HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-21 01:27:16 +08:00
Code Issues Packages Projects Releases Wiki Activity

Tuning of assorted values

Browse Source 
Passed STC

LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 45401 W: 8590 L: 8274 D: 28537

Passed LTC

LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 36089 W: 5589 L: 5331 D: 25169

Bench: 8397672

Resolves #445
This commit is contained in:
Stefano80
2015-10-05 19:48:47 -07:00
committed by Gary Linscott
parent 540b49a152
commit 436c303731
3 changed files with 17 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/material.cpp
View File

@@ -31,7 +31,7 @@ namespace {
// Polynomial material imbalance parameters
// pair pawn knight bishop rook queen
const int Linear[6] = { 1852, -162, -1122, -183, 249, -154 };
const int Linear[6] = { 1756, -164, -1067, -160, 234, -137 };
const int QuadraticOurs[][PIECE_TYPE_NB] = {
// OUR PIECES
@@ -199,11 +199,11 @@ Entry* probe(const Position& pos) {
// drawish scale factor for cases such as KRKBP and KmmKm (except for KBBKN).
if (!pos.count<PAWN>(WHITE) && npm_w - npm_b <= BishopValueMg)
e->factor[WHITE] = uint8_t(npm_w < RookValueMg ? SCALE_FACTOR_DRAW :
npm_b <= BishopValueMg ? 4 : 12);
npm_b <= BishopValueMg ? 4 : 14);
if (!pos.count<PAWN>(BLACK) && npm_b - npm_w <= BishopValueMg)
e->factor[BLACK] = uint8_t(npm_b < RookValueMg ? SCALE_FACTOR_DRAW :
npm_w <= BishopValueMg ? 4 : 12);
npm_w <= BishopValueMg ? 4 : 14);
if (pos.count<PAWN>(WHITE) == 1 && npm_w - npm_b <= BishopValueMg)
e->factor[WHITE] = (uint8_t) SCALE_FACTOR_ONEPAWN;