Hey thanks for that! I really just coded the classic "Six Card Golf" game, but quite happy you like it :)
I'm trying to think of a way to fix the last card flip, it's quite annoying, but the way I coded it makes it a bit hard.
Wasn't aware of the HTML bug, I'll try to maybe change the size, or make it playable full-screen like Dr.Dovik suggested would fix that.
About the going first advantage, when I play IRL, it's usually the winner of the last round. I could totally put this in place, I think it wouldn't be too complex
Thanks for your feedback, and for playing it :)
edit: Just realized that to get back focus to the game you need to click on the blue zone. I think I've just made it bigger I think It should helps.