Author: Fernando Villegas
Date: 06:01:02 03/02/01
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Hi Bert: Many many years ago, when animals talked and I had a CC7, I wrote a candid letter to Fidelity asking some question about this machine. I do not know why they answered with a detailed explanation of the levels of C7. Unfortunately, although I keep even commercial brochures related with chess computers, i did not keep this sheet, but I remember something about how the level operated. What I can recall is this: level 3, 30 seconds, "experienced" level, did three esxhaustive plies search. level 4, postal, 20 minutes per move, did an exhaustive full width search for four plies. level 6, three minutes per move, did five plies, the first three full widht and then massice prunning in fourth and fifth plies. level 7, 6 minutes per move, three full width and the last with prunning. Sorry I do not remember exactly how the prunning was done . Just historical -and as such, of course, distorted- info for you... Cheers Fernando
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