| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Knaak vs L Zinn |
| 0-1 | 35 | 1969 | DSV Tournament | A42 Modern Defense, Averbakh System |
| 2. Knaak vs W Golz |
| 1-0 | 56 | 1969 | DSV Tournament | E88 King's Indian, Samisch, Orthodox, 7.d5 c6 |
| 3. M Schoeneberg vs Knaak |
| 1-0 | 41 | 1969 | DSV Tournament | A10 English |
| 4. L Espig vs Knaak |
| ½-½ | 59 | 1969 | DSV Tournament | B06 Robatsch |
| 5. J Boudy Bueno vs Knaak |
| 1-0 | 34 | 1969 | DSV Tournament | B00 Uncommon King's Pawn Opening |
| 6. Knaak vs M Vukic |
| ½-½ | 30 | 1969 | DSV Tournament | E83 King's Indian, Samisch |
| 7. Knaak vs B Malich |
| 0-1 | 40 | 1969 | DSV Tournament | E41 Nimzo-Indian |
| 8. C Radovici vs Knaak |
| 1-0 | 34 | 1969 | DSV Tournament | B00 Uncommon King's Pawn Opening |
| 9. Knaak vs G Moehring |
| 1-0 | 28 | 1969 | DSV Tournament | D50 Queen's Gambit Declined |
| 10. L Mista vs Knaak |
| ½-½ | 31 | 1969 | DSV Tournament | A10 English |
| 11. Knaak vs A Sydor |
| 0-1 | 32 | 1969 | DSV Tournament | E29 Nimzo-Indian, Samisch |
| 12. L Vogt vs Knaak |
| 0-1 | 40 | 1969 | DSV Tournament | C45 Scotch Game |
| 13. Knaak vs L M Kovacs |
| 1-0 | 87 | 1969 | DSV Tournament | D55 Queen's Gambit Declined |
| 14. Knaak vs G Walter |
| 1-0 | 41 | 1970 | East German Championship | D50 Queen's Gambit Declined |
| 15. G Lorenz vs Knaak |
| 0-1 | 34 | 1970 | East German Championship | A00 Uncommon Opening |
| 16. H Liebert vs Knaak |
| 1-0 | 62 | 1970 | East German Championship | E62 King's Indian, Fianchetto |
| 17. Knaak vs D Neukirch |
| 0-1 | 23 | 1970 | East German Championship | E43 Nimzo-Indian, Fischer Variation |
| 18. L Vogt vs Knaak |
| 1-0 | 22 | 1970 | East German Championship | B06 Robatsch |
| 19. G Moehring vs Knaak |
| 1-0 | 41 | 1970 | East German Championship | B00 Uncommon King's Pawn Opening |
| 20. Knaak vs F Baumbach |
| 0-1 | 36 | 1970 | East German Championship | D32 Queen's Gambit Declined, Tarrasch |
| 21. Knaak vs H Darius |
| 1-0 | 92 | 1970 | East German Championship | E82 King's Indian, Samisch, double Fianchetto Variation |
| 22. J Brueggemann vs Knaak |
| 0-1 | 39 | 1970 | East German Championship | A26 English |
| 23. R Postler vs Knaak |
| ½-½ | 42 | 1970 | East German Championship | B00 Uncommon King's Pawn Opening |
| 24. Knaak vs H Brameyer |
| 0-1 | 40 | 1970 | East German Championship | E41 Nimzo-Indian |
| 25. Knaak vs E Geissert |
| ½-½ | 45 | 1970 | East German Championship | D13 Queen's Gambit Declined Slav, Exchange Variation |
Kibitzing
