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Revert "Do IID also when we already have a ttMove"

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Joona's testing reports very bad results at 5s, 30s and
even 1 minute TC, so revert.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2010-06-24 18:00:03 +01:00
parent 6776f76d20
commit d9a8dd0f7a
1 changed files with 1 additions and 1 deletions
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src/search.cpp
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@ -1237,7 +1237,7 @@ namespace {
// Step 9. Internal iterative deepening // Step 9. Internal iterative deepening
if ( depth >= IIDDepth[PvNode] if ( depth >= IIDDepth[PvNode]
&& (ttMove == MOVE_NONE || (PvNode && tte->depth() <= depth - 4 * OnePly)) && ttMove == MOVE_NONE
&& (PvNode || (!isCheck && ss->eval >= beta - IIDMargin))) && (PvNode || (!isCheck && ss->eval >= beta - IIDMargin)))
{ {
Depth d = (PvNode ? depth - 2 * OnePly : depth / 2); Depth d = (PvNode ? depth - 2 * OnePly : depth / 2);