NL10 rush second nutflush sick river bet

[babyonboard]

$0.05/$0.10 No Limit Holdem
FullTiltPoker (http://weaktight.com/ftp/)
6 Players
Hand Conversion Powered by weaktight.com (http://weaktight.com/)

Stacks:
UTG Hero ($11.19)
UTG+1 olsen166 ($19.82)
CO LowPotLimit ($10.57)
BTN fralender ($10)
SB Maermot ($12.32)
BB celticthunder ($18.31)

Pre-Flop: ($0.15, 6 players) Hero is UTG :kd: :as:
Hero raises to $0.30, 4 folds, celticthunder calls $0.20

Flop: :2d: :3d: :qd: ($0.65, 2 players)
celticthunder checks, Hero bets $0.40, celticthunder raises to $1.85, Hero calls $1.45

Turn: :jh: ($4.35, 2 players)
celticthunder checks, Hero checks

River: :9d: ($4.35, 2 players)
celticthunder bets $4.35, Hero ??

what do u think about flop play and his river potsize bet? villain is unknown.

[castor11]

I think fold, but I am a nitD:

[want2push]

what do u think about flop play and his river potsize bet? villain is unknown.
You should play for stacks on this flop.
I like more a 3bet/call on the flop. Villain may fold some hands if you 3bet.

[Holdenper]

His range is really polarized imho. Adx or air (maybe a pair which he turned into a bluff). Againts a random...Fold probably...
He's got stack, so I would assume he's ok-good without stats+history. So he won't vbet Jd here, neither Qx.
U called his flop CR, so you've got SD value, or some kind of draw. You check back the turn, so u don't have 2pair or set. You can have KQ, AQ, or draw.
OTR u won't fold Ad, and Kd is call/fold, he can't know that 4 sure. So u represent what you've got more or less, and a probably good/ok player bet pot. It's 80% Ad