Emparejamiento de la ronda 4 el 1966-08-10 a las 0
| M. | Blancas | Ran. | Pts. | FIDE | Fed. | Res. | Negras | Ran. | Pts. | FIDE | Fed. | Ver |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | GM Pomar Salamanca, Arturo | 20 | 2,5 | 0 | ESP | ½-½ | MI Medina Garcia, Antonio | 12 | 2,0 | 0 | ESP | |
| 2 | Garcia Sainz, Pablo | 13 | 2,5 | 0 | ESP | 0-1 | Menvielle Lacourreye, Augusto | 11 | 1,5 | 0 | ESP | |
| 3 | Rojas Franco, Miguel | 14 | 2,0 | 0 | ESP | 1-0 | Llorente Barrueco, Jose Luis | 10 | 0,0 | 0 | ESP | |
| 4 | Fernandez Gonzalez, Jose Luis | 15 | 2,0 | 0 | ESP | 1-0 | Leuza Garcia, Jose | 9 | 0,5 | 0 | ESP | |
| 5 | Santos Sanchez, Francisco | 16 | 0,5 | 0 | ESP | 0-1 | Visier Segovia, Fernando | 8 | 2,0 | 0 | ESP | |
| 6 | Coret Frasquet, Jose | 17 | 1,0 | 0 | ESP | 0-1 | MN Llado Lumbera, Jaime | 7 | 1,5 | 0 | ESP | |
| 7 | MN Franco Raymundo, Eduardo | 18 | 2,0 | 0 | ESP | ½-½ | Merino Mejuto, Domingo | 6 | 1,5 | 0 | ESP | |
| 8 | Bas, Juan | 19 | 1,5 | 0 | ESP | 0-1 | Fernandez Fernandez, Angel | 5 | 2,0 | 0 | ESP | |
| 9 | MI Toran Albero, Roman | 1 | 1,5 | 0 | ESP | 1-0 | Cue Gonzalez, Ramon | 4 | 1,5 | 0 | ESP | |
| 10 | MN Palacios De La Prida, Ernesto | 2 | 1,5 | 0 | ESP | ½-½ | Ruiz Gutierrez, Manuel | 3 | 0,5 | 0 | ESP |