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Subject: Re: is hydra now stronger than deep blue?

Author: Uri Blass

Date: 08:33:10 05/27/05

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On May 27, 2005 at 10:51:54, Vincent Diepeveen wrote:

>On May 26, 2005 at 22:14:43, Lar Mader wrote:
>
>>>>
>>>>I think that it is correct only if we have not the games
>>>>but based on analyzing the games deeper blue did blunders that even free
>>>>programs can avoid today at tournament time control on fast hardware.
>>>>
>>>>[D]R7/1r3kp1/1qQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/6K1 w - - 0 1
>>>>
>>>>finding Kh1 and not Kf1 is easy for free programs like Fruit and Yace when
>>>>Deep Blue failed to find that move.
>>>>
>>>>I saw no impressive move in the games of deep blue against kasparov that top
>>>>programs need hours to find so I guess that the top programs of today are simply
>>>>better than Deep Blue.
>>>>
>>>>Uri
>>>
>>>I need to correct it for yace
>>>
>>>Yace finds Kh1 but later changes it's mind to Kf1
>>>I thought that it rejected Kf1 for the correct reason when it has in the pv Qe3
>>>but later it changes it's mind and has in the pv Qxc6 and not Qe3.
>>>
>>>Fruit seems to have no problem with that position.
>>>
>>>New game, 40'/40
>>>R7/1r3kp1/1qQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/6K1 w - - 0 1
>>>
>>>Analysis by Yace 0.99.87:
>>>
>>>1.Qxb6 Rxb6
>>>  =  (0.13)   Depth: 1   00:00:00
>>>1.Kh2 Qxc6 2.dxc6
>>>  =  (0.24)   Depth: 1   00:00:00
>>>1.Kf1 Qxc6 2.dxc6
>>>  ²  (0.27)   Depth: 1   00:00:00
>>>1.Kf1 Qxc6 2.dxc6
>>>  ²  (0.27)   Depth: 1   00:00:00
>>>1.Kf1 Qxc6 2.dxc6
>>>  ²  (0.27)   Depth: 2   00:00:00
>>>1.Kf1 Qxc6 2.dxc6
>>>  ²  (0.27)   Depth: 2   00:00:00
>>>1.Kf1 Qxc6 2.dxc6
>>>  ²  (0.27)   Depth: 3   00:00:00
>>>1.Qxb6 Rxb6 2.Ra7+ Bc7 3.Rxc7+ Kf8
>>>  ²  (0.28)   Depth: 3   00:00:00
>>>1.Qxb6 Rxb6 2.Ra7+ Be7 3.g3
>>>  ²  (0.33)   Depth: 3   00:00:00
>>>1.Qxb6 Rxb6 2.Ra7+ Be7 3.g3
>>>  ²  (0.33)   Depth: 3   00:00:00
>>>1.Qxb6 Rxb6 2.g3 h5 3.Ra7+ Be7
>>>  =  (0.24)   Depth: 4   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Ke7
>>>  =  (0.25)   Depth: 4   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Rc7 3.g3
>>>  ²  (0.27)   Depth: 4   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Rc7 3.g3
>>>  ²  (0.27)   Depth: 4   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Bc7 4.Rxc7+ Kf8
>>>  ²  (0.67)   Depth: 5   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Be7 4.Bd5+ Ke8 5.c7 Rc8
>>>  ²  (0.69)   Depth: 5   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Be7 4.Bd5+ Ke8 5.c7 Rc8
>>>  ²  (0.69)   Depth: 5   00:00:00
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Kf8 4.Rd7 Be7
>>>  ±  (0.72)   Depth: 6/16   00:00:00  21kN
>>>1.Kh2 Qxc6 2.dxc6 Rb8 3.Ra7+ Be7 4.Bd5+ Ke8 5.c7 Rb6 6.c8Q+ Bd8
>>>  ±  (0.73)   Depth: 6/16   00:00:00  37kN
>>>1.Kh2 Qxc6 2.dxc6 Rb8 3.Ra7+ Kf8 4.Rd7 Be7 5.c7 Rc8
>>>  ±  (0.81)   Depth: 6/16   00:00:00  40kN
>>>1.Kh2 Qxc6 2.dxc6 Rb8 3.Ra7+ Kf8 4.Rd7 Be7 5.c7 Rc8
>>>  ±  (0.81)   Depth: 6/18   00:00:01  41kN
>>>1.Kh2 Rb8 2.Qd7+ Kg8 3.Ra7 Bf8 4.g3 Qf2+ 5.Bg2 Kh7 6.d6
>>>  ±  (0.71)   Depth: 7/18   00:00:01  120kN
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Kf8 4.Rd7 Kg8
>>>  ±  (0.72)   Depth: 7/18   00:00:01  133kN
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Kf8 4.Rd7 Be7 5.c7 Rc8
>>>  ±  (0.85)   Depth: 7/18   00:00:01  142kN
>>>1.Kf1 Qxc6 2.dxc6 Rb8 3.Ra7+ Kf8 4.Rd7 Be7 5.c7 Rc8
>>>  ±  (0.85)   Depth: 7/20   00:00:01  185kN
>>>1.Kf1 Rb8 2.Qd7+ Kg8 3.Ra7 Bf8 4.Qe6+ Kh7 5.Qf7 Qe3 6.Qg6+ Kh8
>>>  ±  (0.72)   Depth: 8/21   00:00:01  261kN
>>>1.Kf1 Rb8 2.Qd7+ Kg8 3.Ra7 Bf8 4.Qe6+ Kh7 5.Qf7 Qe3 6.Qg6+ Kh8
>>>  ±  (0.72)   Depth: 8/22   00:00:01  410kN
>>>1.Kf1 Rb8 2.Qd7+ Kg8 3.Ra7 Bf8 4.Qf7+ Kh7 5.Ke2 Rd8 6.Qg6+ Kg8 7.Rf7
>>>  ²  (0.64)   Depth: 9/22   00:00:01  561kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Be7 4.Ra7 h5 5.Bd5+ Kf8 6.c7 Ra8
>>>  ²  (0.65)   Depth: 9/22   00:00:01  907kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kg8 4.Ra7 Kh7 5.Rd7 Bf8 6.c7 Rc8
>>>  ±  (0.71)   Depth: 9/22   00:00:01  970kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kg8 4.Ra7 Kh7 5.Rd7 Bf8 6.c7 Rc8
>>>  ±  (0.71)   Depth: 9/26   00:00:02  1113kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kg8 4.Ra7 Kh7 5.Rd7 Bf8 6.c7 Rc8 7.g3
>>>  ±  (0.80)   Depth: 10/26   00:00:02  1479kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 h5 5.Rd7 Be7 6.c7 Bd8
>>>  ±  (0.81)   Depth: 10/30   00:00:02  2318kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7
>>>  ±  (0.83)   Depth: 10/30   00:00:02  2450kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7
>>>  ±  (0.83)   Depth: 10/30   00:00:02  2670kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Bd5 Rb8 6.Rf7+ Ke8 7.Rxg7 Rd8
>>>  ±  (1.03)   Depth: 11/32   00:00:03  4174kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Bd5 Rb8 6.Rf7+ Ke8 7.Rxg7 Rd8
>>>  ±  (1.03)   Depth: 11/34   00:00:03  4975kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Rb8 6.Rd7 Be7 7.c7 Kg8
>>>  ±  (1.08)   Depth: 12/41   00:00:07  10063kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Rb8 6.Rd7 Be7 7.c7 Rb7 8.c8Q+
>>>Kf7
>>>  ±  (1.09)   Depth: 12/41   00:00:08  10827kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Bb1
>>>  ±  (1.11)   Depth: 12/41   00:00:09  11882kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kg8 4.Ra7 Kh7 5.Rd7 Bf8 6.c7 Rb7 7.c8Q Kh8
>>>  ±  (1.12)   Depth: 12/41   00:00:11  14655kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kg8 4.Ra7 Rc8 5.Rb7 Rb8 6.Rd7 Rc8 7.Rxd6 Kh7
>>>  ±  (1.14)   Depth: 12/41   00:00:11  15138kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kg8 4.Ra7 Rc8 5.Rb7 Rb8 6.Rd7 Rc8 7.Rxd6 Kh7
>>>  ±  (1.14)   Depth: 12/41   00:00:11  15138kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.h4 Kg8 6.Rb7 Rb8 7.Rd7
>>>  ±  (0.93)   Depth: 13/45   00:00:15  20137kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Rb8 6.Rd7 Rc8 7.Rxd6 Rc7
>>>  ±  (0.94)   Depth: 13/45   00:00:16  21682kN
>>>1.Kh2 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Ke8 6.Rxb5 Rc7 7.g3 h5 8.Ra5
>>>  +-  (1.50)   Depth: 13/46   00:00:23  30638kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Rb8 6.Rd7 Rc8 7.Rxd6 h5
>>>  +-  (1.51)   Depth: 13/46   00:00:34  42727kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Rc7 6.Rxb5 Ke8 7.g3 Bxb4 8.cxb4
>>>Ke7
>>>  +-  (1.53)   Depth: 13/46   00:00:39  48302kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 Rc7 6.Rxb5 Ke8 7.g3 Bxb4 8.cxb4
>>>Ke7
>>>  +-  (1.53)   Depth: 13/46   00:00:39  48546kN
>>>1.Kf1 Rb8 2.Ra6 Qe3 3.Qxd6 Re8 4.h4 Re7 5.Bf3 Qc1+ 6.Kf2 Qd2+ 7.Kg3 Qe1+ 8.Kh3
>>>Qh1+ 9.Kg4 e4 10.Qf4 exf3 11.Qxf3
>>>  ±  (1.31)   Depth: 14/46   00:02:04  140058kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Kh2 h5 6.Rb7 Rb8 7.Rd7 Rc8 8.Rxd6
>>>Kf7
>>>  ±  (1.32)   Depth: 14/54   00:02:36  175070kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 h5 6.Rxb5 Ke7 7.Ra5 Rc7 8.g4 h4
>>>  +-  (1.45)   Depth: 14/54   00:02:44  184404kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Rb7 h5 6.Rxb5 Ke7 7.Ra5 Rc7 8.g4 h4
>>>  +-  (1.45)   Depth: 14/54   00:02:44  184837kN
>>>1.Kh1 Rb8 2.Ra6 Qxc6 3.dxc6 Rc8 4.Ra5 Ke8 5.Kh2 Bc7 6.Rxb5 Rb8 7.Rc5 g6 8.fxg6
>>>Ke7
>>>  +-  (1.48)   Depth: 15/54   00:03:02  204824kN
>>>1.Kf1 Rb8 2.Ra6 Qe3 3.Qxd6 Re8 4.h4 Re7 5.Bf3 Qc1+ 6.Kf2 Qd2+ 7.Kg3 Qe1+ 8.Kg4
>>>e4 9.Qd8 Rd7 10.Qxd7+ Kf8
>>>  +-  (1.49)   Depth: 15/59   00:04:09  277144kN
>>>1.Kf1 Rb8 2.Ra6 Qe3 3.Qxd6 Re8 4.h4
>>>  +-  (1.49)   Depth: 15/59   00:05:07  339937kN
>>>1.Kf1 Rb8 2.Ra6 Qe3 3.Qxd6 Re8 4.h4
>>>  +-  (1.49)   Depth: 15/59   00:05:44  380942kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Bd5 Rc7 6.Ra8+ Ke7 7.Rg8 h5 8.Rxg7+
>>>Ke8 9.Rg8+ Bf8 10.Rh8 Rg7 11.Rxh5 Bxb4 12.cxb4
>>>  +-  (1.81)   Depth: 16/59   00:10:07  653799kN
>>>1.Kf1 Rb8 2.Ra6 Qxc6 3.dxc6 Kf8 4.Ra7 Rc8 5.Bd5 Rc7 6.Ra8+ Ke7 7.Rg8 h5 8.Rxg7+
>>>Ke8 9.Rg8+ Bf8 10.Rh8 Rg7 11.Rxh5 Bxb4 12.cxb4
>>>  +-  (1.81)   Depth: 16/61   00:11:43  766649kN
>>>
>>>(,  26.05.2005)
>>>
>>>Uri
>>
>>
>>Shredder 9 needs 10 mins 13 secs (on my P4 3.06 Ghz machine) to realize that Kh1
>>is correct.  But given how fast Deeper Blue was, this is still a pretty good
>>result:
>
>Deep Blue was not 'faster' when expressed in search depth.
>
>Deep Blue, as we can see in its logfiles searched 10-12 ply. In 1997 that was a
>very big search depth if you realize they didn't use nullmove and did do a huge
>search in hardware.
>
>If you would let the Deep Blue from back then play now, then it would be about
>2200-2300 rated now.

I think that almost nobody except you believe in it.
I believe that deep Blue is weaker than the top programs of today but
even deep thought performed clearly better than 2200-2300.

Human learned and improved but I do not believe that 2200-2300 of today are
stronger than 2500 of the time of deep thought.

Uri



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