Author: Jeremiah Penery
Date: 13:43:48 03/28/99
Go up one level in this thread
On March 28, 1999 at 13:54:58, blass uri wrote: > >On March 28, 1999 at 13:46:49, José de Jesús García Ruvalcaba wrote: > >>On March 28, 1999 at 13:30:30, blass uri wrote: >> >>> >>>On March 28, 1999 at 13:19:16, José de Jesús García Ruvalcaba wrote: >>> >>>>On March 28, 1999 at 05:46:46, blass uri wrote: >>>> >>>>>I looked in gambitsofrt forum >>>>>and I found that Junior5 won Wchess2000 in mclane's tournament >>>>> >>>>>Junior got a drawn KQP vs KQ >>>>> >>>>>8/8/6Q1/3p4/1K1k4/8/8/7q b - - 0 1 >>>>> >>>>>Junior5 did not use tablebases and played Qe1+ >>>>> >>>>>Junior5 won after a mistake of wchess2000 (Kb5) >>>>> >>>>>Tablebases tell Junior5 to play Ke3? Qg5+ Ke2 and black is losing the pawn after >>>>>Kc5. >>>>> >>>>>Uri >>>> >>>> That is what I call poor tablebase handling. Tablebases should never decrase >>>>playing strength when they are probed at the root. Is this a problem of Junior? >>>>or has something to do with the tablebases? >>> >>>No, it is a problem of Fritz5 >>>Junior is using tablebases of Fritz5 in the ssdf games and it is not fair. >>> >>>The original Junior5 does not use tablebases. >>> >>>Uri >> >> I do not understand the strange relationship between Junior5 and Fritz5. Could >>you please elaborate? Why does Junior use Fritz's tablebases? Is it being >>handicapped by Fritz's poor tablebase handling? > >I asked the ssdf guys about this and I told them that I think that it should not >use the tablebases and Amir Ban replied that it is impossible to use the >autoplayer for Junior5 without the tablebases of Fritz5(In the Fritz5 CD). > >chessbase is quilty about this strange relationship. > >I believe that Junior5 is handicapped by Fritz's poor tablebase handling but I >am not sure about it because the tablebases can sometimes be productive . The problem is that with best play from both sides, this position is a dead draw. The Tablebases just make any move that does not lose, but they will not try to win this ending. Crafty has a 'swindle mode' that tries to make the most difficult drawing move from the TBs with a search, hoping the opponent will make a mistake. In this position, Crafty would play Qe1+ with swindle mode on. Jeremiah
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