Score bounded Monte-Carlo tree search

  • Authors:
  • Tristan Cazenave;Abdallah Saffidine

  • Affiliations:
  • LAMSADE, Université Paris-Dauphine, Paris, France;LAMSADE, Université Paris-Dauphine, Paris, France

  • Venue:
  • CG'10 Proceedings of the 7th international conference on Computers and games
  • Year:
  • 2010

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Abstract

Monte-Carlo Tree Search (MCTS) is a successful algorithm used in many state of the art game engines. We propose to improve a MCTS solver when a game has more than two outcomes. It is for example the case in games that can end in draw positions. In this case it improves significantly a MCTS solver to take into account bounds on the possible scores of a node in order to select the nodes to explore. We apply our algorithm to solving Seki in the game of Go and to Connect Four.