X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftimeman.cpp;h=f6ead0b2a7acf18b8a076c04a5138b428aad52a7;hp=6d3b7314705f1098273837863d1dedaf4b94a1bd;hb=43682d08f7a85a997ff71fdb68ee6392c5d49b21;hpb=7ae3c05795e79c9bd945607cdcfb08198f4c4b45

diff --git a/src/timeman.cpp b/src/timeman.cpp
index 6d3b7314..f6ead0b2 100644
--- a/src/timeman.cpp
+++ b/src/timeman.cpp
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -33,8 +33,8 @@ namespace {
   enum TimeType { OptimumTime, MaxTime };
 
   const int MoveHorizon   = 50;   // Plan time management at most this many moves ahead
-  const double MaxRatio   = 7.09; // When in trouble, we can step over reserved time with this ratio
-  const double StealRatio = 0.35; // However we must not steal time from remaining moves over this ratio
+  const double MaxRatio   = 7.3; // When in trouble, we can step over reserved time with this ratio
+  const double StealRatio = 0.34; // However we must not steal time from remaining moves over this ratio
 
 
   // move_importance() is a skew-logistic function based on naive statistical
@@ -44,9 +44,9 @@ namespace {
 
   double move_importance(int ply) {
 
-    const double XScale = 7.64;
-    const double XShift = 58.4;
-    const double Skew   = 0.183;
+    const double XScale = 6.85;
+    const double XShift = 64.5;
+    const double Skew   = 0.171;
 
     return pow((1 + exp((ply - XShift) / XScale)), -Skew) + DBL_MIN; // Ensure non-zero
   }