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Remove QueenMinorsImbalance array #1340

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Remove QMI array and adjust bishop, knight and queen coefficients
in QuadraticOurs and QuadraticTheirs arrays in compensation of
this removal.

STC : http://tests.stockfishchess.org/tests/view/5a21d8350ebc590ccbb8b5fe
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 49659 W: 9029 L: 8957 D: 31673

LTC : http://tests.stockfishchess.org/tests/view/5a33c0dd0ebc590ccbb8bd7e
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 45905 W: 5834 L: 5745 D: 34326

Bench: 5176807
This commit is contained in:
Gontran Lemaire 2017-12-01 22:02:45 +00:00 • committed by Marco Costalba
parent f6981b1321
commit 83e829c9dc
1 changed files with 2 additions and 12 deletions
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14
src/material.cpp
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@ -39,7 +39,7 @@ namespace {
{ 32, 255, -3 }, // Knight OUR PIECES { 32, 255, -3 }, // Knight OUR PIECES
{ 0, 104, 4, 0 }, // Bishop { 0, 104, 4, 0 }, // Bishop
{ -26, -2, 47, 105, -149 }, // Rook { -26, -2, 47, 105, -149 }, // Rook
{-185, 24, 122, 137, -134, 0 } // Queen {-189, 24, 117, 133, -134, -10 } // Queen
}; };
const int QuadraticTheirs[][PIECE_TYPE_NB] = { const int QuadraticTheirs[][PIECE_TYPE_NB] = {
@ -50,13 +50,7 @@ namespace {
{ 9, 63, 0 }, // Knight OUR PIECES { 9, 63, 0 }, // Knight OUR PIECES
{ 59, 65, 42, 0 }, // Bishop { 59, 65, 42, 0 }, // Bishop
{ 46, 39, 24, -24, 0 }, // Rook { 46, 39, 24, -24, 0 }, // Rook
{ 101, 100, -37, 141, 268, 0 } // Queen { 97, 100, -42, 137, 268, 0 } // Queen
};
// QueenMinorsImbalance[opp_minor_count] is applied when only one side has a queen.
// It contains a bonus/malus for the side with the queen.
const int QueenMinorsImbalance[13] = {
31, -8, -15, -25, -5
}; };
// Endgame evaluation and scaling functions are accessed directly and not through // Endgame evaluation and scaling functions are accessed directly and not through
@ -112,10 +106,6 @@ namespace {
bonus += pieceCount[Us][pt1] * v; bonus += pieceCount[Us][pt1] * v;
} }
// Special handling of Queen vs. Minors
if (pieceCount[Us][QUEEN] == 1 && pieceCount[Them][QUEEN] == 0)
bonus += QueenMinorsImbalance[pieceCount[Them][KNIGHT] + pieceCount[Them][BISHOP]];
return bonus; return bonus;
} }