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Subject: Re: How many programs would play strong like Karpov did today ?

Author: Christopher A. Morgan

Date: 19:41:56 01/11/03

Go up one level in this thread



Ruffian 1.0.1 on Athlon 750, 128 MB hash likes g5 enough to stick with it after
after 24 seconds for five minutes and depth of 10/24 at the 24 second mark.

New game
r2qk2r/pb1nbppp/1p6/2pP4/5B2/P1P2N2/2Q2PPP/R3KB1R b KQkq - 0 1

Analysis by Ruffian 1.0.1:

1...Bxd5 2.0-0-0
  =  (-0.19)   Depth: 1/1   00:00:00
1...Bxd5 2.0-0-0
  =  (-0.19)   Depth: 2/6   00:00:00
1...g5 2.d6 Bxf3 3.dxe7 Qxe7+
  ì  (-0.98)   Depth: 2/7   00:00:00
1...g5 2.d6 Bxf3 3.dxe7 Qxe7+
  ì  (-0.98)   Depth: 3/7   00:00:00
1...g5 2.Bg3 Bxd5 3.0-0-0 Bxf3 4.gxf3
  3  (-0.56)   Depth: 4/12   00:00:00
1...Bxd5 2.Be2 g5 3.Bg3
  ì  (-1.17)   Depth: 4/12   00:00:00
1...Bxd5 2.0-0-0 Bxf3 3.gxf3 0-0 4.Rg1
  ì  (-1.15)   Depth: 5/12   00:00:00
1...Bxd5 2.0-0-0 Be6 3.Bd3 g5 4.Be5 Nxe5 5.Nxe5
  ²  (0.29)   Depth: 6/13   00:00:00  42kN
1...g5 2.Bg3 Bxd5 3.Qf5 Bxf3 4.Qxf3 0-0
  ì  (-1.13)   Depth: 6/15   00:00:00  88kN
1...g5 2.Bg3 Bxd5 3.0-0-0 Bxf3 4.gxf3 0-0 5.Rg1
  ì  (-0.95)   Depth: 7/16   00:00:00  159kN
1...g5 2.Bg3 Bxd5 3.0-0-0 Be6 4.Bd3 c4 5.Bxh7 Bxa3+
  =  (-0.10)   Depth: 8/19   00:00:01  419kN
1...Bxd5 2.Rd1 Bxf3 3.gxf3 a6 4.Bh3 Ra7 5.Bf5 c4
  3  (-0.69)   Depth: 8/19   00:00:02  788kN
1...Bxd5
  3  (-0.34)   Depth: 9/19   00:00:03  1214kN
1...Bxd5 2.0-0-0 Bxf3 3.gxf3 g5 4.Be3 c4 5.Qa4 b5 6.Qxb5 Bxa3+
  ²  (0.55)   Depth: 9/19   00:00:04  1551kN
1...g5 2.Bg3 g4 3.Ne5 Nxe5 4.Bxe5 f6 5.Qa4+ Kf7 6.d6 fxe5 7.dxe7 Kxe7 8.Qxg4
  =  (0.12)   Depth: 9/22   00:00:07  2405kN
1...0-0 2.0-0-0 c4 3.d6 Bf6 4.Re1 Bxf3 5.gxf3 Bg5 6.Qf5 Bxf4+ 7.Qxf4
  =  (-0.03)   Depth: 9/22   00:00:11  3920kN
1...0-0 2.0-0-0 c4 3.Kb2 b5 4.Qf5 g6 5.Qh3 Bc5 6.Ng5
  =  (-0.02)   Depth: 10/23   00:00:18  6781kN
1...g5 2.Bg3 g4 3.Ne5 Nxe5 4.Bxe5 0-0 5.Qe2 f6 6.Bf4 Bxd5 7.Qxg4+
  =  (-0.22)   Depth: 10/24   00:00:24  9001kN
1...g5 2.Be3 g4 3.Ng1 Qc7 4.Qe4 Qd6 5.0-0-0 0-0-0 6.Bf4 Qf6
  =  (-0.08)   Depth: 11/25   00:00:48  16995kN
1...g5 2.Be3 g4 3.Ng1 Qc7 4.Qe4 Qd6 5.Bc4 0-0-0 6.Kf1 Nf6 7.Qf5+ Kb8
  =  (-0.08)   Depth: 12/26   00:01:27  31080kN
1...g5 2.Bg3 g4 3.Ng1 Bxd5 4.0-0-0 Be6 5.Bb5 c4 6.Qa4 Bxa3+ 7.Qxa3 Qg5+ 8.Rd2
Qxb5 9.Qd6
  =  (0.01)   Depth: 13/31   00:04:21  91957kN

(11.01.2003)

Shredder 7 first likes 0-0 after 2:09 and depth of 13/34 and sticks with it for
the five minutes:

New game
r2qk2r/pb1nbppp/1p6/2pP4/5B2/P1P2N2/2Q2PPP/R3KB1R b KQkq - 0 1

Analysis by Shredder 7:

1...Bxd5
  ì  (-1.34)   Depth: 1/1   00:00:00
1...Bxd5
  ì  (-1.34)   Depth: 1/1   00:00:00
1...Bxd5 2.Qe2
  ì  (-0.99)   Depth: 2/4   00:00:00
1...Bxd5 2.Rd1
  3  (-0.69)   Depth: 2/4   00:00:00
1...0-0 2.Qg6
  ì  (-0.80)   Depth: 2/4   00:00:00
1...0-0 2.Bc4
  ì  (-0.91)   Depth: 2/4   00:00:00
1...g5 2.Kd1
  ì  (-1.03)   Depth: 2/10   00:00:00
1...g5 2.Be3 Bxd5
  ì  (-1.11)   Depth: 2/10   00:00:00
1...g5 2.Be3 Bxd5
  ì  (-1.11)   Depth: 3/4   00:00:00
1...0-0 2.Qxh7+ Kxh7 3.Ng5+ Bxg5
  ì  (-1.12)   Depth: 3/6   00:00:00
1...0-0 2.Bc4 Re8
  ì  (-1.29)   Depth: 3/8   00:00:00
1...0-0 2.Bc4 Qc7 3.Bxc7
  ì  (-1.04)   Depth: 4/7   00:00:00
1...0-0 2.Bc4 b5 3.Bxb5 Bxd5
  ì  (-0.80)   Depth: 4/9   00:00:00
1...g5 2.Qe2 gxf4
  ì  (-0.81)   Depth: 4/10   00:00:00
1...g5 2.Be3 g4 3.d6 Bxd6
  ì  (-1.05)   Depth: 4/10   00:00:00
1...g5 2.Be3 g4 3.d6 Bxd6
  ì  (-1.05)   Depth: 5/11   00:00:00
1...g5 2.Be3 Bxd5 3.Rd1 h6
  ì  (-0.80)   Depth: 6/15   00:00:00
1...g5 2.Be3 0-0 3.Bd3 h6 4.Bh7+ Kg7
  3  (-0.42)   Depth: 6/15   00:00:00
1...0-0 2.Bd3 Nf6 3.Bxh7+ Nxh7 4.Qxh7+ Kxh7 5.Ng5+ Bxg5
  3  (-0.43)   Depth: 6/15   00:00:00
1...0-0 2.Bd3 Nf6 3.Bxh7+ Nxh7 4.Qxh7+ Kxh7 5.Ng5+ Bxg5
  ì  (-0.78)   Depth: 6/15   00:00:00
1...0-0 2.Bd3 Nf6 3.0-0 Qd6 4.Bxd6
  ì  (-0.78)   Depth: 6/15   00:00:00
1...0-0 2.Bd3 Nf6 3.0-0 Qxd5 4.Rfe1 Rfe8
  ì  (-0.86)   Depth: 7/14   00:00:00  59kN
1...0-0 2.Bd3 Nf6 3.0-0 Qxd5 4.Rfe1 Rfe8 5.Rad1
  3  (-0.64)   Depth: 8/19   00:00:01  145kN
1...0-0 2.Bd3 g6 3.0-0 Bxd5 4.Rfe1 Bxf3 5.gxf3 Re8
  3  (-0.48)   Depth: 9/18   00:00:03  282kN
1...g5 2.Bg3 0-0 3.Bd3 Nf6 4.Bxh7+ Nxh7 5.d6
  3  (-0.49)   Depth: 9/25   00:00:04  440kN
1...g5 2.Bg3 0-0 3.Bd3 Nf6 4.c4 h6 5.0-0 Nxd5 6.cxd5 Bxd5
  3  (-0.49)   Depth: 9/25   00:00:04  469kN
1...g5 2.Bg3 0-0 3.Bd3 Nf6 4.c4 Re8 5.Nxg5 Ne4
  =  (-0.24)   Depth: 10/22   00:00:07  728kN
1...g5 2.Bg3 g4 3.Ne5 Nxe5 4.Bxe5 0-0 5.Bd3 f6 6.Bxh7+ Kh8 7.Bf4
  =  (-0.08)   Depth: 10/25   00:00:10  1153kN
1...0-0 2.Bd3 g6 3.0-0 Bxd5 4.Rfe1
  =  (-0.09)   Depth: 10/25   00:00:10  1208kN
1...0-0 2.Bd3 g6 3.0-0 Bxd5 4.Rfe1 Re8 5.Rad1 Bxf3 6.gxf3
  3  (-0.26)   Depth: 10/25   00:00:11  1296kN
1...0-0 2.Bd3 Nf6 3.c4 Bd6 4.Bxd6 Qxd6 5.0-0
  3  (-0.27)   Depth: 11/22   00:00:17  2029kN
1...g5 2.Bg3 0-0 3.Bd3 Nf6 4.c4 g4 5.Ng5 h6 6.Bh7+ Kg7 7.Ne6+ fxe6 8.Qg6+ Kh8
9.Qg7+
  3  (-0.28)   Depth: 11/29   00:00:21  2616kN
1...g5 2.Bg3 0-0 3.Bd3 Nf6 4.c4 g4 5.Ne5 Bd6 6.0-0
  3  (-0.28)   Depth: 11/29   00:00:22  2750kN
1...g5 2.Bg3 0-0 3.Bd3 h5 4.0-0-0 g4 5.Bh7+ Kh8 6.Ne5 Nxe5 7.Bxe5+ f6 8.Bf4 Bxd5
  =  (-0.25)   Depth: 12/32   00:00:47  5710kN
1...g5 2.Bg3 0-0 3.Qf5 Re8 4.0-0-0 Nf8 5.Ne5 Bf6 6.Ng4 Bg7 7.Bb5 Bc8
  =  (-0.15)   Depth: 13/34   00:01:54  13562kN
1...0-0 2.Bd3 Bxd5 3.Bxh7+ Kh8 4.Bf5 Bxf3 5.gxf3 Bg5 6.Bxg5 Qxg5 7.Qd2 Qxf5
8.Qh6+ gxh6
  =  (-0.16)   Depth: 13/34   00:02:09  15452kN
1...0-0 2.Bd3 g6 3.0-0 Bxd5 4.Rad1 Bxf3 5.gxf3 Bg5 6.Be4 Bxf4 7.Bxa8 Qg5+ 8.Kh1
  3  (-0.33)   Depth: 13/34   00:02:26  17826kN
1...0-0 2.Bd3 g6 3.Rd1 Bxd5 4.Bb5 Nf6 5.Bc6 Rc8 6.Bxd5 Nxd5 7.0-0 Re8 8.Rfe1
  =  (-0.25)   Depth: 14/31   00:03:12  23600kN

(11.01.2003)

On January 11, 2003 at 15:55:18, Thomas Lagershausen wrote:

>[D]r2qk2r/pb1nbppp/1p6/2pP4/5B2/P1P2N2/2Q2PPP/R3KB1R b KQkq - 12...0-0!
>
>Off course,d5 is a poison pawn.
>
>Not a easy job for todays programs!
>
>[Event "GMA"]
>[Site "Wijk aan Zee NED"]
>[Date "2003.01.11"]
>[Round "1"]
>[White "Krasenkow,M"]
>[Black "Karpov,An"]
>[Result "0-1"]
>[WhiteElo "2633"]
>[BlackElo "2688"]
>[EventDate "2003.01.11"]
>[ECO "E12"]
>
>1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 Nxd5 7. Qc2 Nxc3
>8. bxc3 Nd7 9. e4 c5 10. Bf4 Be7 11. d5 exd5 12. exd5 O-O 13. Rd1 Re8 14.
>Be2 c4 15. O-O Bxa3 16. Bxc4 Qf6 17. Ng5 Nf8 18. g3 h6 19. Ne4 Qf5 20. f3
>Ng6 21. Bc7 Rac8 22. Bb5 Rxc7 23. Bxe8 Bxd5 24. Nf6+ Qxf6 25. Rxd5 Rxc3 26.
>Qe4 Bc5+ 27. Kg2 Re3 28. Qa4 Re2+ 29. Kh1 Re1 0-1
>
>TL



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