X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Ftimeman.cpp;h=5e9304d5c15a4385752a7ec48c96ad98283e415a;hb=29e0d8caa7ba4cda6c1d600887e7056e266f9dde;hp=81c2f39b77e4d40eaff30c57dadeeda6f4f2b1be;hpb=59a9bc93512138eca31ec38d36d8ddd7868ed708;p=stockfish

diff --git a/src/timeman.cpp b/src/timeman.cpp
index 81c2f39b..5e9304d5 100644
--- a/src/timeman.cpp
+++ b/src/timeman.cpp
@@ -34,8 +34,6 @@ namespace {
 
   const double xscale     = 9.3;
   const double xshift     = 59.8;
-  const double yscale     = 7780;
-  const double yshift     = 1e-3; // Larger than 0. Ensures a non-zero importance
   const double skewfactor = 0.172;
 
 
@@ -46,7 +44,7 @@ namespace {
 
   double move_importance(int ply) {
 
-    return yscale / pow((1 + exp((ply - xshift) / xscale)), skewfactor) + yshift;
+    return pow((1 + exp((ply - xshift) / xscale)), -skewfactor);
   }