X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=0249ee3b2a35c24071feb935069ed2e106926e59;hp=d291e46b6c8c21c7816952adf89c311874cbcbc5;hb=1322ab97c737fe761bd6ae8786f852851b8f019f;hpb=918533dc06f8d5f9458e731d38ebdac1b96ef9eb

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index d291e46b..0249ee3b 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -29,7 +29,6 @@
 #include "evaluate.h"
 #include "material.h"
 #include "pawns.h"
-#include "scale.h"
 #include "thread.h"
 #include "ucioption.h"
 
@@ -861,8 +860,7 @@ namespace {
         // value if the other side has a rook or queen.
         if (square_file(s) == FILE_A || square_file(s) == FILE_H)
         {
-            if (   pos.non_pawn_material(Them) <= KnightValueMidgame
-                && pos.piece_count(Them, KNIGHT) <= 1)
+            if (pos.non_pawn_material(Them) <= KnightValueMidgame)
                 ebonus += ebonus / 4;
             else if (pos.pieces(ROOK, QUEEN, Them))
                 ebonus -= ebonus / 4;
@@ -895,7 +893,7 @@ namespace {
             Square s = pop_1st_bit(&b);
             Square queeningSquare = relative_square(c, make_square(square_file(s), RANK_8));
             int d =  square_distance(s, queeningSquare)
-                   - (relative_rank(c, s) == RANK_2) // Double pawn push
+                   - int(relative_rank(c, s) == RANK_2) // Double pawn push
                    - square_distance(pos.king_square(opposite_color(c)), queeningSquare)
                    + int(c != pos.side_to_move());
 
@@ -1066,9 +1064,8 @@ namespace {
   }
 
 
-  // scale_by_game_phase() interpolates between a middle game and an endgame
-  // score, based on game phase.  It also scales the return value by a
-  // ScaleFactor array.
+  // scale_by_game_phase() interpolates between a middle game and an endgame score,
+  // based on game phase. It also scales the return value by a ScaleFactor array.
 
   Value scale_by_game_phase(const Score& v, Phase ph, const ScaleFactor sf[]) {
 
@@ -1076,7 +1073,9 @@ namespace {
     assert(eg_value(v) > -VALUE_INFINITE && eg_value(v) < VALUE_INFINITE);
     assert(ph >= PHASE_ENDGAME && ph <= PHASE_MIDGAME);
 
-    Value ev = apply_scale_factor(eg_value(v), sf[(eg_value(v) > Value(0) ? WHITE : BLACK)]);
+    Value eg = eg_value(v);
+    ScaleFactor f = sf[eg > Value(0) ? WHITE : BLACK];
+    Value ev = Value((eg * f) / SCALE_FACTOR_NORMAL);
 
     int result = (mg_value(v) * ph + ev * (128 - ph)) / 128;
     return Value(result & ~(GrainSize - 1));