| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. R Silva Nazzari vs A Zwaig |
| 1-0 | 45 | 1964 | Tel Aviv Olympiad Final-B | B07 Pirc |
| 27. A Zwaig vs M Fallone |
| 0-1 | 42 | 1964 | Tel Aviv Olympiad Final-B | D02 Queen's Pawn Game |
| 28. J Sumar vs A Zwaig |
| 0-1 | 79 | 1964 | Tel Aviv Olympiad Final-B | A05 Reti Opening |
| 29. A Zwaig vs K Blom |
| ½-½ | 41 | 1964 | Tel Aviv Olympiad Final-B | B20 Sicilian |
| 30. A Zwaig vs M Schoeneberg |
| 0-1 | 28 | 1965 | Wch U20 f-A | D01 Richter-Veresov Attack |
| 31. S Bouaziz vs A Zwaig |
| 0-1 | 37 | 1965 | Wch U20 q-3 | C84 Ruy Lopez, Closed |
| 32. R Hartoch vs A Zwaig |
| ½-½ | 41 | 1965 | Wch U20 f-A | B09 Pirc, Austrian Attack |
| 33. E Weissbacher vs A Zwaig |
| ½-½ | 27 | 1965 | Wch U20 q-3 | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 34. A Zwaig vs L Gonzales Mestres |
| 1-0 | 48 | 1965 | Wch U20 q-3 | A00 Uncommon Opening |
| 35. I Farago vs A Zwaig |
| 1-0 | 40 | 1965 | Wch U20 f-A | D92 Grunfeld, 5.Bf4 |
| 36. A Zwaig vs L Bronstein |
| 0-1 | 49 | 1965 | Wch U20 f-A | C50 Giuoco Piano |
| 37. E Simon vs A Zwaig |
| 0-1 | 64 | 1965 | Wch U20 f-A | B08 Pirc, Classical |
| 38. A Zwaig vs P M Jamieson |
| ½-½ | 45 | 1965 | Wch U20 q-3 | E64 King's Indian, Fianchetto, Yugoslav System |
| 39. A Zwaig vs Tukmakov |
| 1-0 | 29 | 1965 | Wch U20 f-A | B92 Sicilian, Najdorf, Opocensky Variation |
| 40. Huebner vs A Zwaig |
| 0-1 | 33 | 1965 | Wch U20 f-A | C95 Ruy Lopez, Closed, Breyer |
| 41. A Zwaig vs B Kurajica |
| ½-½ | 24 | 1965 | Wch U20 f-A | A07 King's Indian Attack |
| 42. A Zwaig vs Y Bleiman |
| 1-0 | 28 | 1965 | Wch U20 f-A | B32 Sicilian |
| 43. A A Rocha vs A Zwaig |
| 0-1 | 41 | 1966 | Havana Olympiad qual-3 | C70 Ruy Lopez |
| 44. A Zwaig vs Y Kraidman |
| 0-1 | 48 | 1966 | Havana Olympiad qual-3 | C54 Giuoco Piano |
| 45. Z Doda vs A Zwaig |
| 1-0 | 42 | 1966 | Havana Olympiad qual-3 | D78 Neo-Grunfeld, 6.O-O c6 |
| 46. A Zwaig vs G Martinez Vaca |
 | 1-0 | 34 | 1966 | Havana Olympiad qual-3 | C78 Ruy Lopez |
| 47. A Cevallos vs A Zwaig |
| 0-1 | 35 | 1966 | Havana Olympiad qual-3 | A56 Benoni Defense |
| 48. A Zwaig vs R Byrne |
| ½-½ | 42 | 1966 | Havana Olympiad qual-3 | B23 Sicilian, Closed |
| 49. A Zwaig vs Gligoric |
| 0-1 | 40 | 1966 | Havana Olympiad Final-A | A07 King's Indian Attack |
| 50. A Zwaig vs Szabo |
| 0-1 | 27 | 1966 | Havana Olympiad Final-A | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
Kibitzing
