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Revert odd depths razoring

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I have just made a new rule that no modification
that increases pruning is allowed if after 1000 games
ELO is not increased by at least 10 point (was +5 in this case)

Yes, I like this kind of nosense rules :-)
This commit is contained in:
Marco Costalba
2009-03-23 12:02:15 +01:00
parent 4d70e3aeac
commit a9e55d4326
1 changed files with 2 additions and 2 deletions
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4
src/search.cpp
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@@ -1245,8 +1245,8 @@ namespace {
{
Value v = qsearch(pos, ss, beta-1, beta, Depth(0), ply, threadID);
if ( (v < beta - RazorMargin - RazorMargin / 4)
|| (depth < 3*OnePly && v < beta - RazorMargin)
|| (depth < 2*OnePly && v < beta - RazorMargin / 2))
|| (depth <= 2*OnePly && v < beta - RazorMargin)
|| (depth <= OnePly && v < beta - RazorMargin / 2))
return v;
}