First, what do we think about the squeeze from the BB? I think I could sometimes call, sometimes raise, but I'm not completely sure. Seems like button is dead money a lot of the time.

On river, I went with a block sizing (I think? 1/3 is a good block or should I go even smaller?) thinking that the main hand that beats me is a weak K which will just call, whereas anything really strong will raise and I can just fold. Worried that after the turn my hand is face up and V will know he can just blast me off the river, hence the block.

Looking back, maybe this is better played as a check fold since a weak K or middle PP (which probably is the bulk of V's range) probably just checks back and I don't think V has much air that might blast river after calling the flop?

Ignition - $0.25 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

Hero (BB): 100 BB
CO: 98.6 BB (VPIP: 0.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 3)

SB posts SB 0.4 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.4 BB) Hero has A 9

fold, fold, CO raises to 3 BB, BTN calls 3 BB, fold, Hero raises to 12.8 BB, CO calls 9.8 BB, fold

Flop: (29 BB, 2 players) K 8 4
Hero bets 8 BB, CO calls 8 BB

Turn: (45 BB, 2 players) 3
Hero checks, CO checks

River: (45 BB, 2 players) 9
Hero bets 12 BB, CO raises to 77.8 BB and is all-in, fold

I think it depends on his preflop range:
1. Fish or Reg(by broken stack looks like fish)
2. You did squeeze small so could be wider
3. who's in the BTN if it's fish/whale, reg would call wider

imo villain has a lot air, Any AXs w/bdfd, any Brodway w/bdfd, any pp, any lower SC. I think he continoues with most of his range otf vs your 25% cb. And I think he is weaker after not betting turn.

I would Squeeze larger to around 15-16bb, as played OTR check/call vs most sizings or block/fold.

Preflop is just a call but 3bet could be okay if you are trying to isolate BTN.

It's well played postflop as long as you fold river.

Doesn't seem to be worth a block to me on the river given the action and a flush river.