Author: Daniel Shawul
Date: 01:56:30 04/29/04
Hello
My question is about normal futility at depth==1 and lazy evaluation.
What i do is as follows
search()
{
for each move {
MAKEMOVE()
if( depth == 1 &&
move is not checking &&
score + 300 < alpha
prune;
..
recurse to next ply
}
}
quiescent()
{
if(lazy score + margin < alpha ||
lazy score - margin > beta)
score = lazy score modified by margin
else
score = eval()
if(score > beta)
return beta;
}
i am thinking the futility is redundant if the second case for lazy
eval is present [lazy score - margin > beta]. What does the futility save me?
i already made the move so only a call to quiescent is left which will
immediately return??
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