/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, 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
double move_importance(int ply) {
- return 1 / pow((1 + exp((ply - xshift) / xscale)), skewfactor);
+ return pow((1 + exp((ply - xshift) / xscale)), -skewfactor);
}