Correspondence Checkers Program to Challenge for World Championship J o n a t h a n Schaeffer J o s e p h Culberson N o r m a n Treloar B r e n t Knight Paul L u D u a n e Szafron D e p a r t m e n t of C o m p u t i n g Science University of Alberta E d m o n t o n , Alberta C a n a d a T 6 G 2H1 jonathan@cs.ualberta.ca Abstract The checkers program Chinook has won the right to play a 40-game match for the World Checkers Championship against Dr. Marion Tinsley. This was earned by placing second, after Dr. Tinsley, at the U.S. National Open, the biennial event used to determine a challenger for the Championship. At the event, and the preceding Mississippi State Open, Chinook drew a 4 game match against the World Champion and defeated the world's number 2, 4 and 6 players. This is the first time a program has earned the right to contest for a human World Championship. In a practice match played as a prelude to the World Championship
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