Author: Eelco de Groot
Date: 12:23:39 09/04/00
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Both Q5T and Y1 experimental personalities for Rebel Century 2.0 ECTool are showing a ! now in their search, not simply a +. I haven't seen this ! before.. They must be on to something but a mate in 12 is probably too deep too find, Q5T now at 17 ply deep. The engines have to share the one processor so this may take quite a while because of the consecutive fail highs. This looks like a position for a dedicated mate-solver! There used to be a Dutch program years ago in the days of 6502 and Z80 8-bits processors that was a fast solver. It would probably not work on a PIII or PIV without a major re-write, I think it was written in assembly language. There was a micro-computer television course from TELEAC here in The Netherlands and you could buy this computer especially for the course to learn more about micro-computers. Nobody had heard about PCs or their clones yet. But this mate solver was written for an Ohio Scientific computer I believe, by P.(Piet?) Wiereyns. Details are hidden in the stack with "Computerschaak" issues from the early eighties, no idea what became of the program. Maybe we should ask Jan Louwman, if he knows more. But I wonder what such a program would make of this Chigorin-Yakubovich position on todays fast computers.. Eelco
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