Author: Uri Blass
Date: 04:39:34 08/29/00
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On August 29, 2000 at 06:54:38, Helmut Conrady wrote: >On August 29, 2000 at 01:12:22, Jouni Uski wrote: > >>[D]r3rb1k/6p1/p2p3p/1ppb4/PB6/5NRP/1q3PP1/1B1QR1K1 b - - >> >>I watched this game live and I was quite sure, that Shredder will lose, when I >>noticed that Qxb4,cxb4 as well as Bxf3 are all losing. But Shredder found >>interesting Bc4, which saved the game. Question: was it counted or was it book? >>I checked position with 4 programs on AMD 450Mhz: >> >>Fritz6a 30m -Qxb4 >>Crafty 17.10 30m -Qxb4 (149m -Ba2) >>Junior6a 16m -Qb3 >> 20m -Ba2 >>Lg2000 v2.9 13m -Bc4 >> >>As normally Goliath is the fastest in tactical counting. I wonder if Ba2 >>is even better move than Bc4? >> >>Jouni > >Why do you think, 24. Qxb4 is a losing move. General.ctg, Fritz opening book >gives a possible line IMO! > >Helmut 24...Qxb4 is a losing move. I found some human-human games with this move and white won all of them. I think that shredder could do better if it could also use a database of games to help it when it is out of book. I do not suggest to avoid lines when humans won the games because humans can make error but it is possible to consider history games in the decsion what extension to make or to use them in similiar way that rebel can use Eoc. I think that 23...Qxb2 was a mistake and the line 23...Rxe1+ 24.Bxe1 Bxf3 I also found that the last chance of shredder to follow a line that humans drew with black was in move 22 when humans played in the past 22...Rxe1+ I did not buy special database and I used the site http://www.chessbase-online.com/ and played the first 20 moves on the board there. There seem to be a bug in the search on this site and if I click on more than 20 moves it finds no games but this site was enough for me to find the information that I posted here. Uri
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