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Simplify away eval in TM

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Passed STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 40160 W: 10523 L: 10309 D: 19328
Ptnml(0-2): 129, 4543, 10524, 4753, 131
https://tests.stockfishchess.org/tests/view/6685ab8b99271ae49479dbe9

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 195672 W: 49681 L: 49639 D: 96352
Ptnml(0-2): 112, 20976, 55597, 21060, 91
https://tests.stockfishchess.org/tests/view/6686f27a7092ade1206f7889

closes https://github.com/official-stockfish/Stockfish/pull/5445

No functional change
This commit is contained in:
FauziAkram 2024-07-06 14:26:31 +03:00 • committed by Joost VandeVondele
parent a45c2bc34a
commit ec8288fe0d
1 changed files with 1 additions and 5 deletions
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6
src/search.cpp
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@ -65,9 +65,6 @@ using namespace Search;
namespace {
static constexpr double EvalLevel[10] = {0.981, 0.956, 0.895, 0.949, 0.913,
0.942, 0.933, 0.890, 0.984, 0.941};
// Futility margin
Value futility_margin(Depth d, bool noTtCutNode, bool improving, bool oppWorsening) {
Value futilityMult = 122 - 37 * noTtCutNode;
@ -463,11 +460,10 @@ void Search::Worker::iterative_deepening() {
timeReduction = lastBestMoveDepth + 8 < completedDepth ? 1.495 : 0.687;
double reduction = (1.48 + mainThread->previousTimeReduction) / (2.17 * timeReduction);
double bestMoveInstability = 1 + 1.88 * totBestMoveChanges / threads.size();
int el = std::clamp((bestValue + 750) / 150, 0, 9);
double recapture = limits.capSq == rootMoves[0].pv[0].to_sq() ? 0.955 : 1.005;
double totalTime = mainThread->tm.optimum() * fallingEval * reduction
* bestMoveInstability * EvalLevel[el] * recapture;
* bestMoveInstability * recapture;
// Cap used time in case of a single legal move for a better viewer experience
if (rootMoves.size() == 1)