Convert PST tables to relative values

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 8408a8a3d1e29112428e2ddabb720f9184d8ebf6..93e344538a9776915eacd1b9090b1d37779e52e9 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1715,11 +1715,15 @@ void Position::init() {
   zobExclusion  = rk.rand<Key>();
 
   for (Piece p = WP; p <= WK; p++)
+  {
+      Score ps = make_score(piece_value_midgame(p), piece_value_endgame(p));
+
       for (Square s = SQ_A1; s <= SQ_H8; s++)
       {
-          pieceSquareTable[p][s] = make_score(MgPST[p][s], EgPST[p][s]);
+          pieceSquareTable[p][s] = ps + PSQT[p][s];
           pieceSquareTable[p+8][flip(s)] = -pieceSquareTable[p][s];
       }
+  }
 }