Author: Jeremiah Penery
Date: 14:27:05 10/04/02
Go up one level in this thread
On October 04, 2002 at 16:51:38, Roy Eassa wrote:
>On October 03, 2002 at 19:18:16, Jeremiah Penery wrote:
>
>>[D]8/7p/6pP/k4pP1/b1p1pP2/KpPpP3/1P1P4/7Q w - - 0 1
>>
>>Static evaluation is now 0 here. The solution is supposed to be Qd1 <bishop
>>move> {Kb5 Qh5!} Qxb3. The problem in solving this is that the evaluation after
>>the given line is negative for white, so it doesn't want to play the
>>'sacrifice'. But I consider it a good result that it knows this is a draw since
>>it can't make progress.
>>Normal Crafty 18.15 says near +5, while making the wrong move.
>>
>
>
>A question about the above: what do you mean "the solution is supposed to
>be..."? What solution? White cannot win with that line, right? But White can
>draw a million different ways, right?
>
>I agree that there if Black blunders with 1.Qd1 Kb5?? then White indeed wins
>with 2.Qh5! But barring blunders, what's better about Qd1 as opposed to any
>other waiting move? The sacrifice for 2 pawns does not win AFAIK.
The stuff I read about it said that Qd1 <bishop move> Qxb3 was supposed to win
for white. But that may be wrong - it's very deep, and I haven't carefully
analyzed. Still, most programs will evaluate this like +6 or more, even though
it should be a draw.
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