New York Times, New York, New York, Tuesday, May 26, 1959
Kupper and Larsen Play Draw In Chess
Five rounds of the Jubilee international chess masters tournament in Zurich were completed yesterday. The only adjourned game pending, between Josef Kupper of Switzerland and Bent Larsen of Denmark, was drawn, according to a report received through Swiss news sources.
Kupper had a slight advantage in position at adjournment, but Larsen succeeded in equalizing.