Villain is 48/39 over 48 hands. He has ~250$ left.

Party Poker
No Limit Holdem Ring game
Blinds: $2/$4
6 players
Converter

Stack sizes:
UTG: $343
Hero: $512.90
CO: $578.55
Button: $765.72
SB: $1064
BB: $448.98

Pre-flop: (6 players) Hero is UTG+1 with 8 9
UTG calls, Hero raises to $18, 3 folds, BB raises to $28, UTG folds, Hero calls.

Flop: 7 K 6 ($62, 2 players)
BB bets $69.55, Hero calls.

Turn: K ($201.1, 2 players)
BB bets $102.12, Hero calls.

River: 6 ($405.34, 2 players)
BB checks, Hero ?