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Small trivial clean-ups, February 2021

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Closes https://github.com/official-stockfish/Stockfish/pull/3329

No functional change
This commit is contained in:
Lolligerhans
2021-01-31 13:46:05 +01:00
committed by Stéphane Nicolet
parent b46813f9b7
commit 40cb0f076a
5 changed files with 19 additions and 21 deletions
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src/search.cpp
+7 -7
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@@ -1025,12 +1025,12 @@ moves_loop: // When in check, search starts from here
movedPiece = pos.moved_piece(move);
givesCheck = pos.gives_check(move);
// Indicate PvNodes that will probably fail low if node was searched with non-PV search
// Indicate PvNodes that will probably fail low if node was searched with non-PV search
// at depth equal or greater to current depth and result of this search was far below alpha
bool likelyFailLow = PvNode
&& ttMove
&& (tte->bound() & BOUND_UPPER)
&& ttValue < alpha + 200 + 100 * depth
bool likelyFailLow = PvNode
&& ttMove
&& (tte->bound() & BOUND_UPPER)
&& ttValue < alpha + 200 + 100 * depth
&& tte->depth() >= depth;
// Calculate new depth for this move
@@ -1180,8 +1180,8 @@ moves_loop: // When in check, search starts from here
if (th.marked())
r++;
// Decrease reduction if position is or has been on the PV
// and node is not likely to fail low (~10 Elo)
// Decrease reduction if position is or has been on the PV
// and node is not likely to fail low. (~10 Elo)
if (ss->ttPv && !likelyFailLow)
r -= 2;