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BB is playing loose. On every occasion prior to this hand when folded to me and I raise his BB, he has called instantly. I feel I played fine till the turn where I messed up big time. How much do u raise preflop knowing his earlier actions in similair situations? How much do u bet on the flop? And most importantly whats ur action on this turn?

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (3 handed) converter

Button (t3435)
Hero (t4115)
BB (t5950)

Preflop: Hero is SB with K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t600</font>, BB calls t400.

Flop: (t1050) 8[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t800</font>, BB calls t800.

Turn: (t2650) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t1200</font>, <font color="#CC3333">BB raises to t4525</font>, Hero calls t1490 (All-In).

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Raise to 750-800 preflop then pot bet or overbet the flop.