![File:1e Ronde, Boris Spasky (l) en Lajos Portisch aan het begin van hun partij, Bestanddeelnr 930-5228.jpg - Wikimedia Commons File:1e Ronde, Boris Spasky (l) en Lajos Portisch aan het begin van hun partij, Bestanddeelnr 930-5228.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/1e_Ronde%2C_Boris_Spasky_%28l%29_en_Lajos_Portisch_aan_het_begin_van_hun_partij%2C_Bestanddeelnr_930-5228.jpg/2560px-1e_Ronde%2C_Boris_Spasky_%28l%29_en_Lajos_Portisch_aan_het_begin_van_hun_partij%2C_Bestanddeelnr_930-5228.jpg)
File:1e Ronde, Boris Spasky (l) en Lajos Portisch aan het begin van hun partij, Bestanddeelnr 930-5228.jpg - Wikimedia Commons
![Tweekamp Larsen versus Portisch in De Doelen in Rotterdam Lajos Portisch concentrated behind the board Date: March 8, 1977 Location: Rotterdam, South-Holland Keywords: grandmasters, chess Personal name: Portisch, Lajos Stock Photo - Alamy Tweekamp Larsen versus Portisch in De Doelen in Rotterdam Lajos Portisch concentrated behind the board Date: March 8, 1977 Location: Rotterdam, South-Holland Keywords: grandmasters, chess Personal name: Portisch, Lajos Stock Photo - Alamy](https://c8.alamy.com/comp/2AR69TM/tweekamp-larsen-versus-portisch-in-de-doelen-in-rotterdam-lajos-portisch-concentrated-behind-the-board-date-march-8-1977-location-rotterdam-south-holland-keywords-grandmasters-chess-personal-name-portisch-lajos-2AR69TM.jpg)
Tweekamp Larsen versus Portisch in De Doelen in Rotterdam Lajos Portisch concentrated behind the board Date: March 8, 1977 Location: Rotterdam, South-Holland Keywords: grandmasters, chess Personal name: Portisch, Lajos Stock Photo - Alamy
![Lajos Portisch, July 15, 1969, chess, tournaments, The Netherlands, 20th century press agency photo, news to Lajos Portisch, July 15, 1969, chess, tournaments, The Netherlands, 20th century press agency photo, news to](https://c8.alamy.com/comp/2FX20C5/lajos-portisch-july-15-1969-chess-tournaments-the-netherlands-20th-century-press-agency-photo-news-to-remember-documentary-historic-photography-1945-1990-visual-stories-human-history-of-the-twentieth-century-capturing-moments-in-time-2FX20C5.jpg)