| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Udovcic vs G Porreca |
| ½-½ | 58 | 1953 | Opatija | D93 Grunfeld, with Bf4 & e3 |
| 27. H Corral vs E Salomon |
| ½-½ | 32 | 1954 | Montevideo | D93 Grunfeld, with Bf4 & e3 |
| 28. J Marsalek vs J Holas |
| 1-0 | 35 | 1956 | Czechoslovak Championship | D93 Grunfeld, with Bf4 & e3 |
| 29. U Palmqvist vs R Sobel |
| 0-1 | 21 | 1957 | World Student Team Championship | D93 Grunfeld, with Bf4 & e3 |
| 30. J Hanken vs Santasiere |
 | 0-1 | 37 | 1957 | 58th US Open | D93 Grunfeld, with Bf4 & e3 |
| 31. L Rellstab vs H Lehmann |
| ½-½ | 11 | 1957 | FRG-ch | D93 Grunfeld, with Bf4 & e3 |
| 32. A Bisguier vs W M Byland |
| 1-0 | 16 | 1960 | 61st US Open | D93 Grunfeld, with Bf4 & e3 |
| 33. Y Kraidman vs Z Milev |
| ½-½ | 53 | 1960 | Leipzig Olympiad qual-1 | D93 Grunfeld, with Bf4 & e3 |
| 34. W Golz vs K Hartmann |
| 0-1 | 52 | 1961 | East German Championship | D93 Grunfeld, with Bf4 & e3 |
| 35. Y Kraidman vs R Persitz |
| 1-0 | 27 | 1961 | Netanya | D93 Grunfeld, with Bf4 & e3 |
| 36. M Udovcic vs Korchnoi |
| ½-½ | 27 | 1961 | European Team Championship | D93 Grunfeld, with Bf4 & e3 |
| 37. J E Barry vs L C Young |
| 1-0 | 17 | 1961 | 62nd US Open | D93 Grunfeld, with Bf4 & e3 |
| 38. W Golz vs B Malich |
| ½-½ | 50 | 1962 | East German Championship | D93 Grunfeld, with Bf4 & e3 |
| 39. M Litmanowicz vs K Eretova |
| 0-1 | 20 | 1963 | Lodz Zonal (Women) | D93 Grunfeld, with Bf4 & e3 |
| 40. B De Greiff vs Uhlmann |
| 0-1 | 42 | 1963 | Capablanca Memorial | D93 Grunfeld, with Bf4 & e3 |
| 41. Uhlmann vs P Trifunovic |
| ½-½ | 23 | 1963 | Capablanca Memorial | D93 Grunfeld, with Bf4 & e3 |
| 42. M Solmundarson vs Gligoric |
| 0-1 | 21 | 1964 | Reykjavik | D93 Grunfeld, with Bf4 & e3 |
| 43. M Rantanen vs Z Milev |
| 0-1 | 44 | 1964 | Tel Aviv Olympiad qual-7 | D93 Grunfeld, with Bf4 & e3 |
| 44. A Pomar vs Yanofsky |
| ½-½ | 30 | 1964 | Tel Aviv Olympiad Final-A | D93 Grunfeld, with Bf4 & e3 |
| 45. F Campomanes vs R Baxter |
| ½-½ | 37 | 1964 | Tel Aviv Olympiad Final-B | D93 Grunfeld, with Bf4 & e3 |
| 46. Hort vs S Kupka |
| 1-0 | 24 | 1964 | Harrachov 1964/65 | D93 Grunfeld, with Bf4 & e3 |
| 47. A Pomar vs E Jimenez Zerquera |
| ½-½ | 14 | 1965 | Marianske Lazne | D93 Grunfeld, with Bf4 & e3 |
| 48. S Moshe vs R Persitz |
| 0-1 | 47 | 1965 | Israeli Championship | D93 Grunfeld, with Bf4 & e3 |
| 49. S Hamann vs Simagin |
| 1-0 | 48 | 1966 | Kislovodsk | D93 Grunfeld, with Bf4 & e3 |
| 50. P M George vs B Dueno |
| 1-0 | 51 | 1966 | Orebro Stud olm fB | D93 Grunfeld, with Bf4 & e3 |
Kibitzing
