BB - Only 12 hands on villain, seemed pretty fishy at 58/0/0 (3bet).

MP - 30/28/12 (3bet) over 61 hands. Cbet of 90%, had seen villain raise with hands like T8o in CO.

PokerStars - $0.05 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

MP: $5.53
CO: $5.43
BTN: $5.05
Hero (SB): $6.00
BB: $3.55
UTG: $10.17

Hero posts SB $0.02, BB posts BB $0.05

Pre Flop: (pot: $0.07) Hero has A 4

fold, MP raises to $0.15, CO calls $0.15, fold, Hero calls $0.13, BB calls $0.10

Flop: ($0.60, 4 players) K 5 9
Hero checks, BB bets $0.25, MP raises to $0.90, fold, Hero???

OK, how wide is CO raising here? Does he realise BB is a fish and wants to iso? Is he doing it with a marginal hand or a strong made hand.

I put CO on this range (not sure if it's too wide or maybe not wide enough?)

Text results appended to pokerstove.txt

23,760 games 0.000 secs 4,752,000 games/sec

Board: Kd 9h 5h
Dead:

equity win tie pots won pots tied
Hand 0: 35.223% 35.22% 00.00% 8369 0.00 { Ah4h }
Hand 1: 64.777% 64.78% 00.00% 15391 0.00 { KK+, 99, 55, AKs, KhQh, QhJh, JhTh, AKo }

I wasn't sure whether to just flat as BB hadn't shown any agg so far so couldn't see him 3betting. Can I fold here or do I want to get it AI?