Author: leonid
Date: 20:12:11 12/27/99
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On December 27, 1999 at 23:00:55, Tom Kerrigan wrote: >On December 27, 1999 at 21:43:54, leonid wrote: > >>Hello! >> >>When the extensions were used in PC chess games for the first time? >> >>If you could indicate me some very strong and recent chess game that did not >>used the "extensions", it could be real help. I tryed for a long time to figure >>out what the raw speed of my logic is but "extensions" kept me in the dark. >>Maybe I even have those useful "oldies" that can solve my mystery. Just name >>them! >> >>Thanks, >>Leonid. > >The check extension has been used since the beginning of time. >-Tom I had the impression that somebody mention them as "invention of IBM". Maybe is was my mistake. One sad mistake. Leonid.
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