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also known as "A Chess Playing Program for the [[IBM 7090]] Computer" was the first computer program to play chess convincingly. Between 1959 and [[Timeline#1962|1962]], while student of [[John McCarthy]] at the [[Massachusetts Institute of Technology]], [[Alan Kotok]] and his fellows [[Elwyn Berlekamp]], [[Michael A. Lieberman]], [[Charles Niessen]] and [[Robert A. Wagner]] wrote a chess program for the IBM 7090. Based on [[The Bernstein Chess Program|Alex Bernstein's 1957 program]] and routines by [[John McCarthy|McCarthy]] and [[Paul W. Abrahams]], they added [[Alpha-Beta|alpha-beta pruning]] to [[Minimax|minmax]], at McCarthy's suggestion. The Kotok-McCarthy-Program was written in [[Fortran]] and [https://en.wikipedia.org/wiki/IBM_704/9/90_FORTRAN_Assembly_Program#FORTRAN_Assembly_Program FAP], the IBM 7090 macro assembler.