| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Fischer vs Portisch |
  | 1-0 | 34 | 1966 | Havana Olympiad Final-A | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 27. Fischer vs Gligoric |
| 1-0 | 25 | 1966 | Havana Olympiad Final-A | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 28. Fischer vs E Jimenez Zerquera |
| 1-0 | 31 | 1966 | Havana Olympiad Final-A | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 29. O'Kelly vs Robatsch |
| ½-½ | 19 | 1966 | Palma de Mallorca | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 30. D Ciric vs K Honfi |
| ½-½ | 32 | 1966 | Reggio Emilia 1966/67 | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 31. N Popov vs Karpov |
| 0-1 | 48 | 1967 | Leningrad | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 32. I Bilek vs A Dueckstein |
| ½-½ | 13 | 1967 | EU-chT preliminary | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 33. A Vitolinsh vs J Mileika |
| 1-0 | 20 | 1967 | Latvian Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 34. A Vitolinsh vs Klovans |
| 1-0 | 57 | 1967 | Latvian Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 35. N Gerasimov vs Savon |
| 0-1 | 40 | 1967 | Soviet Army Team Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 36. Keene vs H I Woolverton |
| 1-0 | 24 | 1967 | County match Surrey-Essex | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 37. Bronstein vs Geller |
| 0-1 | 80 | 1967 | USSR Championship 1966/67 | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 38. J Bednarski vs A Sydor |
| 1-0 | 58 | 1967 | Polish Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 39. O'Kelly vs Westerinen |
| 1-0 | 49 | 1967 | 7th Costa del Sol | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 40. D Minic vs Westerinen |
| 0-1 | 28 | 1967 | Halle Zonal | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 41. Hort vs V Ciocaltea |
| ½-½ | 44 | 1967 | Halle Zonal | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 42. V Ciocaltea vs L Zinn |
| 0-1 | 41 | 1967 | Halle Zonal | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 43. Westerinen vs L Zinn |
| 1-0 | 46 | 1967 | Halle Zonal | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 44. V Ciocaltea vs Portisch |
| ½-½ | 17 | 1967 | Halle Zonal | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 45. V Ciocaltea vs H Pfleger |
| 0-1 | 45 | 1967 | Bucharest | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 46. M Johansson vs Portisch |
| 0-1 | 37 | 1967 | Halle Zonal | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 47. Fischer vs Smyslov |
| ½-½ | 40 | 1967 | Monte Carlo | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 48. I Ryc vs J Augustin |
| ½-½ | 16 | 1967 | Czechoslovak Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 49. Hort vs V Zheliandinov |
| 1-0 | 12 | 1967 | Allied Armies Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 50. J Kupper vs Unzicker |
| 0-1 | 31 | 1967 | Clare Benedict Cup | C69 Ruy Lopez, Exchange, Gligoric Variation |
Kibitzing
