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RookOnQueenFile Removal

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Removing Rook On Queen File looks beneficial, and it might even bring some ELO.
I will try to reintroduce it with a different method later on.

Passed STC:
https://tests.stockfishchess.org/tests/view/5f7cea204389873867eb10cb
LLR: 2.94 (-2.94,2.94) {-1.25,0.25}
Total: 18624 W: 3800 L: 3568 D: 11256
Ptnml(0-2): 308, 2131, 4257, 2253, 363

Passed LTC:
https://tests.stockfishchess.org/tests/view/5f7d76a4e936c6892bf50598
LLR: 2.95 (-2.94,2.94) {-0.75,0.25}
Total: 117864 W: 15515 L: 15340 D: 87009
Ptnml(0-2): 926, 11127, 34671, 11262, 946

closes https://github.com/official-stockfish/Stockfish/pull/3176

Bench: 3756191
This commit is contained in:
FauziAkram 2020-10-06 22:43:48 +03:00 • committed by Joost VandeVondele
parent ba73f8ce0d
commit 4a5cc1365f
1 changed files with 0 additions and 5 deletions
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5
src/evaluate.cpp
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@ -265,7 +265,6 @@ namespace {
constexpr Score ReachableOutpost = S( 31, 22);
constexpr Score RestrictedPiece = S( 7, 7);
constexpr Score RookOnKingRing = S( 16, 0);
constexpr Score RookOnQueenFile = S( 6, 11);
constexpr Score SliderOnQueen = S( 60, 18);
constexpr Score ThreatByKing = S( 24, 89);
constexpr Score ThreatByPawnPush = S( 48, 39);
@ -481,10 +480,6 @@ namespace {
if (Pt == ROOK)
{
// Bonus for rook on the same file as a queen
if (file_bb(s) & pos.pieces(QUEEN))
score += RookOnQueenFile;
// Bonus for rook on an open or semi-open file
if (pos.is_on_semiopen_file(Us, s))
score += RookOnFile[pos.is_on_semiopen_file(Them, s)];