IBM Chess Tournament 1969 in the RAI in Amsterdam Hans Ree (standing) and Jan Hein Donner Annotation: marginals negative strip: nr. 17: Rob Hartig; nr. 18, 19: Rob Hartig and Borislav Ivkov; nr. 20: Hans Ree and Jan Hein Donner Date: 22 July 1969 Location: Amsterdam, Noord-Holland Keywords: chess, sports, tournaments Institution name: IBM Chess Tournament
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