[macgyverlol]

Fold preflop, but you know that.

I check behind on the river. He called your flop raise so he had to catch a piece of something. There's just too much out there that he could have that would call your river bet. He could be on diamond draw with Kd, he could have checked the river with a Q hoping you'd bet, he could have a weirdly played JT or 99, you just dont know. And that's not a good spot to try to bluff, especially since you dont know your opponent.