So I've got two questions regarding this hand:

• Do i have a 4bet/fold range pre? If so, is AQs in it? (I assume not) What about AQo, AJs, AJo
• Do you like my turn check? I wanted to give V a chance to bluff river and if he checks, my value bet on the river looks even bluffier

PokerStars - $0.02 NL (6 max) - Holdem - 5 players
Hand converted by PokerTracker 4

BB: 58 BB (VPIP: 36.82, PFR: 13.50, 3Bet Preflop: 3.53, Hands: 207)
UTG: 67.5 BB (VPIP: 21.21, PFR: 6.06, 3Bet Preflop: 0.00, Hands: 33)
CO: 100 BB (VPIP: 11.11, PFR: 11.11, 3Bet Preflop: 0.00, Hands: 9)
Hero (BTN): 140.5 BB
SB: 108.5 BB (VPIP: 24.59, PFR: 18.03, 3Bet Preflop: 3.70, Hands: 64)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has A Q

fold, fold, Hero raises to 2.5 BB, SB raises to 11.5 BB, fold, Hero calls 9 BB

Flop: (24 BB, 2 players) Q 4 4
SB bets 13.5 BB, Hero calls 13.5 BB

Turn: (51 BB, 2 players) J
SB checks, Hero checks

River: (51 BB, 2 players) 9
SB checks, Hero bets 32.5 BB

You should have a 4bet bluffing range, AQs shouldn't be in it unless you think it's more +EV than calling the 3bet.

I like the turn check as nothing weaker calls, maybe JT, J9. The river doesn't look like a bluff. If he has KK+ and afraid of a full house then half pot or less protects you from that, and also gets calls from Jx, TT sometimes.

Vs this sizing no, you shouldn't have a 4-bet bluffing range at NL2.

In fact you shouldn't have a 4-bet bluffing range at NL2 at all xD Unless you want to burn some money ofc.

You def can consider 4-betting with this hand FOR VALUE vs some aggrotards with 3-bet from the blinds >15%. But it's 4-bet(for value)/fold.

As played turn check is fine. Can't see too many hands (according to his preflop sizing) from what you have 3 streets of value.

What is a value raise/fold?

Assuming that villain calling our 4-bet with really wide range and vs that range we ahead with our hand (AQs) and 5-bet-jamming with really strong range and vs that range we clearly behind and our equity is not big enough to call and we not loosing much equity because every hand in his 5-bet-jamming range (QQ+,AK) dominate our hand.

Basically we assume that villain almost never 5-bet-jamming hand vs what we have decent equity and villain either calling too much our 4-bets and we in really good shape either folding too much to our 4-bets and we collecting nice dead money really often.

This is clearly exploitable play but i think villains at NL2 is not good enough to exploit us by bluff 5-bet-jamming. So we exploit them

This is not true btw. For me your turn bet looks bluffier than delayed bet otr. See, I don't think you checking back turn with air (flop floats) because you don't have showdown value with them and you want to put pressure on opponent and take down pot. For me your turn checking back range looks like hand with showdown value which what you either also checking back river (little sdv: 88...) either value betting river (strong enough sdv: AQ...). You don't have air on the river to represent bluff. But anyway I prefer check back turn to pot control. He might check/call your turn bet and then leading river 1/3-1/2 and you loose more. And ofc your turn check might induce some bluffs (vs your perceived 88's or something like that) and also villain can catch an A with his AK and paying you off.

...ahuh, we exploit how they're both calling and folding too much to 4bets.