Author: Jim Phillips
Date: 18:02:06 09/29/98
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On September 29, 1998 at 14:00:40, William H Rogers wrote: >Has anyone done any research on the ratings that a program has at different >plys? >I once saw a test of chess 4.7 and they had some preliminary ratings on their >program at different ply levels. They could set the depth that their program >would search, not necessarily based on time. >bill Hi Bill, There was an article in Scientific American in approximately 1990-1991 which had a graph showing the play ratings of various chess programs and how many plies deep they searched. I don't have the article handy here; I would have to dig it up. But I do remember definitely that the graph implied that a program's rating increased by 180-200 points for each ply deeper it searched. It was displayed as a straight-line graph. I don't know if that's right or wrong; it's certainly debatable. -Jim Phillips
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