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Subject: Re: A test position from nimzo-shredder

Author: pete

Date: 07:16:43 08/24/00

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On August 24, 2000 at 08:46:11, Uri Blass wrote:

>[D]r3rb1k/6p1/p2p3p/1ppb4/PB6/5NRP/1q3PP1/1B1QR1K1 b - - 0 1
>
>How much time do programs need to find Bc4?
>This was the practically saving move of shredder against nimzo.
>
>I think the move is losing but it gave shredder practical chances for a draw and
>nimzo was not good enough to win(the typical computer move Qxb4 gives white an
>easy way to win).
>
>Uri

 ... Bc4 ! really looks like an extremely strong move for a chessprogram at 60/2
 , i.e. Crafty 17.12 would have no chance here ; though it detects Qxb4 to be
weak at ply 14 it can't find something better fast enough :

 14     9:41     --   1. ... Qxb4
 14    15:25  -1.43   1. ... Qxb4 2. Qxd5 Rxe1+ 3. Nxe1 Re8
                      4. Qf5 Rxe1+ 5. Kh2 Kg8 6. Qh7+ Kf7
                      7. Bg6+ Ke7 8. Rf3 Kd7 9. Rxf8 Re7
                      10. Bf5+ Kc6 11. Rc8+ Kb7 12. axb5
                      Qf4+ 13. g3 Qxf2+
 14    69:30   9/48   1. ... Bb7

pete



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