Tweak kingFlankAttacks factor in kingDanger

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index ee98da90e60097714a132c70e50af020705e250f..0963ddd606d20b6a5fdd2593537a412467f2188b 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -457,7 +457,7 @@ namespace {
                  - 873 * !pos.count<QUEEN>(Them)
                  -   6 * mg_value(score) / 8
                  +       mg_value(mobility[Them] - mobility[Us])
-                 +   5 * kingFlankAttacks * kingFlankAttacks / 16
+                 +   3 * kingFlankAttacks * kingFlankAttacks / 8
                  -   7;
 
     // Transform the kingDanger units into a Score, and subtract it from the evaluation