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a Japanese computer scientist, M.Sc in 2011 from the Department of Computer Science, [https://en.wikipedia.org/wiki/University_of_Electro-Communications University of Electro-Communications], [https://en.wikipedia.org/wiki/Ch%C5%8Dfu,_Tokyo Tokyo]. As [[Shogi]] programmer, Takuya Obata is author of [[Clair 1/128]] and [[1/128 Rigan]], and co-author of [[Bonanza]] <ref>[https://groups.google.com/d/msg/shogi-l/bazz1reADOY/KB8UvBZQf_cJ WCSC20 Participant List] by Nobu, SHOGI-L, Shogi Google Group, February 02, 2010</ref>. Clair 1/128 won the Gold medal in [[15th Computer Olympiad#Shogi5x5|Shogi (5x5), Kanazawa 2010]], ahead of runner-up [https://www.game-ai-forum.org/icga-tournaments/program.php?id=682 [Shokidoki]] by [[Harm Geert Muller]], while Shokidoki won Gold in [[17th Computer Olympiad|Yokohama 2013]] ahead of 1/128 Rigan operated by [[Nakamichi Takashi]]. Clair 1/128 applies [[Magic Bitboards|magic bitboards]] and the [[Minimax Tree Optimization|Bonanza method]] of [[Automated Tuning|automated tuning]] <ref>[[Tomoyuki Kaneko]], [[Kunihito Hoki]] ('''2011'''). ''Analysis of Evaluation-Function Learning by Comparison of Sibling Nodes''. [[Advances in Computer Games 13]]</ref> <ref>[[Kunihito Hoki]], [[Tomoyuki Kaneko]] ('''2011'''). ''The Global Landscape of Objective Functions for the Optimization of Shogi Piece Values with a Game-Tree Search''. [[Advances in Computer Games 13]]</ref> <ref>[https://www.game-ai-forum.org/icga-tournaments/program.php?id=616 Clair 1/128's ICGA Tournaments]</ref>.