Small passed pawn simplification

STC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 21993 W: 4197 L: 4078 D: 13718

LTC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 67213 W: 9135 L: 9077 D: 49001

Bench: 7482426

Resolves #622

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index d00b862..f245a43 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -614,9 +614,6 @@ namespace {
                 mbonus += rr + r * 2, ebonus += rr + r * 2;
         } // rr != 0
 
-        if (pos.count<PAWN>(Us) < pos.count<PAWN>(Them))
-            ebonus += ebonus / 4;
-
         score += make_score(mbonus, ebonus) + PassedFile[file_of(s)];
     }