It's best to play at casinos that offer a game history option. When participating in a contest, you must always post a game history that shows that the win was achieved while playing in real mode, not in fun mode.
I played in Autoplay mode. When I tried to save the screenshot with the "Watch Replay" option, the page crashed after a few seconds. I tried several times and changed browsers, but the problem persists. Has anyone else encountered this problem?