White | Elo | Black | Elo | ECO | Year | Res. | # | | | |
Portisch, Lajos
|
|
Boey, Josef Martin
|
|
B06
|
1968
|
1-0
| 39 |
|
|
|
Portisch, Lajos
|
|
Yanofsky, Daniel Abrah...
|
|
B06
|
1968
|
½-½
| 52 |
|
|
|
Portisch, Lajos
|
|
Lahti, Jouko
|
|
B06
|
1969
|
½-½
| 59 |
|
|
|
Portisch, Lajos
|
|
Suttles, Duncan
|
|
B06
|
1970
|
1-0
| 35 |
|
|
|
Portisch, Lajos
|
2625
|
Petrosian, Tigran V
|
2635
|
B06
|
1976
|
½-½
| 30 |
|
|
|