Remove "Threat Depth" ucioption

[stockfish] / src / movepick.cpp

diff --git a/src/movepick.cpp b/src/movepick.cpp
index 582978e69d0c3f1fb2c6535c82d71f564cc85aa7..6bb5c315554abab89fe17896af79e7427af2e980 100644 (file)
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -213,6 +213,7 @@ void MovePicker::score_noncaptures() {
   Move m;
   Piece piece;
   Square from, to;
+  int hs;
 
   for (MoveStack* cur = moves; cur != lastMove; cur++)
   {
@@ -220,7 +221,14 @@ void MovePicker::score_noncaptures() {
       from = move_from(m);
       to = move_to(m);
       piece = pos.piece_on(from);
-      cur->score = H.move_ordering_score(piece, to);
+      hs = H.move_ordering_score(piece, to);
+
+      // Ensure history has always highest priority
+      if (hs > 0)
+          hs += 10000;
+
+      // Gain table based scoring
+      cur->score = hs + 16 * H.gain(piece, to);
   }
 }