COMMENT DELETED - Posted in wrong thread!
Have you ever played a '!!' move?

During that game, I thought I was in danger and had to go for a draw! I saw that after Bxc5, then I could get perpetual with Qxg3+, and that's what I went for. I didn't realise I was winning at that point!
It also takes Stockfish 10+ seconds to find it, so it's a pretty hard move to find :)

I apologize if this is a repost , apparently my previous comment wasn't posted . So here goes. This is a 30 min game with No increment .The Climax of the game starts at move 22 (;

THis is possibly the best game game I've ever played though I don't know whether it has a ! or !!. It all starts from move 28

Sutirtha11 , I am not sure if it deserves a ! or !! but it is certainly one of the most aesthetically pleasing piece mating setups I've seen ! (;

Yeah well I had great fun playing this game and that's why I play chess!! Would love to play one more of this kind!!

Hmm g5 is a pretty obvious and prinicipal move, its also not really hard to see the mate in 6 after Bxd4. So of course its a good move which deserves a "!" but surely not a brilliant move. And yes even amateurs can find brilliant moves.

@pikachu: this rook sacrifice is probably one of your biggest blunders! To the question whether it deserves a "!" or a "!!" I can just say it clearly deserves a "??????????????????????????????????????????". I mean you just blunder a rook for no compensation. Simply Qe7 instead of the trashy c5-move and you are completly lost.

http://www.chess.com/livechess/game?id=1207253965
I don't know if this deserves a !!, but it's the best move I've played so far.
Sadly, the best I achieved so far was probably '!?'.