training issues

hitting 'proceed training' sends me back to the same puzzle 4995, each time, after which l can 'begin training'.
This happens in Chrome browser on a Macbook pro.
Anyone else got this problem?

I dont understand some of the training solutions. Some of them seem absolutely incredibly not kool. At times, the queen makes such an incredibly loser move !!! And i try to be logical but the opponent;s move is far from it !!!

Sometimes the "opponent" makes a weird move too :D