| Game | Result | Moves | Year | Event | ECO | Opening | |
|---|---|---|---|---|---|---|---|
| Svetozar Gligoric vs Gregorio Idigoras Guisasola | 0-1 | 45 | 1955 | Mar del Plata | D89 | Gruenfeld Exchange variation |  Browse |
| Gregorio Idigoras Guisasola vs Miguel Najdorf | 0-1 | 40 | 1955 | ARG-ch | E59 | Nimzo-Indian 4.e3 c5 | Browse |
| Gregorio Idigoras Guisasola vs Miguel Najdorf | 0-1 | 51 | 1955 | Mar del Plata | E68 | Anti-Borg (Desprez) Opening | Browse |
| Gregorio Idigoras Guisasola vs Ludek Pachman | 0-1 | 50 | 1955 | Mar del Plata | A32 | Queen's pawn game | Browse |
| Gregorio Idigoras Guisasola vs Oscar Panno | 1-0 | 41 | 1955 | Mar del Plata | E63 | King's pawn Opening | Browse |
| Herman Pilnik vs Gregorio Idigoras Guisasola | ½-½ | 43 | 1955 | Mar del Plata | D19 | Queen's pawn game | Browse |
| Gregorio Idigoras Guisasola vs Laszlo Szabo | 0-1 | 40 | 1955 | Mar del Plata | E64 | Gedult's Opening | Browse |
