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Remove RookOn7th and merge values into psqt

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Tested in no-regression mode:

STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 55678 W: 9954 L: 9892 D: 35832

LTC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 9238 W: 1448 L: 1311 D: 6479

bench: 7905850
This commit is contained in:
Arjun Temurnikar 2014-04-20 03:50:03 -07:00 • committed by Marco Costalba
parent 6579a65bbb
commit 3705559fdb
2 changed files with 1 additions and 7 deletions
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6
src/evaluate.cpp
View file

@ -161,7 +161,6 @@ namespace {
#undef S
const Score Tempo = make_score(24, 11);
const Score RookOn7th = make_score(11, 20);
const Score RookOnPawn = make_score(10, 28);
const Score RookOpenFile = make_score(43, 21);
const Score RookSemiopenFile = make_score(19, 10);
@ -360,11 +359,6 @@ namespace {
if (Pt == ROOK)
{
// Rook on 7th rank and enemy king trapped on 8th
if ( relative_rank(Us, s) == RANK_7
&& relative_rank(Us, pos.king_square(Them)) == RANK_8)
score += RookOn7th;
// Rook piece attacking enemy pawns on the same rank/file
if (relative_rank(Us, s) >= RANK_5)
{

2
src/psqtab.h
View file

@ -68,7 +68,7 @@ static const Score PSQT[][SQUARE_NB] = {
S(-22, 3), S( -7, 3), S( -2, 3), S( 2, 3), S( 2, 3), S( -2, 3), S( -7, 3), S(-22, 3),
S(-22, 3), S( -7, 3), S( -2, 3), S( 2, 3), S( 2, 3), S( -2, 3), S( -7, 3), S(-22, 3),
S(-22, 3), S( -7, 3), S( -2, 3), S( 2, 3), S( 2, 3), S( -2, 3), S( -7, 3), S(-22, 3),
S(-22, 3), S( -7, 3), S( -2, 3), S( 2, 3), S( 2, 3), S( -2, 3), S( -7, 3), S(-22, 3),
S(-11, 3), S( 4, 3), S( 9, 3), S(13, 3), S(13, 3), S( 9, 3), S( 4, 3), S(-11, 3),
S(-22, 3), S(-17, 3), S(-12, 3), S(-8, 3), S(-8, 3), S(-12, 3), S(-17, 3), S(-22, 3)
},
{ // Queen