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Subject: Re: Sjeng 12.13 vs Movei

Author: Slater Wold

Date: 18:44:33 06/11/02

Go up one level in this thread


On June 11, 2002 at 19:46:15, Uri Blass wrote:

>I forgot reason 5 that says that sjeng is better on tactics than Movei even
>without pondering.
>
>It is possible that a good example  the first game when I suspect that Movei
>blundered by Rxh2(I am not sure if there is a move to save the game at that
>point and if there is no move to save the game it is a positional win of Sjeng
>because  the score of sjeng jumped only after Rxh2.
>
>Here is the relevant position:
>
>[D]2r2k1r/pppb2q1/2np1n2/6N1/2Q2p2/1B6/PPP2PPB/R3R1K1 b - - 0 21 am Rxh2

New game
2r2k1r/pppb2q1/2np1n2/6N1/2Q2p2/1B6/PPP2PPB/R3R1K1 b - - 0 1

Analysis by Fritz 7:

1...Rxh2!
  ²  (0.41)   Depth: 7/22   00:00:00  366kN
1...Rxh2!
  =  (0.25)   Depth: 7/22   00:00:00  375kN
1...Rxh2 2.Kxh2 Nd4 3.Nh3 Bxh3 4.gxh3 Nf3+ 5.Kh1
  =  (0.22)   Depth: 7/22   00:00:00  383kN
1...Rxh2 2.Kxh2 Nd4 3.Nh3 Bxh3 4.gxh3 Nf3+ 5.Kh1 Nxe1 6.Rxe1
  =  (0.22)   Depth: 8/23   00:00:00  470kN
1...Rxh2--
  ²  (0.50)   Depth: 9/24   00:00:01  862kN
1...Rxh2 2.Kxh2 Nd4 3.c3 Nxb3 4.Ne6+ Bxe6 5.Qxe6 Re8 6.Qxb3
  ±  (1.16)   Depth: 9/28   00:00:01  1269kN
1...Rh4!
  ±  (1.12)   Depth: 9/28   00:00:01  1370kN
1...Rh4!
  ±  (0.97)   Depth: 9/28   00:00:01  1415kN
1...Rh4!
  ²  (0.66)   Depth: 9/28   00:00:01  1511kN
1...Rh4 2.Bxf4 Rg4 3.g3 Ne5 4.Qb4 Re8 5.Qd2 Qh8
  ²  (0.50)   Depth: 9/29   00:00:02  1802kN
1...Rh4 2.Bxf4 Rg4 3.Re6 b5 4.Rxf6+ Qxf6 5.Nh7+ Kg7 6.Nxf6 bxc4 7.Nxg4
  ²  (0.44)   Depth: 10/30   00:00:04  3907kN
1...Rh4 2.Bxf4 Ne5 3.Bxe5 Rxc4 4.Bxf6 Qg8 5.Re7 Bf5 6.Rae1 Qd5 7.Bxc4
  ²  (0.69)   Depth: 11/32   00:00:09  8292kN
1...Ne5!
  ²  (0.66)   Depth: 11/34   00:00:25  22526kN
1...Ne5 2.Qxf4 Rh5 3.Ne4 Rf5 4.Qg3 Nfg4 5.f3 Nxh2 6.Qxg7+ Kxg7 7.Kxh2
  ²  (0.56)   Depth: 11/34   00:00:26  23058kN
1...Ne5 2.Qxf4 Rh5 3.Ne4 Rf5 4.Qg3 Nfg4 5.f4 Nc6 6.c3 Rh5 7.Bd1
  ²  (0.59)   Depth: 12/33   00:00:30  26966kN

(W,  11.06.2002)


Every engine I tested saw Rxh2.  And they all fail low in about 3 seconds.

Movei didn't see something relavent.



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