| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. F J Perez vs Portisch |
| 0-1 | 28 | 1961 | 1st Costa del Sol | E28 Nimzo-Indian, Samisch Variation |
| 27. R Sallay vs J Pogats |
| 0-1 | 17 | 1961 | Hungarian Championship | E28 Nimzo-Indian, Samisch Variation |
| 28. T Ghitescu vs F Gragger |
| 0-1 | 37 | 1961 | Marianske Lazne Zonal | E28 Nimzo-Indian, Samisch Variation |
| 29. S Farias vs F Alves |
| 0-1 | 42 | 1961 | Brazilian Championship | E28 Nimzo-Indian, Samisch Variation |
| 30. I Akakinci vs R Fuchs |
| 0-1 | 51 | 1962 | Varna Olympiad qual-1 | E28 Nimzo-Indian, Samisch Variation |
| 31. Shamkovich vs Razuvaev |
 | 0-1 | 45 | 1963 | URS Spartakiad | E28 Nimzo-Indian, Samisch Variation |
| 32. T Ghitescu vs C van den Berg |
| 0-1 | 44 | 1965 | EUR-chT (Men) 3rd | E28 Nimzo-Indian, Samisch Variation |
| 33. S Moshe vs E Carmel |
| 0-1 | 24 | 1965 | Israeli Championship | E28 Nimzo-Indian, Samisch Variation |
| 34. E Jimenez Zerquera vs Filip |
| 0-1 | 59 | 1967 | Capablanca Memorial | E28 Nimzo-Indian, Samisch Variation |
| 35. S Witkowski vs W Schmidt |
| 0-1 | 23 | 1967 | Rubinstein Memorial | E28 Nimzo-Indian, Samisch Variation |
| 36. N Skalkotas vs H MacGrillen |
| 0-1 | 26 | 1968 | WchT U26 15th fin-B | E28 Nimzo-Indian, Samisch Variation |
| 37. S Sursock vs J Cordovil |
| 0-1 | 56 | 1970 | Siegen Olympiad Final-D | E28 Nimzo-Indian, Samisch Variation |
| 38. I Kanko vs S Bilyap |
| 0-1 | 49 | 1972 | Skopje Olympiad Final-C | E28 Nimzo-Indian, Samisch Variation |
| 39. V Pafnutieff vs B Harper |
| 0-1 | 38 | 1975 | Vancouver Open | E28 Nimzo-Indian, Samisch Variation |
| 40. J Bonilla vs F Bonapart |
| 0-1 | 41 | 1975 | World Junior Championship | E28 Nimzo-Indian, Samisch Variation |
| 41. K Franke vs Keene |
| 0-1 | 36 | 1976 | Hanover | E28 Nimzo-Indian, Samisch Variation |
| 42. S Dolton vs Chandler |
| 0-1 | 41 | 1977 | Charlton op 5th | E28 Nimzo-Indian, Samisch Variation |
| 43. C Niklasson vs L Karlsson |
| 0-1 | 38 | 1978 | Swedish Championship | E28 Nimzo-Indian, Samisch Variation |
| 44. T Spiller vs B Carpinter |
| 0-1 | 20 | 1979 | Civic Easter Tt | E28 Nimzo-Indian, Samisch Variation |
| 45. L Bass vs M Wiedenkeller |
| 0-1 | 38 | 1983 | Eksjo | E28 Nimzo-Indian, Samisch Variation |
| 46. R Diniz vs J C Gentil Netto |
| 0-1 | 56 | 1984 | Brazilian Championship | E28 Nimzo-Indian, Samisch Variation |
| 47. J Binzenhoefer vs B Schienmann |
| 0-1 | 46 | 1984 | Berliner Sommer | E28 Nimzo-Indian, Samisch Variation |
| 48. S Polgar vs Pachman |
| 0-1 | 41 | 1985 | Baden-Baden | E28 Nimzo-Indian, Samisch Variation |
| 49. A Karason vs H Haraldsson |
| 0-1 | 33 | 1986 | Reykjavik Open | E28 Nimzo-Indian, Samisch Variation |
| 50. L Remlinger vs M Rohde |
| 0-1 | 61 | 1987 | New York Open | E28 Nimzo-Indian, Samisch Variation |
Kibitzing
