[Lmn55d]

Why did you checkraise the river instead of capping the turn? I don't see an advantage really. Also I would lean towards 3betting the flop in this spot. I think someone holding KK or QQ will often either cap the flop (then you can still checkraise the turn) or call your flop 3bet and raise the turn, allowing you to 3bet. Also, is it possible he's raising the flop with AK trying to get a free card? In that case 3betting the flop is also better.