KK versus unknown

[cassette]

Villain is unknown.

My plan was to c/r AI on the turn as he only has $113 left at that point. But then he makes a really small turn bet and it seemed like too much of an overbet to shove.

I shove the river thinking this guy seems really bad from this hand and might call me with worse but will probably check behind with hands I beat. I don't think I can fold despite the gross board as he only has 1/3 of the pot left.

No Limit Hold'em Cash Game - $1/$2 Blinds - 6 Players

Hero ($198 in chips)
MP ($147 in chips)
CO ($117.49 in chips)
BU ($174.10 in chips)
SB ($31.18 in chips)
BB ($226.80 in chips)

----- HOLE CARDS -----
Dealt to hero [K[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/spade.gif[/img]]
Hero raises to $8, MP calls, 4 folds.

Flop: ($19) 9[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/club.gif[/img] (2 Players)
Hero bets $13, MP raises to $26, Hero calls.

Turn: ($71) 8[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, MP bets $16, Hero raises to $50, MP calls.

River: ($171) T[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero bets all-in to $63,