| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. S Zinser vs F Galvez Conjiu |
| ½-½ | 40 | 1966 | 6th Costa del Sol | B00 Uncommon King's Pawn Opening |
| 27. O Ulvestad vs S Zinser |
| 0-1 | 66 | 1966 | 6th Costa del Sol | C95 Ruy Lopez, Closed, Breyer |
| 28. Larsen vs S Zinser |
| 1-0 | 33 | 1966 | Le Havre | D11 Queen's Gambit Declined Slav |
| 29. P Rolland vs S Zinser |
| 1-0 | 29 | 1966 | Le Havre | C94 Ruy Lopez, Closed, Breyer Defense |
| 30. S Zinser vs C Boutteville |
| 0-1 | 36 | 1966 | Le Havre | C92 Ruy Lopez, Closed |
| 31. S Zinser vs A Matanovic |
| ½-½ | 43 | 1966 | Le Havre | B06 Robatsch |
| 32. G Mazzoni vs S Zinser |
| 1-0 | 33 | 1966 | Le Havre | C92 Ruy Lopez, Closed |
| 33. S Zinser vs Polugaevsky |
| 0-1 | 28 | 1966 | Le Havre | B42 Sicilian, Kan |
| 34. Forintos vs S Zinser |
| 1-0 | 63 | 1966 | Le Havre | D97 Grunfeld, Russian |
| 35. S Zinser vs M Roos |
| 0-1 | 42 | 1966 | Le Havre | B28 Sicilian, O'Kelly Variation |
| 36. A Dueckstein vs S Zinser |
| 1-0 | 50 | 1966 | Le Havre | C92 Ruy Lopez, Closed |
| 37. S Zinser vs N Krogius |
| 0-1 | 39 | 1966 | Le Havre | B45 Sicilian, Taimanov |
| 38. S Zinser vs Bobotsov |
| 0-1 | 33 | 1966 | Le Havre | B09 Pirc, Austrian Attack |
| 39. J Enevoldsen vs S Zinser |
| ½-½ | 105 | 1966 | Havana Olympiad qual-4 | B40 Sicilian |
| 40. S Zinser vs R Sanguineti |
| ½-½ | 20 | 1966 | Havana Olympiad qual-4 | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 41. B Carrasco Araya vs S Zinser |
| 0-1 | 42 | 1966 | Havana Olympiad qual-4 | D95 Grunfeld |
| 42. N Littlewood vs S Zinser |
| ½-½ | 47 | 1966 | Havana Olympiad qual-4 | D97 Grunfeld, Russian |
| 43. C Pritchett vs S Zinser |
| 1-0 | 25 | 1966 | Havana Olympiad Final-B | B49 Sicilian, Taimanov Variation |
| 44. S Zinser vs H Ree |
| ½-½ | 34 | 1966 | Havana Olympiad Final-B | E70 King's Indian |
| 45. S Zinser vs Z Nilsson |
| 0-1 | 40 | 1966 | Havana Olympiad Final-B | A88 Dutch, Leningrad, Main Variation with c6 |
| 46. F Winiwarter vs S Zinser |
| 1-0 | 54 | 1966 | Havana Olympiad Final-B | C91 Ruy Lopez, Closed |
| 47. S Zinser vs B De Greiff |
| ½-½ | 44 | 1966 | Havana Olympiad Final-B | E75 King's Indian, Averbakh, Main line |
| 48. S Zinser vs M Blau |
| 0-1 | 37 | 1966 | Havana Olympiad Final-B | B62 Sicilian, Richter-Rauzer |
| 49. Westerinen vs S Zinser |
| 1-0 | 57 | 1966 | Havana Olympiad Final-B | B44 Sicilian |
| 50. S Zinser vs J Kostro |
| ½-½ | 35 | 1966 | Havana Olympiad Final-B | D14 Queen's Gambit Declined Slav, Exchange Variation |
Kibitzing
