Computer chess built in by the evaluation function and pruning/extension rules began to match the best players in the world. It turned out to produce excellent results, at least in the field of chess, to let computers do what they do best (calculate) rather than coax them into imitating human thought processes and knowledge. In 1997 Deep Blue defeated World Champion Garry Kasparov, marking the first time a computer has defeated a reigning world chess champion in standard time control. Computer chess programs consider chess moves as a game tree. In theory, they examine all moves, then all counter-moves to those moves,
1997 BDO World Darts Championship 1997 BDO World Darts Championship The 1997 Embassy World Professional Darts Championship was held from 4–12 January 1997 at the Lakeside Country Club in Frimley Green, Surrey. It was won by Les Wallace, who became the second Scotsman to become World Darts Champion after Jocky Wilson won it twice in 1982 and 1989. Wallace defeated Wales' Marshall James 6-3 in the final. Wallace also became the first left-handed player to win either version of the World Darts Championship. It was also the second time in four years that two unseeded players had reached the Embassy final, and remains the most