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Subject: Re: R. preview 2 bug-->Attn: Vasik

Author: Eduard Nemeth

Date: 10:25:46 12/24/05

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On December 24, 2005 at 12:13:12, Bahram Namjou wrote:

>Rybka preview 2 doesn't respond to this position in analysis mode (under
>chessbase). However Rybka preview 1 does (which is Nxg7) in about 10 sec...bn
>
>r1b2rk1/1pqp1ppp/p1n1pn2/5N2/8/2PBB3/P1P2PPP/R2QR1K1 w KQkq - 0 1

YES, but only in analysis mode

(Please send Vasik a BUG-Report, thanks)

In normally mode finds Rybka 1.01 this move. I lets run on Level 2h/40 moves:

2h/40 Moves:


[D]r1b2rk1/1pqp1ppp/p1n1pn2/5N2/8/2PBB3/P1P2PPP/R2QR1K1 w - - 0 1

Analysis by Rybka 1.01 Preview 2 32-bit:

1.Sd6
  ²  (0.31)   Tiefe: 3   00:00:00
1.Sd6
  =  (0.17)   Tiefe: 4   00:00:00
1.Sd6 g6
  =  (0.17)   Tiefe: 5   00:00:00
1.Sd6 Sd5 2.Lc5
  =  (0.08)   Tiefe: 6   00:00:01  21kN
1.Sd6 Sd5 2.Lc5 Se5
  ³  (-0.33)   Tiefe: 7   00:00:01  35kN
1.Sd6 Sd5 2.Lc5 Se5 3.Lb4
  =  (-0.25)   Tiefe: 8   00:00:03  89kN
1.Sd6 Sd5 2.Lc5 Se5 3.Lb4 Sxb4
  =  (-0.21)   Tiefe: 9   00:00:06  178kN
1.Sd6 Sd5 2.Lc5 Sce7 3.La3 Dxc3 4.Dc1
  =  (-0.05)   Tiefe: 10   00:00:13  418kN
1.Sxg7 Kh8 2.Lg5 Sg8 3.Dh5 f5 4.Se8
  ±  (1.39)   Tiefe: 10   00:00:53  1652kN


But read here what Vasik Rajlich have written about such positions:

http://hornid.com/cgi-bin/ccc/topic_show.pl?pid=452145;hl=#pid452145

Best,
Eduard.



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