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Simplify away the PawnSet[] imbalance array (#1308)

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Simplify away the PawnSet[] imbalance array

STC:
LLR: 2.94 (-2.94,2.94) [-3.00,1.00]
Total: 52977 W: 9550 L: 9484 D: 33943
http://tests.stockfishchess.org/tests/view/5a06b4780ebc590ccbb8a833

LTC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 83717 W: 10599 L: 10559 D: 62559
http://tests.stockfishchess.org/tests/view/5a0aa36a0ebc590ccbb8aa99

Bench: 5340212
This commit is contained in:
Stéphane Nicolet 2017-11-18 11:24:23 +01:00 • committed by Marco Costalba
parent 53239d7d3d
commit 03a9b3bd8d
1 changed files with 2 additions and 7 deletions
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9
src/material.cpp
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@ -53,11 +53,6 @@ namespace {
{ 101, 100, -37, 141, 268, 0 } // Queen
};
// PawnSet[pawn count] contains a bonus/malus indexed by number of pawns
const int PawnSet[] = {
24, -32, 107, -51, 117, -9, -126, -21, 31
};
// 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] = {
@ -100,9 +95,9 @@ namespace {
const Color Them = (Us == WHITE ? BLACK : WHITE);
int bonus = PawnSet[pieceCount[Us][PAWN]];
int bonus = 0;
// Second-degree polynomial material imbalance by Tord Romstad
// Second-degree polynomial material imbalance, by Tord Romstad
for (int pt1 = NO_PIECE_TYPE; pt1 <= QUEEN; ++pt1)
{
if (!pieceCount[Us][pt1])