I noted your last reply in this thread was July. This is now late November and the game freezing issue has not been resolved. I'm having the same problem as many others -- the game is apparently not loading completely since there is no option to turn off the tutorial (which I don't need anyway). The game loads, though incompletely, goes through the three-step how-to-play, I make one move and the game freezes. Yes, I have tried the diagnostics you suggested. Tried other browsers (same results) . This has been going on for months. Sloppy coding??
I like the game, but as it currently is, it's unplayable. I got lucky for the last challenge -- the game worked and I thought "Yayy! They fixed the problem!" Today's weekly challenge ... ugh, game is still freezing after one move. Since the challenge is mega matches, that means it will take more than one move per game to achieve that goal.