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Subject: Re: what is the longest game of chess between programs?

Author: Robert Hyatt

Date: 18:57:50 10/14/98

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On October 14, 1998 at 18:42:38, blass uri wrote:

>
>On October 14, 1998 at 18:25:20, Robert Hyatt wrote:
>
>>On October 14, 1998 at 12:51:09, José de Jesús García Ruvalcaba wrote:
>>
>>>On October 14, 1998 at 09:04:49, Robert Hyatt wrote:
>>>
>>>>On October 14, 1998 at 03:15:10, blass uri wrote:
>>>>
>>>>>I can imagine a practical game with more than 600 moves when the side with
>>>>>KBPPvK (wrong bishop) is playing 49 quiet moves and pushes a pawn forward.
>>>>>h2-h3 h3-h4 h4-h5 h5-h6 h6-h7 h7-h8 are 6 pawn moves of h2 and there are 5 pawn
>>>>>moves of the pawn h3 and if we count the beginning of the game than it is more
>>>>>than 1200 plies.
>>>>>
>>>>>I suspect that many program will go to an infinite loop before the end of the
>>>>>game and will lose on time.
>>>>>
>>>>>Uri
>>>>
>>>>I don't know why they would, because the game is still constrained by
>>>>things like the 50-move rule.  However, Crafty has played at least two
>>>>games that went over 500 moves.  Early on, winboard/xboard had a 256 entry
>>>>list for black and white moves, which meant when the game passed move 256
>>>>it would hang because winboard/xboard would crash.  Tim fixed this when I
>>>>told him about this, bumping it to 1024.  I have since played one game
>>>>vs a human over 500 moves that I remember, and at *least* one against a
>>>>computer...
>>>>
>>>>I could play a game 5000 moves long with no difficulty at all...  At 40/2
>>>>at ACM events I have played two games over 12 hours long as well...
>>>
>>>Who was that human? (if it is posible to know)
>>>That is some endurance! Even at a fast time control, I would be exhausted after
>>>a 500 moves game!
>>
>>
>>The most famous game on ICC I remember was between Crafty and Skipper...  a 3 0
>>game that went for 350 moves before a draw.  that is 3 minutes on each clock,
>>skipper was manually moving pieces and was a human player in Hawaii.  In fact,
>>he is the one that found the 256 move limit in xboard and flagged crafty a
>>few games in 2 0 bullet... reaching 256 moves quite easily without running out
>>of time...
>
>Amazing!
>I tried to play some games in ICC as a guest and found that it is impossible for
>me to play 0 1 bullet without running out of time(0 2 is the best I can and I
>tried to do the fastest move I prefered short moves like Rh1g1) and this guy
>played 256 moves in less than 120 seconds.
>
>Uri


Yes.. and roman is just as fast when he wants to be...  he has played crafty
literally thousands of 2 0 and 2 1 bullet games, and 100 moves is nothing for
him...



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