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Technical report TR97-05. This paper describes the inner workings of Keyano, a competitive Othello program that has achieved many top-three finishes in tournament play over the last five years. The unique features of Keyano's midgame search routine, evaluation function and opening book are...
The APHID Parallel alpha-beta Search Algorithm
Technical report TR96-07. This paper introduces the APHID (Asynchronous Parallel Hierarchical Iterative Deepening) game-tree search algorithm. An APHID search is a hierarchical search with a master controlling the top of the tree (d' ply), and the slaves searching the rest of the tree (d-d'...