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Subject: Wow.. Shredder 7.04 still stuck at 16 ply

Author: William Rex

Date: 17:54:27 01/03/04

,i - Ruffian 2.0.0
8/PR3p2/1K2pk2/8/6p1/1B2n3/8/r7 w - - 0 1

Analysis by Shredder 7.04:

2.a8Q Rxa8
  -+  (-4.91)   Depth: 1/2   00:00:00
2.a8Q Rxa8
  -+  (-4.91)   Depth: 1/2   00:00:00
2.a8R Rxa8
  -+  (-4.31)   Depth: 1/2   00:00:00
2.a8R Rxa8
  -+  (-3.92)   Depth: 1/2   00:00:00
2.a8R Rxa8
  -+  (-3.20)   Depth: 1/2   00:00:00
2.Rb8
  -+  (-1.67)   Depth: 1/4   00:00:00
2.Rb8
  -+  (-1.67)   Depth: 1/4   00:00:00
2.Rb8 Ke7
  µ  (-1.38)   Depth: 2/7   00:00:00
2.Rb8 Ng2
  =  (-0.16)   Depth: 2/7   00:00:00
2.Rb8 Ng2 3.a8Q Rxa8 4.Rxa8
  +-  (1.62)   Depth: 2/7   00:00:00
2.Rb8 Rxa7 3.Kxa7
  =  (0.08)   Depth: 3/4   00:00:00
2.Rb8 Rxa7 3.Kxa7
  =  (0.00)   Depth: 3/7   00:00:00
2.Rb8 Rxa7 3.Kxa7 g3
  =  (-0.21)   Depth: 4/15   00:00:00
2.Rb8 Nd5+ 3.Bxd5 Rxa7 4.Kxa7 exd5
  =  (-0.21)   Depth: 5/12   00:00:00
2.Rb8 Ke5 3.Kc7 Rxa7+ 4.Rb7 Rxb7+ 5.Kc6 Rxb3
  ³  (-0.46)   Depth: 6/14   00:00:00
2.Rb8 Ke5 3.a8Q Nd5+ 4.Bxd5 Ra6+ 5.Kxa6
  ³  (-0.46)   Depth: 6/14   00:00:00
2.Rb8 Ke5 3.a8Q Nd5+ 4.Bxd5 Rb1+ 5.Ka6 Rb6+ 6.Kxb6
  =  (-0.21)   Depth: 7/15   00:00:00  29kN
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Rg8
  =  (-0.04)   Depth: 7/17   00:00:00  37kN
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Ra5+ Kf6 6.Ra1
  =  (0.04)   Depth: 8/17   00:00:00  63kN, tb=10
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Ra2 g3 6.Ra1
  =  (-0.21)   Depth: 9/17   00:00:00  84kN, tb=13
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Ra1 f4 6.Kc5
  ³  (-0.52)   Depth: 9/19   00:00:00  121kN, tb=20
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Rg8 f4 6.Kc5 f3
  ³  (-0.37)   Depth: 10/19   00:00:01  226kN, tb=54
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Ra1 Kd4
  =  (-0.12)   Depth: 11/19   00:00:02  362kN, tb=106
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Ra1 f4 6.Kc5 Ke4 7.Bxe6
  =  (-0.04)   Depth: 11/21   00:00:02  455kN, tb=171
2.Rb8 Ke5 3.a8Q Rxa8 4.Rxa8 f5 5.Kc5 f4 6.Re8 g3 7.Rg8 Kf5
  =  (-0.16)   Depth: 12/21   00:00:04  675kN, tb=348
2.Rb8 g3 3.a8Q Rxa8 4.Rxa8 g2 5.Rg8 Kf5 6.Rg7 Ng4 7.Bc2+ Kf4 8.Rxf7+ Ke3 9.Rf1
gxf1Q
  ³  (-0.41)   Depth: 13/26   00:00:07  1255kN, tb=608
2.Rb8 g3 3.a8Q Rxa8 4.Rxa8 g2 5.Rg8 Kf5 6.Bc2+ Kf4 7.Bd1 Nxd1 8.Rxg2
  ³  (-0.64)   Depth: 13/28   00:00:08  1669kN, tb=702
2.Rb8 g3 3.a8Q Rxa8 4.Rxa8 g2 5.Rg8 Kf5 6.Bd1 Nxd1 7.Rxg2 f6 8.Kc5
  ³  (-0.67)   Depth: 14/30   00:00:22  4205kN, tb=1932
2.Rb8 g3 3.a8Q Rxa8 4.Rxa8 g2 5.Rg8 Kf5 6.Bd1 Nxd1 7.Rxg2 f6 8.Kc5
  µ  (-0.75)   Depth: 15/31   00:00:37  7028kN, tb=3632
2.Rb8 g3 3.a8Q Rxa8 4.Rxa8 g2 5.Rg8 Kf5 6.Bd1 Kf4 7.Kc5 f5 8.Kc6 Nxd1
  µ  (-1.00)   Depth: 16/34   00:01:07  12475kN, tb=7175
2.Rb8 g3 3.a8Q Rxa8 4.Rxa8 g2 5.Rg8 Kf5 6.Bd1 Kf4 7.Kb5 f5 8.Rxg2 Nxg2 9.Kb6
  µ  (-1.09)   Depth: 16/35   00:01:19  15616kN, tb=8757

(, none 03.01.2004)


On January 03, 2004 at 16:44:39, F. Jermann wrote:

>The following position occured in a game played yesterday by me against an ELO
>2300 player. After almost 5 hours of fight, the move Kb6 was the last bad
>move...
>
>Interestingly many engines have 'problems' to see the winning move g4! whereas
>others find it almost immediately. Maybe a good test for 'pushed pawn' code?!
>
>[d] 8/PR3p2/1K2pk2/6p1/8/1B2n3/8/r7 b - - 2 53 bm g4;black wins!
>
>Best,
>Frank

Re: Wow.. Shredder 7.04 still stuck at 16 ply m.d.hurd 19:02:14 01/03/04
- Re: Wow.. Shredder 7.04 still stuck at 16 ply F. Jermann 01:20:20 01/04/04
- Re: Wow.. Shredder 7.04 still stuck at 16 ply William Rex 22:08:09 01/03/04
  - Re: Wow.. Shredder 7.04 still stuck at 16 ply F. Jermann 01:05:51 01/04/04
    - haha you're totally right William Rex 01:16:48 01/04/04

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