Author: Jeremiah Penery
Date: 23:32:15 03/27/99
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On March 28, 1999 at 01:14:55, blass uri wrote: > >On March 28, 1999 at 00:10:37, Paulo Soares wrote: > >>On March 27, 1999 at 10:38:07, Goette Patrick wrote: >> >>>Hello, >>> >>>Here is a position taken fom a study from Selesniev (1919), which is interesting >>>to submit to computers to see how they react. If black play the best line, they >>>will only get a draw, this according to my program Hiarcs 6.0. >>>And yours ? Does it find something else ? >>> >>>White to move. >>>White : Ka4,Re1,b5,c4,d5,g4,g5 >>>Black : Kh8,Rh3,b6,c7,d7,e3,f7,g6,g7 >> >>Goette, >> >>This study could be called whites play and draw? >> >>1.d6 cxd6 2.c5 dxc5 3.Rxe3 Rh2 4.Rh3+ Rxh3 stalamate. >> >>If this will be the main line, Crafty16.5 T, >>Fritz5.32 and Genius6 does not find this >>variant in aproach 7 minutes in PII-300 HT=60Mb. >> >>Best regards, >> >>Paulo Soares, from Brazil > >Junior5 can see the sraw in 2 minutes and 54 seconds at depth 21 on >pentium200MMX(64M hash tables) >Junior5.3 is slower in this position(there are of course positions that >Junior5.3 is faster) and needs 3 minutes and 31 seconds to see the draw. > >Even Junior4.6 can see the draw in less than 10 minutes on pentium200 >(eqvivalent to less than 7 minutes on pentium300) > >If you want your program to solve this position at tournament time control then >buy Junior. > >Uri How does Junior/Fritz evaluate the position after 2. ...bxc5 ? Crafty gives a nice advantage for black, but actually white will eventually win (Long Tablebase wins are finally seen after about 20-25 plies are played). If Fritz/Junior give advantage to black in this position, this is the move that they should pick for black. Jeremiah
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