X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fpawns.cpp;h=02c584e61aa2edd28e17641dd8a8dd82571b6c08;hp=1131b5e81a77cc4a02fc2133ef2221ea97fdf873;hb=d2d4e85f25061aacd65a8b458b79cad15b74a5bb;hpb=efd4ca27c4d7abad41e0469aa9b3b26b12068914

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 1131b5e8..02c584e6 100644
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -32,35 +32,35 @@ namespace {
   #define S(mg, eg) make_score(mg, eg)
 
   // Pawn penalties
-  constexpr Score Isolated = S( 4, 20);
-  constexpr Score Backward = S(21, 22);
-  constexpr Score Doubled  = S(12, 54);
+ constexpr Score Isolated = S( 5, 15);
+ constexpr Score Backward = S(9, 24);
+ constexpr Score Doubled  = S(11, 56);
 
   // Connected pawn bonus by opposed, phalanx, #support and rank
   Score Connected[2][2][3][RANK_NB];
 
   // Strength of pawn shelter for our king by [distance from edge][rank].
   // RANK_1 = 0 is used for files where we have no pawn, or pawn is behind our king.
-  constexpr Value ShelterStrength[int(FILE_NB) / 2][RANK_NB] = {
-    { V( 16), V(82), V( 83), V( 47), V( 19), V( 44), V(  4) },
-    { V(-51), V(56), V( 33), V(-58), V(-57), V(-50), V(-39) },
-    { V(-20), V(71), V( 16), V(-10), V( 13), V( 19), V(-30) },
-    { V(-29), V(12), V(-21), V(-40), V(-15), V(-77), V(-91) }
+  constexpr  Value ShelterStrength[int(FILE_NB) / 2][RANK_NB] = {
+    { V( -3), V(81), V( 93), V( 58), V( 39), V( 18), V(  25) },
+    { V(-40), V(61), V( 35), V(-49), V(-29), V(-11), V(-63) },
+    { V(-7), V(75), V( 23), V(-2), V( 32), V( 3), V(-45) },
+    { V(-36), V(-13), V(-29), V(-52), V(-48), V(-67), V(-166) }
   };
 
   // Danger of enemy pawns moving toward our king by [distance from edge][rank].
   // RANK_1 = 0 is used for files where the enemy has no pawn, or their pawn
   // is behind our king.
   constexpr Value UnblockedStorm[int(FILE_NB) / 2][RANK_NB] = {
-    { V(54), V( 48), V( 99), V(91), V(42), V( 32), V( 31) },
-    { V(34), V( 27), V(105), V(38), V(32), V(-19), V(  3) },
-    { V(-4), V( 28), V( 87), V(18), V(-3), V(-14), V(-11) },
-    { V(-5), V( 22), V( 75), V(14), V( 2), V( -5), V(-19) }
+    { V(89), V( 107), V( 123), V(93), V(57), V( 45), V( 51) },
+    { V(44), V( -18), V(123), V(46), V(39), V(-7), V(  23) },
+    { V(4), V( 52), V( 162), V(37), V(7), V(-14), V(-2) },
+    { V(-10), V( -14), V( 90), V(15), V( 2), V( -7), V(-16) }
   };
 
   // Danger of blocked enemy pawns storming our king, by rank
   constexpr Value BlockedStorm[RANK_NB] =
-    { V(0), V(0), V( 81), V(-9), V(-5), V(-1), V(26) };
+    { V(0), V(0), V( 66), V(6), V(5), V(1), V(15) };
 
   #undef S
   #undef V