Author: Sune Larsson
Date: 02:06:11 01/01/06
Go up one level in this thread
On January 01, 2006 at 04:37:31, Vasik Rajlich wrote:
>On January 01, 2006 at 02:53:42, Sune Larsson wrote:
>
>>On December 31, 2005 at 21:17:47, Joseph Ciarrochi wrote:
>>
>>>One possibility is that rybka does not have specific endgame knowledge, but its
>>>general chess knowledge is quite applicable to the endgame?
>>>
>>>It seems like rybka is one version away from being the best at analyzing
>>>endgames? or am i too optimistic?
>>
>>
>> Exciting future to come...Rybka is the crowned bullet master from rumours
>> I've heard....so relatively better in endings at short time control....
>> relatively - compared to other engines.
>>
>> But I close my eyes for games in blitz tempo. Two games from the pos 1
>> in the suite - 40 moves in 5 minutes - were enough. Rook ending and the
>> level of play was...huh... not good...
>>
>> With some more 40-games matches, using the endgame suite, we can study more
>> details - which engine seems to handle the rook ending best? How about
>> the theme "good knight vs bad bishop"? etc. Interesting.
>>
>>
>> To keep in mind - or on paper - the following positions are documented and
>> verfied *won* for white/black - and highly unbalanced - even if some engines
>> don't recognize it...
>>
>>
>> Won positions: N:o 10, 11, 12, 13, 14, 15, 17, 19
>>
>> Draw position: N:o 16 (black draws with activity only - 1.- Rd2!)
>>
>> Slightly better for black: N:o 20 (the double rook ending by Andersson)
>>
>> Unclear position: N:o 18 (the bishop pair vs pair of knights + an extra pawn)
>>
>>
>> 1-9 are the NunnE positions.
>>
>>
>> /S
>>
>
>Sune / Joe,
>
>thanks for making this testsuite, it's a great idea.
>
>I started looking at some games between Fruit 2.2 and Rybka from these
>positions, and had to stop - it was just too ridiculous. It is not only Rybka
>which was being ridiculous.
>
>I will add the knowledge to Rybka piece-by-piece, maybe we can use this
>testsuite to measure the progress.
>
>Vas
Looking forward....Much to be done.
/S
>
>>
>>
>>
>>
>>
>>>
>>>
>>>
>>>On December 31, 2005 at 17:02:13, Jouni Uski wrote:
>>>
>>>>I played 60/5 level match from Sune's positions:
>>>>
>>>>1 Rybka 1.0 Beta 32-bit 0½½0½½½11½½½01100110½0½010½½½½1½½½111½½0 20.5/40
>>>>2 Fritz 9 1½½1½½½00½½½10011001½1½101½½½½0½½½000½½1 19.5/40
>>>>
>>>>Hmm?!?!? "No endgame knowledge". Quite modest!
>>>>
>>>>Jouni
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