White | Elo | Black | Elo | ECO | Year | Res. | # | | | |
Kupper, Josef
|
|
Keres, Paul
|
|
C73
|
1961
|
0-1
| 41 |
|
|
|
Kupper, Josef
|
|
Prins, Lodewijk
|
|
C73
|
1962
|
½-½
| 41 |
|
|
|
Kupper, Josef
|
|
Gligoric, Svetozar
|
|
C73
|
1963
|
½-½
| 57 |
|
|
|
Kupper, Josef
|
|
Llado Lumbera, Jaime
|
|
C73
|
1963
|
½-½
| 30 |
|
|
|
Kupper, Josef
|
|
Paidoussis, Aristidis
|
|
C73
|
1964
|
1-0
| 41 |
|
|
|
Kupper, Josef
|
|
Medina Garcia, Antonio...
|
|
C73
|
1972
|
½-½
| 44 |
|
|
|