10.1.5 Hints:

Settings->Evaluation - choose Supremo or World Class if you want hints to be very accurate, but, like the playing skill setting, you may find that it can take as long as 15 seconds to get an answer on a 1GHz PC. Expert will be very fast, but for some positions where you need to consider what your opponent may do on his roll and how you will follow it up, the results will be less accurate. A wild guess would be somewhere around 2 or 3 percent of the time, World Class or stronger settings would give a different best move and maybe less than 1/2 percent of the time, the Expert result would be seriously wrong.