Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. H Huguet vs F Casas |
| ½-½ | 50 | 1951 | Buenos Aires FADA Mayor | E26 Nimzo-Indian, Samisch |
27. A Esposito vs J Bolbochan |
| ½-½ | 25 | 1951 | Mar del Plata Zonal | E26 Nimzo-Indian, Samisch |
28. H Steiner vs H Mueller |
| ½-½ | 55 | 1951 | Schlechter Memorial | E26 Nimzo-Indian, Samisch |
29. J Gonzalez de Vega vs A Sandrin |
| ½-½ | 51 | 1951 | 52nd US Open | E26 Nimzo-Indian, Samisch |
30. Koblents vs I Kan |
| ½-½ | 26 | 1952 | URS-ch sf Riga | E26 Nimzo-Indian, Samisch |
31. C H Maderna vs F Pinzon |
| ½-½ | 20 | 1952 | Mar del Plata | E26 Nimzo-Indian, Samisch |
32. H Enevoldsen vs D V Hooper |
| ½-½ | 22 | 1952 | Helsinki Olympiad qual-1 | E26 Nimzo-Indian, Samisch |
33. E A Mandelbaum vs K U Mueller |
| ½-½ | 71 | 1952 | Helsinki Olympiad Final-B | E26 Nimzo-Indian, Samisch |
34. F Mastichiadis vs O Cruz Filho |
| ½-½ | 51 | 1952 | Helsinki Olympiad Final-C | E26 Nimzo-Indian, Samisch |
35. F Koberl vs J Pogats |
| ½-½ | 49 | 1952 | Hungarian Championship | E26 Nimzo-Indian, Samisch |
36. Spassky vs O'Kelly |
 | ½-½ | 48 | 1953 | Bucharest | E26 Nimzo-Indian, Samisch |
37. T H Wise vs D Horne |
| ½-½ | 36 | 1953 | British Championship | E26 Nimzo-Indian, Samisch |
38. Sliwa vs G Palmason |
| ½-½ | 40 | 1954 | Prague / Marianske Lazne Zonal | E26 Nimzo-Indian, Samisch |
39. E Pedersen vs H Koskinen |
| ½-½ | 24 | 1954 | Prague / Marianske Lazne Zonal | E26 Nimzo-Indian, Samisch |
40. Petrosian vs R Goode |
| ½-½ | 46 | 1954 | Sweden - Soviet Union | E26 Nimzo-Indian, Samisch |
41. C Rivera vs E Weichselbaumer |
| ½-½ | 62 | 1954 | Amsterdam Olympiad Final-B | E26 Nimzo-Indian, Samisch |
42. Z Kovacs vs G Noradounghian |
| ½-½ | 19 | 1954 | Amsterdam Olympiad Final-B | E26 Nimzo-Indian, Samisch |
43. B Vladimirov vs Y Shteinsapir |
| ½-½ | 41 | 1955 | 15th Ch RSFSR (sf) | E26 Nimzo-Indian, Samisch |
44. Z Kovacs vs K Bergsma |
| ½-½ | 57 | 1955 | Hoogovens | E26 Nimzo-Indian, Samisch |
45. A Dake vs A Turner |
| ½-½ | 30 | 1955 | 56th US Open | E26 Nimzo-Indian, Samisch |
46. A Cherepkov vs Kholmov |
| ½-½ | 48 | 1955 | URS-ch sf Leningrad | E26 Nimzo-Indian, Samisch |
47. Averbakh vs Botvinnik |
| ½-½ | 41 | 1955 | Training Game | E26 Nimzo-Indian, Samisch |
48. T Venni vs G Porreca |
| ½-½ | 59 | 1956 | Italian Championship | E26 Nimzo-Indian, Samisch |
49. M Colon Romero vs A Stenborg |
| ½-½ | 45 | 1956 | Moscow Olympiad qual-1 | E26 Nimzo-Indian, Samisch |
50. L Aronson vs Boleslavsky |
| ½-½ | 47 | 1957 | Belarusian Championship | E26 Nimzo-Indian, Samisch |