Simplify futility move count array formula

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 5b56af58051de0e8eff643260468c099f917f650..a16fceb1351f3a9bda4f7c8619f2201ae9d301ad 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -140,8 +140,8 @@ void Search::init() {
   // Init futility move count array
   for (d = 0; d < 32; ++d)
   {
   // Init futility move count array
   for (d = 0; d < 32; ++d)
   {

-      FutilityMoveCounts[0][d] = int(2.4 + 0.222 * pow(d * 2 + 0.00, 1.8));
-      FutilityMoveCounts[1][d] = int(3.0 + 0.300 * pow(d * 2 + 0.98, 1.8));
+      FutilityMoveCounts[0][d] = int(2.4 + 0.773 * pow(d + 0.00, 1.8));
+      FutilityMoveCounts[1][d] = int(2.9 + 1.045 * pow(d + 0.49, 1.8));

   }
 }
 
   }
 }