Board Game Arena

I'm finding that to be part of the interesting challenge of playing by two-player rules. You get down to two cards, say, a 6 and an 8, but you can't go out by playing two sets of one card. You have to figure out how to play each one differently.

Agreed with the op... I was away from the arena for a few weeks and was unpleasantly surprised to start a game in professional mode.