X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fpsqt.cpp;h=7fa36ac83dd4a4d5b0e8e19f96f59f5699a4a049;hp=8bad7ed427c5c2dd2f2de48ab9a5bf64b58d8b29;hb=86ee4eb84d54dac3f9de5b455ba41909c7722173;hpb=c6839a26155c18dbb7700175971fe01c5a67b01c

diff --git a/src/psqt.cpp b/src/psqt.cpp
index 8bad7ed4..7fa36ac8 100644
--- a/src/psqt.cpp
+++ b/src/psqt.cpp
@@ -21,6 +21,7 @@
 #include <algorithm>
 
 #include "types.h"
+#include "bitboard.h"
 
 namespace PSQT {
 
@@ -111,10 +112,10 @@ void init() {
 
       for (Square s = SQ_A1; s <= SQ_H8; ++s)
       {
-          File f = map_to_queenside(file_of(s));
+          File f = File(edge_distance(file_of(s)));
           psq[ pc][ s] = score + (type_of(pc) == PAWN ? PBonus[rank_of(s)][file_of(s)]
                                                       : Bonus[pc][rank_of(s)][f]);
-          psq[~pc][~s] = -psq[pc][s];
+          psq[~pc][flip_rank(s)] = -psq[pc][s];
       }
   }
 }