$4/180 Scary River Card, Check or move in?

[markbris]

About 10 hands in, villain had doubled up early calling a 500 bet on the flop and hitting a gutshot. Do I push it in on the river or check and give him a chance to bluff?


PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (9 handed) internettexasholdem.com

MP3 (t1520)
CO (t1530)
Button (t2390)
SB (t1210)
Hero (t1395)
UTG (t1735)
UTG+1 (t2170)
MP1 (t1630)
MP2 (t3710)

Preflop: Hero is BB with 9[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t90</font>, MP2 calls t90, <font color="#666666">4 folds</font>, Hero calls t60.

Flop: (t285) 3[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets t210</font>, MP1 folds, MP2 calls t210.

Turn: (t705) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t450</font>, MP2 calls t450.

River: (t1605) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero ?