NL 200: Lost with KK b/c of turn mini-bet

[Stonewalled]

Villain is 19/6/2 over 100 hands. I've seen him slowplay a big hand, and make a bad call with a marginal holding on a scary board. I've been playing LAG in position on him, reraising him out of a couple of pots pre-flop, as well as causing him to fold with a couple of continuation bets very recently.

His turn bet confused me.

PokerStars No-Limit Hold'em, $2 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown</font>

SB ($185.70)
BB ($234.20)
UTG ($141)
UTG+1 ($277.55)
MP1 ($245.90)
Hero ($294.10)
MP3 ($194)
CO ($524.10)
Button ($31.40)

Preflop: Hero is MP2 with K, K.
1 fold</font>, UTG+1 raises to $6</font>, 1 fold</font>, Hero raises to $18</font>, 5 folds</font>, UTG+1 calls $12.

Flop: ($39) A, 5, 8 (2 players)</font>
UTG+1 checks, Hero bets $20</font>, UTG+1 calls $20.

Turn: ($79) 9 (2 players)</font>
UTG+1 bets $20</font>, Hero ???

[mlane]

hrmm seems like a very easy fold to me.

[Stonewalled]

My thought, too, initially. But why would he minibet? And what with?

[mark_foley]

he might be taking a shot at you b/c of your weak flop bet unless that bet size is typical for you.

[Stonewalled]

[ QUOTE ]
he might be taking a shot at you b/c of your weak flop bet unless that bet size is typical for you.

[/ QUOTE ]

It was lower than normal. Usually it's between 2/3 and psb.

[BlueBear]

Looks like villain is "blocking" with a weak-ace.

[free card]

I would put Villain on AJ or lower. I agree with Blue Bear that this looks like a blocking bet. However, because of the way you have been playing, I don't think he will give up his hand against you. Your best option on the turn is to fold. If you just flat call, you're likely to face a bet on the river.