Author: Robert Hyatt
Date: 20:05:23 08/27/99
Go up one level in this thread
On August 27, 1999 at 19:38:47, Phil Dixon wrote:
>On August 26, 1999 at 20:18:00, Robert Hyatt wrote:
>
>>On August 26, 1999 at 18:02:16, Phil Dixon wrote:
>>
>>>On August 26, 1999 at 12:03:21, Robert Hyatt wrote:
>>>
>>>>On August 26, 1999 at 05:24:00, Jouni Uski wrote:
>>>>
>>>>>FEN 7r/3K1k1P/4p3/4p3/4P3/8/8/5R2 b - - 0 0
>>>>>
>>>>>Isn't Kg7 easily losing but Kg6 drawing? What does Your program with
>>>>>tablebases think? Most programs would never make this stupid mistake...
>>>>>
>>>>>Jouni
>>>>
>>>>
>>>>His losing move was the last Rh8. Crafty was analyzing on ICC and prior to
>>>>this move was suggesting either Kf7 or Kf6 as drawing (ending up in a deep
>>>>tablebase hit). When he played Rh8 Crafty's score went to +3.5 and never went
>>>>back down...
>>>>
>>>>Bob
>>>>
>>>>I think it was move 71 for black. Crafty was searching 18-19 plies deep here
>>>>and found what looked like a direct drawing line.
>>>
>>>Is it possible to get the analysis logs, Bob? I'd very much like to see it.
>>>BTW, wherever I go, I take Crafty with me on a floppy disc. It's really great
>>>to get such a product onto a floppy. Thanks for the fine job and being so
>>>generous to give it away and answere questions the way you do. :-)
>>>
>>>Regards,
>>>Phil
>>
>>
>>The log file is very messy and not worth posting, because Crafty was watching
>>that game, plus two other USCF-rated games and giving analysis on all three at
>>the same time. As a result, the log file is mangled beyond understanding
>>pretty much. :)
>>
>>But if you can tell me exactly what you would like to see, I can probably cut
>>it out and post it here...
>
>I would like to see Crafty analysis for 71...Rh8? How hard were the TBs being
>hit? If it's not too much trouble, I would appreciate. If it is too difficult,
>I will understand. Thank you very much.
>
>Phil
Here is part of the analysis... it was interrupted by a switch to another
game....
(2) 16-> 1:07 -0.00 71. ... Kf6 72. Rf2+ Kg7 73. Kb7 Rh8
74. Kc7 Rxh7 75. Kd6 Rh4 76. Kxe5 Rg4
77. Rf3 Rg5+ 78. Kd6 Rg4 79. Ke5 <HT>
During this part of the game, the eval jumped closer to zero each iteration,
until here. The disk was buzzing with probes...
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