| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Gruenfeld vs K Kopetzky |
| ½-½ | 24 | 1950 | Vienna 5051 | D72 Neo-Grunfeld, 5.cd, Main line |
| 27. Euwe vs Pilnik |
 | 0-1 | 77 | 1950 | Amsterdam | D72 Neo-Grunfeld, 5.cd, Main line |
| 28. A Beni vs V Nestler |
| 1-0 | 44 | 1951 | Schlechter mem | D72 Neo-Grunfeld, 5.cd, Main line |
| 29. J H Donner vs E Klein |
| 1-0 | 27 | 1951 | Staunton mem | D72 Neo-Grunfeld, 5.cd, Main line |
| 30. O'Kelly vs A Phillips |
| 1-0 | 25 | 1951 | Hastings 1950/51 | D72 Neo-Grunfeld, 5.cd, Main line |
| 31. S Nedeljkovic vs B Milic |
| 0-1 | 49 | 1951 | YUG-ch 6th | D72 Neo-Grunfeld, 5.cd, Main line |
| 32. T van Scheltinga vs E Klein |
| ½-½ | 40 | 1951 | Staunton Memorial | D72 Neo-Grunfeld, 5.cd, Main line |
| 33. O'Kelly vs G Kramer |
| ½-½ | 34 | 1951 | Wertheim Memorial | D72 Neo-Grunfeld, 5.cd, Main line |
| 34. A Pytlakowski vs K Skold |
| 1-0 | 27 | 1951 | Marianske Lazne / Prague Zonal | D72 Neo-Grunfeld, 5.cd, Main line |
| 35. J H Donner vs Yanofsky |
| ½-½ | 44 | 1951 | Hastings 1951/52 | D72 Neo-Grunfeld, 5.cd, Main line |
| 36. Euwe vs T van Scheltinga |
| 1-0 | 32 | 1952 | Hoogovens | D72 Neo-Grunfeld, 5.cd, Main line |
| 37. B Wexler vs Pilnik |
| ½-½ | 20 | 1953 | Mar del Plata | D72 Neo-Grunfeld, 5.cd, Main line |
| 38. Euwe vs Smyslov |
 | 0-1 | 58 | 1953 | Zurich Candidates | D72 Neo-Grunfeld, 5.cd, Main line |
| 39. Euwe vs Keres |
| ½-½ | 26 | 1953 | Zurich Candidates | D72 Neo-Grunfeld, 5.cd, Main line |
| 40. M Pavey vs Seidman |
| 1-0 | 68 | 1954 | USA-ch | D72 Neo-Grunfeld, 5.cd, Main line |
| 41. Saidy vs R H Steinmeyer |
| 0-1 | 31 | 1954 | 55th US Open | D72 Neo-Grunfeld, 5.cd, Main line |
| 42. Szabo vs B Sandor |
| 1-0 | 38 | 1954 | HUN-ch 10th | D72 Neo-Grunfeld, 5.cd, Main line |
| 43. Euwe vs C Kalme |
| 0-1 | 35 | 1955 | Clock simul, 6b | D72 Neo-Grunfeld, 5.cd, Main line |
| 44. W G Addison vs Seidman |
| 0-1 | 24 | 1955 | 56th US Open | D72 Neo-Grunfeld, 5.cd, Main line |
| 45. Euwe vs Robatsch |
| 1-0 | 33 | 1957 | Clare Benedict Cup 4th | D72 Neo-Grunfeld, 5.cd, Main line |
| 46. Robert E Byrne vs M Siegel |
| 1-0 | 21 | 1957 | 58th US Open | D72 Neo-Grunfeld, 5.cd, Main line |
| 47. Robert E Byrne vs E Godbold |
| 1-0 | 29 | 1958 | 59th US Open | D72 Neo-Grunfeld, 5.cd, Main line |
| 48. Inge Johansson vs P Vaitonis |
| 0-1 | 39 | 1958 | 13th olm qual. group 4 | D72 Neo-Grunfeld, 5.cd, Main line |
| 49. Korchnoi vs B Katalymov |
| 1-0 | 71 | 1958 | URS-ch sf | D72 Neo-Grunfeld, 5.cd, Main line |
| 50. F Casas vs Gligoric |
| 0-1 | 33 | 1960 | Santa Fe | D72 Neo-Grunfeld, 5.cd, Main line |
Kibitzing
