Author: Robert Hyatt
Date: 07:35:08 09/20/04
Go up one level in this thread
On September 20, 2004 at 05:28:54, Renze Steenhuisen wrote:
>Hi all,
>
>I have to confess that this is a very said thing, but I have to ask...
>
>My moveGen() generates pseudo-legal moves, in a similar way as is done in
>Crafty. I want to add the single-reply extension (of course), but I find it hard
>to grasp how to do this efficiently (because I might need to generate more moves
>than needed, right?)
>
>Or someone could please explain in words what is done in Crafty:
>
> if (tree->in_check[ply] && tree->last[ply]-tree->last[ply-1] == 1) {
> tree->one_reply_extensions_done++;
> extended+=onerep_depth;
> }
>
>What is this "tree->last[]" thing doing exactly?
>
>Thanks!
>
> Renze
When in check, crafty has a legal-move generator. if last [ply]-last[ply-1] is
exactly 1, then then legal move generator generated exactly 1 move.
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