Grabbed by Holdem Manager
PL Omaha $0.10(BB) Replayer
SB ($10.05)
BB ($7.36)
UTG ($6.25)
UTG+1 ($15.47)
UTG+2 ($10)
MP1 ($10.39)
MP2 ($7.51)
CO ($8.08)
Hero ($9.65)
Dealt to Hero 4♥ 3♣ Q♠ 6♠
UTG calls $0.10, fold, fold, fold, fold, fold, Hero calls $0.10, fold, BB checks
FLOP ($0.35) 7♥ Q♦ 3♥
BB checks, UTG checks, Hero bets $0.34, BB calls $0.34, UTG folds
TURN ($1.03) 7♥ Q♦ 3♥ 4♦
BB checks, Hero bets $0.98, BB calls $0.98
RIVER ($2.99) 7♥ Q♦ 3♥ 4♦ 6♦
BB bets $2.85, Hero folds
BB wins $2.85
Villian either has the flush or is bluffing having missed the heart draw
I decided to give give him credit for it. The player was unknown
What is your default play against unknowns in such situation