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Combo 

Combo of two parameter tweaks and tuned values for Queen and ThreatByKing.

STC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 20180 W: 4439 L: 4198 D: 11543
http://tests.stockfishchess.org/tests/view/5bd7b8250ebc595e0ae22e97

LTC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 86312 W: 14106 L: 13685 D: 58521
http://tests.stockfishchess.org/tests/view/5bd803560ebc595e0ae23213

This combo consists of the following:

Queen Value (tuned values)
Iter: 72056, A: 5000, alpha 0.602000, gamma 0.101000, clipping old, rounding deterministic
param: QueenValueMg, best: 2528.91, start: 2528.00
param: QueenValueEg, best: 2687.12, start: 2698.00

ThreatByKing (tuned values)
Green STC (50.8k games)
http://tests.stockfishchess.org/tests/view/5bd1d5a00ebc595e0ae1cbec
LTC (I stopped this test at 71.2k games. It's likely yellow.)
http://tests.stockfishchess.org/tests/view/5bd263e70ebc595e0ae1d77e

WeakUnopposedPawn (tweak) by xoto (https://github.com/xoto10)
Green STC (102.8k games)
http://tests.stockfishchess.org/tests/view/5bd306bb0ebc595e0ae1e146
Yellow LTC (90.8k games)
http://tests.stockfishchess.org/tests/view/5bd3ea660ebc595e0ae1f16b

aspiTune1 (tweak) by vondele (https://github.com/vondele)
Green STC (125.9k games)
http://tests.stockfishchess.org/tests/view/5bd2ae100ebc595e0ae1dab0
Yellow LTC (107.9k games)
http://tests.stockfishchess.org/tests/view/5bd3eb700ebc595e0ae1f16f

Thank you @31m059 (Mark Tenzer) for helping me! Also, thank you very much
for recognizing my efforts. I genuinely appreciate it.

Bench: 3556672
pull/1796/head
SFisGOD 2018-11-01 00:48:16 +08:00 committed by Stéphane Nicolet
parent 7a61368971
commit 4a0db9ea3c
3 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/evaluate.cpp
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@ -167,13 +167,13 @@ namespace {
constexpr Score PawnlessFlank = S( 19, 84);
constexpr Score RookOnPawn = S( 10, 30);
constexpr Score SliderOnQueen = S( 42, 21);
constexpr Score ThreatByKing = S( 23, 76);
constexpr Score ThreatByKing = S( 22, 78);
constexpr Score ThreatByPawnPush = S( 45, 40);
constexpr Score ThreatByRank = S( 16, 3);
constexpr Score ThreatBySafePawn = S(173,102);
constexpr Score TrappedRook = S( 92, 0);
constexpr Score WeakQueen = S( 50, 10);
constexpr Score WeakUnopposedPawn = S( 5, 29);
constexpr Score WeakUnopposedPawn = S( 15, 19);
#undef S

2
src/search.cpp
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@ -388,7 +388,7 @@ void Thread::search() {
if (rootDepth >= 5 * ONE_PLY)
{
Value previousScore = rootMoves[pvIdx].previousScore;
delta = Value(18);
delta = Value(20);
alpha = std::max(previousScore - delta,-VALUE_INFINITE);
beta = std::min(previousScore + delta, VALUE_INFINITE);

2
src/types.h
View File

@ -180,7 +180,7 @@ enum Value : int {
KnightValueMg = 784, KnightValueEg = 868,
BishopValueMg = 828, BishopValueEg = 916,
RookValueMg = 1286, RookValueEg = 1378,
QueenValueMg = 2528, QueenValueEg = 2698,
QueenValueMg = 2529, QueenValueEg = 2687,
MidgameLimit = 15258, EndgameLimit = 3915
};