baby flush, river situation

[guaranteedBluff]

Have played on 10 hands with the villain - no reads.

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

Hero ($68.35)
SB ($42.35)
BB ($25.95)
UTG ($52.15)
MP ($53.70)
CO ($30)

Preflop: Hero is Button with 5[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.25.
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $1</font>, CO calls $1, Hero calls $1, <font color="#666666">1 fold</font>, BB calls $0.50.

Flop: ($4.25) 9[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">MP bets $2</font>, CO calls $2, Hero calls $2, BB folds.

Turn: ($10.25) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP bets $3</font>, CO calls $3, <font color="#CC3333">Hero raises to $20</font>, MP calls $17, CO folds.

River: ($53.25) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero???

[guaranteedBluff]

bump

[rikz]

I'd check behind on the river. You're $20 raise on the turn is obviously a flush. He's calling with a set hoping to fill up on the river, or he's calling with a Kc or Qc hoping to make a flush on the river, or he's got you beat and is hoping to trap you on the river. The first 2 cases will fold to any serious bet from you on the river. The higher flush will stack you when he puts you all-in with a check-raise.

So, in this spot, since the only hand that calls is a hand that beats you, I'd check behind.