Author: Shep
Date: 05:40:06 09/28/99
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On September 28, 1999 at 06:49:54, Bertil Eklund wrote: >If H7.32 is weaker then H7.01 my guess it´s because of the table-bases that >slows it down a lot in the endgame. If you have played both versions I guess you >should have recognized it immediately. I wouldn't say it gets slowed down "a lot". I have never seen Hiarcs drop below its usual middle game node count even during heavy tablebase access. Maybe it would be faster without them, but certainly not to the point where it is actually harmful. If TB usage is indeed counterproductive, it is probably not related to decreased search speed. Example: FIN09 from Louguet II. Hiarcs 7.0 solves this in 18 minutes on my P6-233 while 7.32 cannot solve it in 40 minutes! Yet this is a position where a) Hiarcs does not slow down to a crawl (although it does probe them a lot more than e.g. Nimzo) and b) tablebases are quite useful IMO Besides, if indeed 7.32 plays weaker than 7.0 in general, it is definitely not tablebase-related; for example in my recent big tournament, there were only two games where Hiarcs ever probed the TB's, and neither of them was anything but a draw anyway. --- Shep
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