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Subject: Re: You'll never know... F6, J6, S5, GT2 results

Author: Miguel A. Ballicora

Date: 09:47:32 05/14/01

Go up one level in this thread


On May 14, 2001 at 11:24:33, Gordon Rattray wrote:

>On May 14, 2001 at 09:54:06, Gian-Carlo Pascutto wrote:
>
>>On May 13, 2001 at 12:31:19, Gordon Rattray wrote:
>>
>>>I've tested this position with Fritz 6, Junior 6, Shredder 5 and GambitTiger 2
>>>and they all avoid a6 within 30 seconds.  I didn't leave the analysis running
>>>to see if they would switch back.  I'm using an Athlon 1.1 Ghz.
>>
>>Avoiding a6 is not hard, even my program will do it in a few seconds
>>(there was very few time left in the actual game).
>>
>>The trick is to understand it is a draw after a6.
>>
>>--
>>GCP
>
>OK, in which case you need to word your question correctly.  You wrote:
>
>>Most other programs don't seem to have a clue about
>>this position either, though :)
>
>after posting the position *before* a6 was played.  Hence I read your "this
>position" to be before a6.  If a6 is easy and not the point, maybe you should
>have posted the position after a6 was played.
>
>Gordon

Besides the wording, Giancarlo's point was clear. Do the programs "understand"
what's going on? Sometimes you avoid a6 because there so many good choices
that a program took a anyone. Still does not prove that that the program
understand the position. This is an attempt to make it harder for the programs

[D]2k2r2/2P3R1/pP6/1P6/8/8/1K6/8 w - - 0 56

White should avoid bxa6. With enough time (and maybe table bases) programs
will avoid it because they will see a promotion in other line (Kb3 or Kc3) but I
guess that it will take many plies to find that, unless the program "understand"
the risk of playing bxa6.

Miguel




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