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Subject: Re: Great test position also....trapped queen (bad test position)

Author: Uri Blass

Date: 15:07:21 12/12/05

Go up one level in this thread


On December 12, 2005 at 16:54:56, robert flesher wrote:

>Does your engine see ..Qxb2 is losing
>
>[d]r1b1k2r/1p1p1p2/pqn1p3/6P1/4PB2/3B3P/PPP1NQ2/RN4K1 b kq - 0 17


Rybka can see it but it is a bad test position because there is no better move


Bob Kiviaho - Rybka Beta,  2005
[D]r1b1k2r/1p1p1p2/pqn1p3/6P1/4PB2/3B3P/PPP1NQ2/RN4K1 b kq - 0 1

Analysis by Rybka 1.0 Beta 32-bit:

17...Qxb2
  -+  (-1.57)   Depth: 3   00:00:00
17...Qxb2
  -+  (-1.78)   Depth: 4   00:00:00
17...Qxb2 18.Kg2
  -+  (-2.20)   Depth: 5   00:00:00
17...Qxb2 18.Nec3 Qxa1
  -+  (-2.26)   Depth: 6   00:00:00  10kN
17...Qxb2 18.Nec3 Qxa1 19.h4
  -+  (-2.24)   Depth: 7   00:00:00  18kN
17...Qxb2 18.Nec3 Qxa1 19.Kg2 e5
  -+  (-2.26)   Depth: 8   00:00:00  52kN
17...Qxb2 18.Nec3 Qxa1 19.Kg2 e5 20.Bg3
  -+  (-2.24)   Depth: 9   00:00:01  126kN
17...Qxb2 18.c3 Qxa1 19.Nc1 Na5 20.Qg2 Rh4
  -+  (-2.24)   Depth: 10   00:00:02  372kN
17...Qxb2 18.Nc1 e5 19.Nb3 exf4 20.h4 f6 21.N1d2
  -+  (-1.48)   Depth: 11   00:00:05  699kN
17...Qxb2 18.Nc1 e5 19.Nb3 exf4 20.h4 f6 21.N1d2 fxg5
  -+  (-1.60)   Depth: 12   00:00:08  904kN
17...Qxb2 18.Nc1 e5 19.Nb3 exf4 20.h4 f6 21.Qxf4 Qe5 22.Qxe5+
  -+  (-1.67)   Depth: 13   00:00:15  1381kN
17...Qxb2 18.Nc1 e5 19.Nb3 exf4 20.h4 f6 21.Qxf4 Qe5 22.Qxe5+
  -+  (-1.50)   Depth: 14   00:00:33  2589kN
17...Qxb2 18.Nec3 Rxh3 19.g6 fxg6 20.Bd6 Qc1+ 21.Bf1 Qg5+ 22.Bg2
  =  (0.00)   Depth: 15   00:03:35  12713kN
17...Qxb2 18.Bd6 Rg8 19.Nbc3 Qxa1+ 20.Kh2 Rxg5 21.Qf6 Rg8 22.Nd5
  +-  (1.81)   Depth: 16   00:09:24  35752kN
17...Qxb2 18.Bd6 Rg8 19.Nbc3 Qxa1+ 20.Kh2 Rxg5 21.Qf6 Rg8 22.Nd5
  +-  (1.81)   Depth: 17   00:11:29  43939kN
17...Qxb2 18.Bd6 Rg8 19.Nbc3 Qxa1+ 20.Kh2 Rxg5 21.Qf6 Rg8 22.Nd5
  +-  (2.07)   Depth: 18   00:15:56  62393kN
17...Qxb2 18.Bd6 Rg8 19.Nbc3 Qxa1+ 20.Kh2 Rxg5 21.Qf6 Rg8 22.Nd5
  +-  (2.01)   Depth: 19   00:25:42  99111kN

(,  13.12.2005)

Ur



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