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Add a comment and a FIXME

Browse source 
And fix indentation too.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2010-05-08 13:30:34 +01:00
parent 276513c19f
commit 35e39a196d
1 changed files with 31 additions and 28 deletions
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9
src/search.cpp
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@ -1247,9 +1247,10 @@ namespace {
if (abs(ttValue) < VALUE_KNOWN_WIN)
{
Value excValue = search<NonPV>(pos, ss, ttValue - SingularExtensionMargin - 1, ttValue - SingularExtensionMargin, depth / 2, ply, false, threadID, move);
Value b = ttValue - SingularExtensionMargin;
Value v = search<NonPV>(pos, ss, b - 1, b, depth / 2, ply, false, threadID, move);
if (excValue < ttValue - SingularExtensionMargin)
if (v < ttValue - SingularExtensionMargin)
ext = OnePly;
}
}
@ -1274,7 +1275,7 @@ namespace {
continue;
// Value based pruning
Depth predictedDepth = newDepth - reduction<NonPV>(depth, moveCount); // We illogically ignore reduction condition depth >= 3*OnePly
Depth predictedDepth = newDepth - reduction<NonPV>(depth, moveCount); // FIXME We illogically ignore reduction condition depth >= 3*OnePly
futilityValueScaled = ss[ply].eval + futility_margin(predictedDepth, moveCount)
+ H.gain(pos.piece_on(move_from(move)), move_to(move));
@ -1320,6 +1321,8 @@ namespace {
value = -search<NonPV>(pos, ss, -(alpha+1), -alpha, newDepth, ply+1, true, threadID);
// Step extra. pv search (only in PV nodes)
// Search only for possible new PV nodes, if instead value >= beta then
// parent node fails low with value <= alpha and tries another move.
if (PvNode && value > alpha && value < beta)
value = -search<PV>(pos, ss, -beta, -alpha, newDepth, ply+1, false, threadID);
}