Author: Koundinya Veluri
Date: 04:16:52 09/02/01
Go up one level in this thread
On September 01, 2001 at 17:23:02, Antonio Dieguez wrote:
>On September 01, 2001 at 17:19:44, Antonio Dieguez wrote:
>
>>
>>>int ev=evaluate(...)
>>>
>>>if (ev>=beta+window)
>>>{ return beta; }
>>>
>>>then see captures with this window: (alpha-window,beta)
>>>
>>>if that alpha-window was not improved then return alpha.
>>>
>>>(less nodes, and now exactly the same, if I am not mistaken...)
>>
>>it is not the same! but perhaps you like it better anyway.
>>
>>It is not the same because in your original code, when your quiesce return a
>>value *by evaluation*, inside the window, that pos. is not pruned then but now
>>it can... well, I give up! :)
>
>This way:
>
>int ev=evaluate(...)
>
>if (ev>=beta+window)
>{ return beta; }
>
>then see captures with this window: (alpha-window,beta)
>
>if that alpha-window was not improved AND ev<=alpha-window then return alpha.
>
>------------
>
>IT'S THE SAME. I sure! :) :)
I understand it now, just needed some sleep...
This should give exactly the same pruning.
Koundinya
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