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was a British [https://en.wikipedia.org/wiki/English_draughts draughts ] ([[Checkers]]) champion, competing in seven World Championship matches <ref>[http://www.usacheckers.com/worldchampionshipresults.php The American Checker Federation - World Championships]</ref>, and rival of [https://en.wikipedia.org/wiki/Marion_Tinsley Marion Tinsley]. He was also a [[Checkers]] programmer, competing the [[1st Computer Olympiad#Checkers|1st Computer Olympiad, 1989]] with his [https://www.game-ai-forum.org/icga-tournaments/program.php?id=341 Checker Hustler] program, and the [[2nd Computer Olympiad#Checkers|2nd Computer Olympiad, 1990]] with [https://www.game-ai-forum.org/icga-tournaments/program.php?id=390 Checkermate], written along with [[Adrian Millett]].