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Subject: Re: Testposition - ..c4! [CM9 X in 6 sec]

Author: Kurt Utzinger

Date: 12:45:19 02/21/03

Go up one level in this thread


On February 21, 2003 at 14:08:19, bobby palacios wrote:

>Taken from game 14 of my 24 game match at game in 2.5hrs between Fritz8 and
>Shredder 7.
>
>[D] 2r3k1/pp1b1pp1/3q1n1p/2pPR3/5P2/1PNQ4/P1B3PP/7K b - - 0 23
>
>In this seemingly equal position, Fritz 8 played the nice pawn sac ..c4!  How
>many programs will play ..c4 and give black a better position.  In the game
>Fritz 8 gave itself a 3/4 pawn advantage.

New game
2r3k1/pp1b1pp1/3q1n1p/2pPR3/5P2/1PNQ4/P1B3PP/7K b - - 0 1

Analysis by The King 3.23: [CM9_X on P4 1.8/32 MB hash]

1...Bg4 2.Ne4 Nxe4 3.Qxe4
  =  (0.25)   Depth: 3   00:00:00
1...Re8 2.Qe2 Rxe5 3.fxe5
  =  (0.15)   Depth: 3   00:00:00
  =  (0.15)   Depth: 4   00:00:00
1...Rd8 2.Ne4 Nxe4 3.Qxe4 g6 4.Qe2
  =  (-0.09)   Depth: 4   00:00:00
  =  (0.22)   Depth: 5   00:00:00
1...Kf8 2.Qe2 Bg4 3.Qb5 b6
  =  (0.19)   Depth: 5   00:00:00
1...Rf8 2.Kg1 Qb6 3.Re7 c4+ 4.Qe3
  =  (0.16)   Depth: 5   00:00:00
1...Re8 2.Rxe8+ Bxe8 3.Qe3 Bd7 4.Qe5 Qf8 5.Bd3
  =  (0.15)   Depth: 5   00:00:00
  =  (0.11)   Depth: 6   00:00:00  79kN
1...Kf8 2.Ne4 Nxe4 3.Qxe4 Qa6 4.Qe2 Qxe2 5.Rxe2
  =  (0.04)   Depth: 6   00:00:01  121kN
  ²  (0.28)   Depth: 7   00:00:01  194kN
1...Re8 2.Rxe8+ Bxe8 3.Qe3 Bd7 4.Qe5 Qxe5 5.fxe5 Ng4 6.Ne4 Nxe5 7.Nxc5
  =  (0.18)   Depth: 7   00:00:01  243kN
  =  (0.20)   Depth: 8   00:00:03  432kN
1...Kf8 2.h3 Kg8 3.Ne4 Nxe4 4.Qxe4 f5 5.Qe2 Rf8
  =  (0.02)   Depth: 8   00:00:05  699kN
1...c4 2.Qd4 cxb3 3.Bxb3 b5 4.Ne4 Nxe4 5.Rxe4 Rc1+ 6.Bd1 Be6 7.Re5 a5 8.Qd3
  =  (-0.09)   Depth: 8   00:00:06  853kN
  ³  (-0.50)   Depth: 12   00:01:16  13636kN

(Utzinger, MyTown 21.02.2003)




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