Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: If you like to sove a mate...

Author: leonid

Date: 07:53:56 03/11/01

Go up one level in this thread


On March 11, 2001 at 10:29:27, Uri Blass wrote:

>On March 11, 2001 at 10:19:06, leonid wrote:
>
>>On March 11, 2001 at 06:24:10, Ingo Bauer wrote:
>>
>>>On March 10, 2001 at 19:39:55, leonid wrote:
>>>
>>>>On March 10, 2001 at 18:03:46, Ingo Bauer wrote:
>>>>
>>>>>On March 10, 2001 at 08:11:29, leonid wrote:
>>>>>
>>>>>>Hi!
>>>>>>
>>>>>>If you like to solve one light mate then you can try this:
>>>>>>
>>>>>>[D]nqNBNqn1/2QKQ3/Nq3qN1/n1rkr1n1/R1NbN1R1/1n1q1n2/8/Q2B2Q1 w - -
>>>>>>
>>>>>>Please, indicate your result.
>>>>>>
>>>>>>Thanks,
>>>>>>Leonid.
>>>>>Hello
>>>>>This is the Result of Gandalf4.32h on a Celeron@850! The time is nice too!
>>>>>
>>>>>Engine: Gandalf 4.32hUCI
>>>>>von Steen Suurballe
>>>>>  4.01	 0:55 	  +M8 	1.S4xf6+ Sxf6+ 2.Sxf6+ Dbxf6 3.Dgxd4+ Dxd4 4.Dxd4+ Sfxd4
>>>>>5.Dexe5+ Dxe5 6.Dxe5+ Dxe5 7.S8b6+ Sxb6+ 8.Sxb6+ (15.992.615) 288.1
>>>>>
>>>>>Bye Ingo
>>>>
>>>>What is exactly the time? Did I undestood correctly, 55 sec.?
>>>>
>>>>Thanks,
>>>>Leonid.
>>>
>>>Yes. Absolutlely correct! 55 Sekonds on a 850Celeron with 256 MB Hash. I
>>>repeated this with a deleted *.lrn File and got this result!
>>>
>>>  1.05	 0:00 	-3.88++ 	1.S4xf6+ (142.189) 203.1
>>>  1.05	 0:01 	 0.00 	1.S4xf6+ Sxf6+ 2.Sxf6+ Dbxf6 (275.085) 229.2
>>>  1.06	 0:01 	+0.01++ 	1.S4xb6+ (276.381) 230.3
>>>  1.06	 0:01 	+0.01 	1.S4xf6+ Sxf6+ 2.Sxf6+ Dbxf6 (394.592) 232.1
>>>  1.26	 0:07 	+0.01++ 	1.Dgxd4+ (1.879.540) 247.3
>>>  1.26	 0:07 	+3.60 	1.Dgxd4+ Dxd4 2.S4xf6+ Sxf6+ 3.Sxf6+ Dbxf6 4.Lxf3+ Sxf3
>>>5.Txd4+ Sbxd4 6.Dexc5+ Ke4 (1.961.678) 245.2
>>>  1.27	 0:07 	+3.61++ 	1.Daxd4+ (1.966.070) 245.7
>>>  1.27	 0:07 	+3.61 	1.Dgxd4+ Dxd4 2.S4xf6+ Sxf6+ 3.Sxf6+ Dbxf6 4.Lxf3+ Sxf3
>>>5.Txd4+ Sbxd4 6.Dexc5+ Ke4 (1.969.856) 246.2
>>>  2.01	 0:08 	+3.60 	1.Dgxd4+ Dxd4 2.S4xf6+ Sxf6+ 3.Sxf6+ Dbxf6 4.Lxf3+ Sxf3
>>>5.Txd4+ Sbxd4 6.Dexc5+ Ke4 (2.003.867) 247.3
>>>  2.03	 0:08 	+3.61++ 	1.S4xf6+ (2.019.851) 246.3
>>>  2.03	 0:08 	+3.61 	1.Dgxd4+ Dxd4 2.S4xf6+ Sxf6+ 3.Sxf6+ Dbxf6 4.Lxf3+ Sxf3
>>>5.Txd4+ Sbxd4 6.Dexc5+ Ke4 (2.033.815) 245.0
>>>  2.04	 0:08 	+3.61++ 	1.S4xb6+ (2.034.800) 245.1
>>>  2.04	 0:08 	+3.61 	1.Dgxd4+ Dxd4 2.S4xf6+ Sxf6+ 3.Sxf6+ Dbxf6 4.Lxf3+ Sxf3
>>>5.Txd4+ Sbxd4 6.Dexc5+ Ke4 (2.044.134) 246.2
>>>  3.01	 0:10 	+4.09++ 	1.Dgxd4+ (2.677.179) 247.8
>>>  3.01	 0:10 	+4.57++ 	1.Dgxd4+ (2.679.106) 248.0
>>>  3.02	 0:14 	+3.13++ 	1.S4xb6+ (3.644.349) 253.0
>>>  3.02	 0:14 	+5.53++ 	1.S4xb6+ (3.649.833) 253.4
>>>  3.01	 0:14 	+5.90 	1.S4xb6+ Sxb6+ 2.Sxb6+ Dfxb6 3.Lxb3+ Sxb3 4.Dxf8 Sxa1
>>>5.Sxb8 Txc7+ 6.Sxc7+ Dxc7+ 7.Lxc7 Lxg1 8.Dxg8+ Se6 (3.759.666) 252.3
>>>  3.03	 0:15 	+5.91++ 	1.S4xf6+ (3.831.823) 252.0
>>>  3.03	 0:15 	+5.91 	1.S4xb6+ Sxb6+ 2.Sxb6+ Dfxb6 3.Lxb3+ Sxb3 4.Dxf8 Sxa1
>>>5.Sxb8 Txc7+ 6.Sxc7+ Dxc7+ 7.Lxc7 Lxg1 8.Dxg8+ Se6 (3.961.528) 252.3
>>>  4.01	 0:43 	+7.66++ 	1.S4xb6+ (11.124.898) 255.7
>>>  4.01	 0:44 	+9.40++ 	1.S4xb6+ (11.472.706) 256.0
>>>  4.01	 0:45 	+12.89++ 	1.S4xb6+ (11.718.901) 256.4
>>>  4.01	 0:47 	+19.86++ 	1.S4xb6+ (12.164.876) 256.6
>>>  4.01	 0:47 	+33.82++ 	1.S4xb6+ (12.303.907) 257.4
>>>  4.01	 0:47 	+61.72++ 	1.S4xb6+ (12.308.895) 256.9
>>>  4.01	 0:58 	  +M8 	1.S4xb6+ Sxb6+ 2.Sxb6+ Dfxb6 3.Dgxd4+ Dxd4 4.Dxd4+ Sbxd4
>>>5.Dexc5+ Dbxc5 6.Dxc5+ Dxc5 7.S8f6+ Sxf6+ 8.Sxf6+ (15.640.705) 266.9
>>>
>>>Quite equal!
>>>
>>>Bye Ingo
>>
>>Thanks! Time is excellent! For this position even 5 minutes will be pretty good.
>>
>>Leonid.
>
>I do not think that 5 minutes is good for this position.
>
>It is not bad for brute force but the position was solved by a playing program
>that use extensions.

I had in mind for sure brute force. Difference in solution of the same heavy
position could go as far as 10 times easely. So if mine took this position in
around 2 minites, 20 minutes must be still regarded as excellent. Even by
selective, heavy position as this, could be solved sometime in one minute.

Leonid.


>Uri



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.