Tuned some pawns and evaluation constants

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 275d7ae16ae33681013ab6fc76f6fab23c39a1c5..d2aab71df68c393c5e0323d87514efdaf523aa64 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -146,17 +146,17 @@ namespace {
 
   // PassedRank[Rank] contains a bonus according to the rank of a passed pawn
   constexpr Score PassedRank[RANK_NB] = {
-    S(0, 0), S(5, 7), S(5, 13), S(32, 42), S(70, 70), S(172, 170), S(217, 269)
+    S(0, 0), S(5, 7), S(5, 13), S(18, 23), S(74, 58), S(164, 166), S(268, 243)
   };
 
   // PassedFile[File] contains a bonus according to the file of a passed pawn
   constexpr Score PassedFile[FILE_NB] = {
-    S(  9, 10), S(2, 10), S(1, -8), S(-20,-12),
-    S(-20,-12), S(1, -8), S(2, 10), S(  9, 10)
+    S( 15,  7), S(-5, 14), S( 1, -5), S(-22,-11),
+    S(-22,-11), S( 1, -5), S(-5, 14), S( 15,  7)
   };
 
   // PassedDanger[Rank] contains a term to weight the passed score
-  constexpr int PassedDanger[RANK_NB] = { 0, 0, 0, 2, 7, 12, 19 };
+  constexpr int PassedDanger[RANK_NB] = { 0, 0, 0, 3, 6, 12, 21 };
 
   // KingProtector[PieceType-2] contains a penalty according to distance from king
   constexpr Score KingProtector[] = { S(3, 5), S(4, 3), S(3, 0), S(1, -1) };