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,
Blue Force being sentenced to 15 years in prison. "Computer Gaming World"s Charles Ardai in 1993 stated that "Blue Force" "is simply not as strong as Walls' previous games". He criticized the game world ("prop-up facades"), "abysmal" dialogues, "appalling spelling errors and factual inconsistencies", and slow speed. Ardai concluded that "Walls and Tsunami both have better work in them ... they have nowhere to go but up". In 1996, "Computer Gaming World" declared "Blue Force" the 37th-worst computer game ever released. Blue Force Blue Force is a computer game for MS-DOS released in 1993 by former Police Quest designer Jim Walls. The