100nl Great river, what to bet?

[1C5]

No read but villian seems to not like his hand so much on the river.

Party Poker No-Limit Hold'em, $1 BB (6 handed) Hand History converter Courtesy of PokerZion.com

saw flop|<font color="#C00000">saw showdown</font>

<font color="#C00000">Hero ($223.05)</font>
MP ($110.58)
CO ($0)
Button ($94.50)
SB ($132.65)
<font color="#C00000">BB ($100)</font>

Preflop: Hero is UTG with A[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $4</font>, <font color="#666666">1 fold</font>, Button calls $4, <font color="#666666">1 fold</font>, BB calls $3.

Flop: ($12.50) 2[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets $11</font>, Hero calls $11, Button folds.

Turn: ($34.50) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $21</font>, Hero calls $21.

River: ($76.50) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets ?

[fadedstar]

hmmm... you either want to make it look like a steal for selling it cheaply. I tend to bet high.

[BombayBadboy]

50.

[wrschultz]

Shove.

[kaah]

depends on the vill. sometimes to low so you acctualy do get a call and sometimes so high that the Jd gets confused and calls. but on this board i prob 25 and hope he calls with whatever set/A he has.

[FenixOnTilt]

would it be horrible raising the turn against an unknown here?

as played, bet pot to put him allin or smth around 30