Final | B64 Sicilian, Richter-Rauzer Attack |
| 6. N Karker vs H Rittner |
| 0-1 | 39 |
1968 |
6th Correspondence World Championship Final | B82 Sicilian, Scheveningen |
| 7. H Rittner vs S Bernstein |
 | 1-0 | 54 |
1968 |
5.corr ol | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 8. H Rittner vs R Kauranen |
| ½-½ | 50 |
1968 |
6th Correspondence World Championship Final | B69 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 11.Bxf6 |
| 9. V Zagorovsky vs H Rittner |
| ½-½ | 19 |
1968 |
5.corr ol | C09 French, Tarrasch, Open Variation, Main line |
| 10. H Rittner vs E Thiele |
| 1-0 | 55 |
1968 |
6th Correspondence World Championship Final | A13 English |
| 11. S Aarseth vs H Rittner |
 | 0-1 | 14 |
1968 |
6th Correspondence World Championship Final | C17 French, Winawer, Advance |
| 12. H Rittner vs J Kellner |
| 1-0 | 47 |
1968 |
5.corr ol | C03 French, Tarrasch |
| 13. H Rittner vs J Kellner |
| 1-0 | 50 |
1968 |
6th Correspondence World Championship Final | C03 French, Tarrasch |
| 14. J Snajdr vs H Rittner |
| 1-0 | 21 |
1968 |
5.corr ol | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 15. Sevecek vs H Rittner |
| ½-½ | 42 |
1968 |
6th Correspondence World Championship Final | C18 French, Winawer |
| 16. S Nyman vs H Rittner |
 | 0-1 | 53 |
1968 |
6th Correspondence World Championship Final | C18 French, Winawer |
| 17. Fazekas vs H Rittner |
 | 1-0 | 32 |
1968 |
5.corr ol | A17 English |
| 18. H Rittner vs J Ljungdahl |
| 1-0 | 28 |
1968 |
6th Correspondence World Championship Final | B48 Sicilian, Taimanov Variation |
| 19. Hybl vs H Rittner |
| ½-½ | 15 |
1968 |
6th Correspondence World Championship Final | E53 Nimzo-Indian, 4.e3 |
| 20. H Rittner vs Simagin |
 | 0-1 | 38 |
1968 |
corr | B88 Sicilian, Fischer-Sozin Attack |
| 21. V Zagorovsky vs H Rittner |
| ½-½ | 24 |
1968 |
6th Correspondence World Championship Final | C18 French, Winawer |
| 22. H Rittner vs H De Carbonnel |
 | 1-0 | 39 |
1968 |
6th Correspondence World Championship Final | C82 Ruy Lopez, Open |
| 23. E Arnlind vs H Rittner |
| ½-½ | 29 |
1968 |
5.corr ol | C18 French, Winawer |
| 24. H Rittner vs G Sanakoev |
| ½-½ | 38 |
1968 |
6th Correspondence World Championship Final | B83 Sicilian |
| 25. C Jansen vs H Rittner |
 | 0-1 | 28 |
1968 |
6th Correspondence World Championship Final | E53 Nimzo-Indian, 4.e3 |