| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Korchnoi vs O'Kelly |
| ½-½ | 30 | 1954 | Bucharest | E25 Nimzo-Indian, Samisch |
| 27. H Berliner vs A Mengarini |
| ½-½ | 64 | 1954 | United States Championship | E25 Nimzo-Indian, Samisch |
| 28. Tal vs R Etruk |
 | 1-0 | 40 | 1954 | URS-chT Juniors | E25 Nimzo-Indian, Samisch |
| 29. I Branicki vs K Makarczyk |
| 1-0 | 27 | 1954 | Polish Championship | E25 Nimzo-Indian, Samisch |
| 30. V Soloviev vs A Khasin |
| ½-½ | 33 | 1955 | Moscow Championship | E25 Nimzo-Indian, Samisch |
| 31. T van Scheltinga vs H Kramer |
| 1-0 | 65 | 1956 | Hoogovens | E25 Nimzo-Indian, Samisch |
| 32. Benko vs P Dely |
| 1-0 | 42 | 1956 | Budapest Szikra | E25 Nimzo-Indian, Samisch |
| 33. H Berliner vs F R Anderson |
| 0-1 | 30 | 1956 | Canadian Open | E25 Nimzo-Indian, Samisch |
| 34. Korchnoi vs E Chukaev |
| 1-0 | 34 | 1956 | URS-ch sf Tbilisi | E25 Nimzo-Indian, Samisch |
| 35. Averbakh vs A Khasin |
| 1-0 | 30 | 1957 | Moscow Championship | E25 Nimzo-Indian, Samisch |
| 36. Portisch vs I Bilek |
| 1-0 | 32 | 1957 | Hungarian Championship | E25 Nimzo-Indian, Samisch |
| 37. Korchnoi vs V Bykov |
| 1-0 | 45 | 1957 | Leningrad Championship | E25 Nimzo-Indian, Samisch |
| 38. G Mititelu vs N Minev |
| 0-1 | 36 | 1957 | World Student Team Championship | E25 Nimzo-Indian, Samisch |
| 39. Szabo vs R Teschner |
| 1-0 | 41 | 1957 | Wageningen Zonal | E25 Nimzo-Indian, Samisch |
| 40. Bondarevsky vs Furman |
| ½-½ | 74 | 1958 | URS-ch sf Moscow | E25 Nimzo-Indian, Samisch |
| 41. Polugaevsky vs Petrosian |
| ½-½ | 35 | 1958 | USSR Championship | E25 Nimzo-Indian, Samisch |
| 42. N Krogius vs I Vistaneckis |
| 1-0 | 57 | 1958 | 5th Soviet Team Championship Final | E25 Nimzo-Indian, Samisch |
| 43. N Kopilov vs L Maslov |
| 1-0 | 22 | 1958 | 5th Soviet Team Championship Final | E25 Nimzo-Indian, Samisch |
| 44. Botvinnik vs J H Donner |
| ½-½ | 23 | 1958 | Munich Olympiad qual-1 | E25 Nimzo-Indian, Samisch |
| 45. A Khadshipetrov vs A Kolarov |
| 0-1 | 34 | 1959 | Bulgarian Championship | E25 Nimzo-Indian, Samisch |
| 46. A Khadshipetrov vs I Iliev |
| 1-0 | 72 | 1959 | Bulgarian Championship | E25 Nimzo-Indian, Samisch |
| 47. Portisch vs A Matanovic |
| ½-½ | 16 | 1959 | Yugoslavia - Hungary | E25 Nimzo-Indian, Samisch |
| 48. C Jauregui vs O Quinones Carrillo |
| ½-½ | 26 | 1959 | Lima | E25 Nimzo-Indian, Samisch |
| 49. Taimanov vs B Milic |
| 1-0 | 34 | 1959 | Soviet Union - Yugoslavia | E25 Nimzo-Indian, Samisch |
| 50. Taimanov vs B Milic |
| ½-½ | 31 | 1959 | Soviet Union - Yugoslavia | E25 Nimzo-Indian, Samisch |
Kibitzing
