SB ($1.83)
Hero ($4.93)
Dealt to Hero K♥ K♣
Hero raises to $0.20, fold, fold, fold, fold, fold, fold, SB calls $0.18, fold
FLOP ($0.45) 2♠ 8♣ 6♣
SB checks, Hero bets $0.30, SB raises to $0.70, Hero ?
I have no stats for this villain, just had 10 hands and it was actually the first one he played.
On a very similar situation I posted before, again with KK and facing a raise on the flop, but with a scary board of 789, I was told to fold because a lot of two-pair/set/straight were possible.
Now, there are no made straights and two-pair are unlikely to have called preflop. So I think it is either a set or an overpair.
There are more overpairs (99-QQ, 24 hands) than sets (9 hands) with this flop. But I don't know how often one could check-raise an overpair on the flop.
So, raise again (actually put him all in on this occasion) or fold?