Title: Computer chess pioneer Adelson-Velsky at chalkboard in Moscow
Photographer: Newborn, Monroe
Credit Line: Gift of Monroe Newborn
John McCarthy used an improved version of the Kotok program to play correspondence chess against a Soviet program developed at the Moscow Institute for Theoretical and Experimental Physics (ITEP) by George Adelson-Velsky and others. In 1967, a four-game match played over nine months was won 3-1 by the Soviet program.