Houdini for example tries to make it so that +1.00 evaluation is a win in 75% of cases in blitz games and +1.5 represents 90% chance of winning (http://www.crux

Houdini for example tries to make it so that +1.00 evaluation is a win in 75% of cases in blitz games and +1.5 represents 90% chance of winning (http://www.cruxis.com/chess/houdini.htm http://www.cruxis.com/chess/houdini.htm). Anyway, this is not a problem at all, this was introduced so less electricity is wasted when the position is a clear win/loss.