IBM Chess Tournament. Lajos Portisch Annotation: Negative-strip (not shown) Number 3 and 5 Portisch, number 4 Donner (left) and Langeweg Date: 26 July 1967 Location: Amsterdam Keywords: chess Personname: Portisch, Lajos
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Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
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