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Subject: Re: New Endgame Test Suite

Author: Peter Kappler

Date: 18:37:13 12/03/01

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On December 03, 2001 at 17:40:08, Miguel A. Ballicora wrote:

>On December 03, 2001 at 16:54:01, Peter McKenzie wrote:
>
>>On December 03, 2001 at 16:20:44, Steffen Jakob wrote:
>>
>>>On December 03, 2001 at 12:38:34, Peter McKenzie wrote:
>>>
>>>>On December 03, 2001 at 06:35:30, Steffen Jakob wrote:
>>>>
>>>>>On December 03, 2001 at 06:32:12, Jouni Uski wrote:
>>>>>
>>>>>>On December 03, 2001 at 06:28:23, Steffen Jakob wrote:
>>>>>>
>>>>>>>On December 03, 2001 at 03:49:49, Peter McKenzie wrote:
>>>>>>>
>>>>>>>>Version one of my endgame test suite (50 positions) is finally ready for public
>>>>>>>>consumption.  It can found at:
>>>>>>>>
>>>>>>>>http://homepages.caverock.net.nz/~peter/eg_test/eg_test.htm
>>>>>>>>
>>>>>>>>The web pages need a bit of work, but hopefully they will do for now.
>>>>>>>>
>>>>>>>>Thanks to everyone who contributed positions, analysis, ideas etc.
>>>>>>>>
>>>>>>>PET005 and PET006 seem to be the same position.
>>>>>>>
>>>>>>>Greetings,
>>>>>>>Steffen.
>>>>>>
>>>>>>Yes, but different color to move!
>>>>>>
>>>>>>Jouni
>>>>>
>>>>>Oh, sorry! I didnt look at the color because I saw that in both positions b3 was
>>>>>the best move :-)
>>>>
>>>>Ah yes, I thought that was kind of amusing.
>>>>
>>>>How does Hossa do on the test?
>>>>
>>>>At 60sec/position my program gets 23/50, for 190 points out of a possible 500.
>>>>So not a greatly impressive result, although I have no idea how other programs
>>>>do.
>>>
>>>I get 15/50 :-(
>>>
>>>I like this test suite a lot... a lot of work to be done.
>>
>>Glad you like it Steffen, I put a lot of effort into creating it!
>>I had to stop myself from modifying LambChop to try to solve each new position I
>>found, otherwise I would never have finished creating the test suite :-)
>
>Thanks Peter for collecting these positions.
>I do not know whether the test will reflect strength of a program in real
>endgames (time will tell), but I am sure that the positions are wonderful to
>work with. There are many themes that are very important.
>As steffen said, lot of work to be done.
>
>Endgame is something I barely touched in my program and will use your positions
>eventually. The interesting thing is that there several that I consider myself
>to use them! For instance Karpov Ng2 is a position that made a strong impression
>on me for a long time. Shirov's Bxh3 and the couple that you have from
>Rubinstein (a true giant on the endgame) are really good.
>
>Regards,
>Miguel
>PS: I like the one that you create that starts with Bh3! (to triple the pawns on
>the h file and draw)
>

Believe it or not, Bh3!! actually wins in that position.  One of my all-time
favorite moves.  :)

-Peter



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