kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-05-02 09:39:36 +00:00
Code Issues Releases Wiki Activity

Zero redundant material imbalance terms

Browse source 
First coefficient in the SameColor array does an
equivalent job when folded into the LinearCoefficients
array.

All of the diagonal terms in the OppositeColor array
are redundant due to cancellation.

No functional change.
This commit is contained in:
Chris Caino 2013-11-04 12:44:42 +00:00 • committed by Marco Costalba
parent d34bb889b1
commit 1064288b38
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
src/material.cpp
View file

@ -39,11 +39,11 @@ namespace {
const Value RedundantRook = Value(554); const Value RedundantRook = Value(554);
// pair pawn knight bishop rook queen // pair pawn knight bishop rook queen
const int LinearCoefficients[6] = { 1817, -162, -1122, -190, 105, 26 }; const int LinearCoefficients[6] = { 1824, -162, -1122, -190, 105, 26 };
const int QuadraticCoefficientsSameColor[][PIECE_TYPE_NB] = { const int QuadraticCoefficientsSameColor[][PIECE_TYPE_NB] = {
// pair pawn knight bishop rook queen // pair pawn knight bishop rook queen
{ 7 }, // Bishop pair { 0 }, // Bishop pair
{ 39, 2 }, // Pawn { 39, 2 }, // Pawn
{ 35, 271, -4 }, // Knight { 35, 271, -4 }, // Knight
{ 7, 105, 4, 7 }, // Bishop { 7, 105, 4, 7 }, // Bishop
@ -54,12 +54,12 @@ namespace {
const int QuadraticCoefficientsOppositeColor[][PIECE_TYPE_NB] = { const int QuadraticCoefficientsOppositeColor[][PIECE_TYPE_NB] = {
// THEIR PIECES // THEIR PIECES
// pair pawn knight bishop rook queen // pair pawn knight bishop rook queen
{ 41 }, // Bishop pair { 0 }, // Bishop pair
{ 37, 41 }, // Pawn { 37, 0 }, // Pawn
{ 10, 62, 41 }, // Knight OUR PIECES { 10, 62, 0 }, // Knight OUR PIECES
{ 57, 64, 39, 41 }, // Bishop { 57, 64, 39, 0 }, // Bishop
{ 50, 40, 23, -22, 41 }, // Rook { 50, 40, 23, -22, 0 }, // Rook
{ 106, 101, 3, 151, 171, 41 } // Queen { 106, 101, 3, 151, 171, 0 } // Queen
}; };
// Endgame evaluation and scaling functions accessed direcly and not through // Endgame evaluation and scaling functions accessed direcly and not through