Ron,

IMO is this: KK mid postion you did the well, of raising 3 x bb. 1 caller. Many players will call just about anything with KQ and thats sad imo. With that flop he checked to you I might have raised more than the original raise of 200 to try to force out his pair of queens. On the turn I would have either gone all in or maybe raised there. Since I believe you though slow playing your KK against this flop and turn would work. Of course he might of called.

KK is a very hand to fold on so the river another queen comes out. Of course he called the raise, raised flop, turn checked, then river he bets out instead of checking again. In this read I would have mucked them, unless you had him covered on chips and went all in on the flop or so.

So you didnt play it that bad just the turn and river only faulty.