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<blockquote data-quote="John Roberts" data-source="post: 19448" data-attributes="member: 126">Re: WatsonIt requires great complexity in parsing natural language albeit a limited subset of that natural language. A different problem than chess computers. Probably much more useful commercially than playing games. I bought one of those microcomputer based chess games back in the &#039;70s and it would allow you to set different degree&#039;s of difficulty. Not too surprising, the higher degrees of difficulty took several hours for the slow circa &#039;70s micro to crunch though enough data to be competitive with even unrated players. Playing serious chess with a computer back then was like playing by mail, while you wait overnight for the next move. Brute force is most useful in the end game, but I suspect most players and chess programs just memorize the shorter list of standard classic openings for the early game moves. Tree trimming, is practiced to save computer time. With modern platforms that is less needed, while the future moves in chess games, just like warfare, ultimately depend on the enemy&#039;s response. Only when the competition strays from a classic opening, does the computer need to worry, or take advantage of a potential mistake.&nbsp; Note: I don&#039;t think computers worry, but they could be programmed to act like they do.&nbsp;&nbsp; JR</blockquote>

[QUOTE="John Roberts, post: 19448, member: 126"] Re: Watson It requires great complexity in parsing natural language albeit a limited subset of that natural language. A different problem than chess computers. Probably much more useful commercially than playing games. I bought one of those microcomputer based chess games back in the '70s and it would allow you to set different degree's of difficulty. Not too surprising, the higher degrees of difficulty took several hours for the slow circa '70s micro to crunch though enough data to be competitive with even unrated players. Playing serious chess with a computer back then was like playing by mail, while you wait overnight for the next move. Brute force is most useful in the end game, but I suspect most players and chess programs just memorize the shorter list of standard classic openings for the early game moves. Tree trimming, is practiced to save computer time. With modern platforms that is less needed, while the future moves in chess games, just like warfare, ultimately depend on the enemy's response. Only when the competition strays from a classic opening, does the computer need to worry, or take advantage of a potential mistake. Note: I don't think computers worry, but they could be programmed to act like they do. JR [/QUOTE]

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