| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Bannik vs V Zurakhov |
| ½-½ | 60 |
1959 |
UKR-ch | A23 English, Bremen System, Keres Variation |
| 27. R Steinmeyer vs W R Trinks |
| 1-0 | 47 |
1959 |
Cr (Match) | A23 English, Bremen System, Keres Variation |
| 28. Taimanov vs V Mikenas |
| 1-0 | 46 |
1960 |
Leningrad | A23 English, Bremen System, Keres Variation |
| 29. A Reshko vs Spassky |
 | 0-1 | 40 |
1960 |
Rostov | A23 English, Bremen System, Keres Variation |
| 30. Uhlmann vs Unzicker |
| ½-½ | 13 |
1960 |
Buenos Aires | A23 English, Bremen System, Keres Variation |
| 31. V J Hansen vs F Petersen |
| 0-1 | 23 |
1960 |
Ch Denmark, Aalborg (Denmark) | A23 English, Bremen System, Keres Variation |
| 32. Ujtelky vs S From |
 | 1-0 | 41 |
1960 |
Leipzig ol (Men) qual-C | A23 English, Bremen System, Keres Variation |
| 33. B Wexler vs O Bazan |
| ½-½ | 20 |
1960 |
Buenos Aires | A23 English, Bremen System, Keres Variation |
| 34. Najdorf vs Unzicker |
| ½-½ | 29 |
1960 |
Leipzig ol (Men) | A23 English, Bremen System, Keres Variation |
| 35. Saidy vs Benko |
| 1-0 | 82 |
1960 |
USA-ch | A23 English, Bremen System, Keres Variation |
| 36. Botvinnik vs Tal |
 | 1-0 | 73 |
1961 |
Tal-Botvinnik World Championship Return Match | A23 English, Bremen System, Keres Variation |
| 37. G Goldberg vs Bronstein |
| 1-0 | 48 |
1961 |
Ch Moscow | A23 English, Bremen System, Keres Variation |
| 38. Portisch vs Spassky |
 | 0-1 | 38 |
1961 |
Budapest | A23 English, Bremen System, Keres Variation |
| 39. A Khasin vs Spassky |
| ½-½ | 29 |
1961 |
USSR Championship 1961a | A23 English, Bremen System, Keres Variation |
| 40. J A Lawrence vs Wade |
| ½-½ | 24 |
1961 |
Appleby-Frodingham | A23 English, Bremen System, Keres Variation |
| 41. C Kalme vs Kavalek |
| 1-0 | 46 |
1961 |
WchT U26 08th | A23 English, Bremen System, Keres Variation |
| 42. H Rogosin vs D Benge |
| 0-1 | 42 |
1961 |
Southern California Amateur Championship | A23 English, Bremen System, Keres Variation |
| 43. L Stephens vs R Steinmeyer |
| 0-1 | 42 |
1961 |
St. Louis District Championship | A23 English, Bremen System, Keres Variation |
| 44. Korchnoi vs Keres |
 | ½-½ | 38 |
1962 |
Curacao Candidates | A23 English, Bremen System, Keres Variation |
| 45. N Padevsky vs V Mikenas |
| 1-0 | 70 |
1962 |
Sofia | A23 English, Bremen System, Keres Variation |
| 46. P Nicholas vs B Green |
| 0-1 | 24 |
1962 |
Whitby British u18 ch | A23 English, Bremen System, Keres Variation |
| 47. Bagirov vs Tal |
| ½-½ | 18 |
1963 |
Moskou | A23 English, Bremen System, Keres Variation |
| 48. Reshevsky vs Keres |
 | 1-0 | 42 |
1963 |
First Piatigorsky Cup | A23 English, Bremen System, Keres Variation |
| 49. Szabo vs N Padevsky |
| 1-0 | 69 |
1963 |
Moscow | A23 English, Bremen System, Keres Variation |
| 50. A Chevrier vs L Loeffler |
| 1-0 | 23 |
1963 |
2nd olw final | A23 English, Bremen System, Keres Variation |