| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Bruno Ullrich vs W Pietzsch |
| 0-1 | 28 |
1950 |
DDR-ch 01st | E38 Nimzo-Indian, Classical, 4...c5 |
| 2. S Szabo vs W Pietzsch |
| 0-1 | 52 |
1951 |
Bucharest GMT 2nd | B30 Sicilian |
| 3. W Pietzsch vs V Rathai |
| 1-0 | 30 |
1951 |
Schwerin | B88 Sicilian, Fischer-Sozin Attack |
| 4. W Pietzsch vs K Knothe |
| 1-0 | 44 |
1951 |
Schwerin | B88 Sicilian, Fischer-Sozin Attack |
| 5. K Makarczyk vs W Pietzsch |
| ½-½ | 34 |
1951 |
Bucharest GMT 2nd | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 6. A Otto vs W Pietzsch |
| 0-1 | 34 |
1951 |
Schwerin | B88 Sicilian, Fischer-Sozin Attack |
| 7. Prins vs W Pietzsch |
| 0-1 | 34 |
1952 |
Helsinki ol | C27 Vienna Game |
| 8. W Pietzsch vs K Plater |
| ½-½ | 41 |
1952 |
Helsinki ol (Men) | B70 Sicilian, Dragon Variation |
| 9. W Pietzsch vs Stoltz |
| 0-1 | 41 |
1952 |
Helsinki ol (Men) | C18 French, Winawer |
| 10. W Pietzsch vs J C Gonzalez |
| 1-0 | 40 |
1952 |
Helsinki ol (Men) | B90 Sicilian, Najdorf |
| 11. M Oren vs W Pietzsch |
 | 1-0 | 42 |
1952 |
Helsinki ol (Men) | E17 Queen's Indian |
| 12. G Barcza vs W Pietzsch |
| ½-½ | 75 |
1952 |
Helsinki ol (Men) | A34 English, Symmetrical |
| 13. Milner-Barry vs W Pietzsch |
| ½-½ | 40 |
1952 |
Helsinki ol (Men) | C47 Four Knights |
| 14. W Pietzsch vs A Beni |
| ½-½ | 58 |
1952 |
Helsinki ol (Men) | C73 Ruy Lopez, Modern Steinitz Defense |
| 15. W Pietzsch vs E Myhre |
| 1-0 | 59 |
1952 |
Helsinki ol (Men) | C65 Ruy Lopez, Berlin Defense |
| 16. W Pietzsch vs P M Nielsen |
| ½-½ | 36 |
1952 |
Helsinki ol (Men) | B57 Sicilian |
| 17. B Rabar vs W Pietzsch |
| 1-0 | 30 |
1952 |
Helsinki ol (Men) | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 18. J de Souza Mendes vs W Pietzsch |
| ½-½ | 41 |
1952 |
Helsinki ol (Men) | B63 Sicilian, Richter-Rauzer Attack |
| 19. V Nestler vs W Pietzsch |
| 0-1 | 41 |
1952 |
Helsinki ol (Men) | A49 King's Indian, Fianchetto without c4 |
| 20. W Pietzsch vs V Nestler |
| 0-1 | 46 |
1952 |
Helsinki ol (Men) | B80 Sicilian, Scheveningen |
| 21. K Poschauko vs W Pietzsch |
| 0-1 | 37 |
1952 |
Helsinki ol (Men) | A07 King's Indian Attack |
| 22. Petrosian vs W Pietzsch |
| 1-0 | 60 |
1958 |
13th olm final A | E14 Queen's Indian |
| 23. W Pietzsch vs B Djurasevic |
| 0-1 | 40 |
1958 |
13th olm final A | B94 Sicilian, Najdorf |
| 24. W Pietzsch vs E Nievergelt |
 | 1-0 | 42 |
1958 |
13th olm final A | B62 Sicilian, Richter-Rauzer |
| 25. J Kostro vs W Pietzsch |
 | 1-0 | 21 |
1958 |
13th olm qual. group 3 | C78 Ruy Lopez |