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Retire mateKiller

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Practically useless:
After 6456 games 1281 - 1293 - 3882 ELO +0 (+- 5.5)

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2011-05-25 21:36:16 +01:00
parent 8f51f09de7
commit cff8877a1a
4 changed files with 17 additions and 31 deletions
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5
src/search.cpp
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@@ -710,7 +710,7 @@ namespace {
// Step 1. Initialize node and poll. Polling can abort search
ss->currentMove = ss->bestMove = threatMove = (ss+1)->excludedMove = MOVE_NONE;
(ss+1)->skipNullMove = false; (ss+1)->reduction = DEPTH_ZERO;
(ss+2)->killers[0] = (ss+2)->killers[1] = (ss+2)->mateKiller = MOVE_NONE;
(ss+2)->killers[0] = (ss+2)->killers[1] = MOVE_NONE;
if (threadID == 0 && ++NodesSincePoll > NodesBetweenPolls)
{
@@ -1149,9 +1149,6 @@ split_point_start: // At split points actual search starts from here
else if (SpNode)
sp->is_betaCutoff = true;
if (value == value_mate_in(ss->ply + 1))
ss->mateKiller = move;
ss->bestMove = move;
if (SpNode)