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Subject: Re: How many programs can see the draw in the 2nd game of DB vs Kasparov?

Author: Uri Blass

Date: 14:12:04 02/27/01

Go up one level in this thread


On February 27, 2001 at 16:55:39, Ed Panek wrote:

>On February 27, 2001 at 13:35:33, Enrique Irazoqui wrote:
>
>>On February 27, 2001 at 10:49:29, Uri Blass wrote:
>>
>>>On February 27, 2001 at 10:07:31, Robert Hyatt wrote:
>>>
>>>>On February 27, 2001 at 08:24:14, Jorge Pichard wrote:
>>>>
>>>>>I believe that the drawish move was Qe3! instead of the Qxc6?  Can somebody
>>>>>post the FEN string that produce the graphical position for me. Plus I wonder
>>>>>what program save the draw in the shortest time possible?
>>>>
>>>>
>>>>None can see this.  It is a 60+ ply repetition.  Way beyond anything we can
>>>>see today.
>>>
>>>We need to test all the programs in order to say that none can see it.
>>>
>>>Some programs like dark thought are not available so we cannot know that none
>>>can see it.
>>>
>>>The fact that it is 60 ply repetition is not a proof that none can see it
>>>because programs only to need the right extensions to see the relevant 60 plies
>>>forward.
>>>
>>>If you are wrong then testing only one program is enough to prove it.
>>>
>>>Uri
>>
>>Deep Fritz doesn't see the draw yet after one hour, but it's getting there. Now
>>I am trying with Deep Shredder and I might leave one of them computing the
>>position overnight.
>>
>>What has been the evaluation that came closest to 0.00?
>>
>>Enrique
>>
>>Comp Deep Blue - Kasparov,G
>>1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - - 0 1
>>
>>Analysis by DEEP FRITZ   :
>>
>>45...Qxc6--
>>  ±  (0.91)   Depth: 1/3   00:00:00
>>45...Qxc6--
>>  ±  (0.91)   Depth: 1/6   00:00:00
>>45...Qxc6 46.dxc6 Re8 47.Ra7+ Re7
>>  ±  (0.78)   Depth: 2/8   00:00:00
>>45...Qxc6 46.dxc6 Re8 47.g3
>>  ±  (0.84)   Depth: 3/10   00:00:00
>>45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8
>>  ±  (0.94)   Depth: 4/10   00:00:00  2kN
>>45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 48.Ke2
>>  ±  (1.03)   Depth: 5/9   00:00:00  4kN
>>45...Qxc6 46.dxc6 Be7 47.Bd5+ Ke8 48.c7 Rc8 49.Ra7
>>  ±  (1.16)   Depth: 6/13   00:00:00  10kN
>>45...Qxc6 46.dxc6 Rd8 47.Ra5 Ke7 48.Rxb5 Bc7 49.Rb7
>>  ±  (1.37)   Depth: 7/17   00:00:00  34kN
>>45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 48.Rb7 Ke7 49.Ke2 Kd6 50.Rxb5
>>  +-  (1.44)   Depth: 8/17   00:00:00  76kN
>>45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 48.Rb7 Ke7 49.Ke2 Kd6 50.Rxb5
>>  +-  (1.44)   Depth: 9/19   00:00:00  132kN
>>45...Qxc6 46.dxc6 Rc8 47.Ra5 Ke7 48.Rxb5 Rc7 49.g3 Ra7 50.Ke2 Bc7
>>  +-  (1.56)   Depth: 10/19   00:00:00  307kN
>>45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Ra8
>>  +-  (1.59)   Depth: 11/24   00:00:01  1156kN
>>45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Rc7 49.Rxb5 Ra7 50.Bd5 Ra1+
>>  +-  (1.75)   Depth: 12/23   00:00:01  1833kN
>>45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Rc7 49.Rxb5 Ke7
>>  +-  (1.66)   Depth: 13/24   00:00:02  3093kN
>>45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Rc7 49.Rxb5 Ke7
>>  +-  (1.87)   Depth: 14/27   00:00:05  6179kN
>>45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Bd5 Rc7 49.Ra8+ Ke7 50.Rg8 h5 51.Rxg7+
>>  +-  (1.94)   Depth: 15/29   00:00:11  13091kN
>>45...Qe3!
>>  +-  (1.91)   Depth: 15/40   00:00:43  51310kN
>>45...Qe3 46.Qd7+ Kg8 47.Qxd6 Rf8 48.Bf3 Qxc3 49.Qc5 Qc1+ 50.Kf2 Qc2+ 51.Kg1
>>  +-  (1.69)   Depth: 16/42   00:01:51  135971kN
>>45...Qe3!
>>  ±  (1.37)   Depth: 17/46   00:05:09  378813kN
>>45...Qe3! 46.Qxd6 Re8 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 Qf4+ 51.Kg1
>>  ±  (1.16)   Depth: 17/46   00:07:23  543340kN
>>45...Qe3 46.Qxd6 Re8 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 Qf4+ 51.Kg1
>>  ±  (1.12)   Depth: 18/46   00:12:07  896606kN
>>45...Qe3 46.Qxd6 Re8 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 Qf4+ 51.Kg1
>>  ±  (1.00)   Depth: 19/50   00:25:38  1907813kN
>>45...Qe3!
>>  ²  (0.69)   Depth: 20/52   00:56:36  4195172kN
>>
>>(Irazoqui, Cadaqués 27.02.2001)
>I will leave Hiarcs 732 and also Tiger 13 overnite on a PIII 800 and an Athlon
>1248Mhz and see what they come up with.
>
>
>Ed

I guess that they will not find the draw.

I give yace bigger chances to find the draw.

All the program that I know except yace are stupid when they need to see
repetition based on ideas of perpetual check.

Uri



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