Starting to move up to 2/5 NLHE and the field is much more TAG with one or two LAGs. The players are competent and I think overall it's been good for my game as it forces me into tough decisions and to think carefully about each action. At this level the 3-betting % goes way up. I'm wondering what hands you guys are 4-betting, what hands you're folding and what you're defending. Obviously there's a lot of factors at play so I wanted to give some examples.

V1 - TAGish white kid that plays 10/20 and 5/10. Can 3-bet hands like KTs, QJs while IP.

V2 - Asian LAG, Can 3-bet hands as wide as K7s all AXs, 44+.

Say you're opening from CO to 15$ at 2/5 and one of these two 3-bets you from the BB to 50$. All else folded. How would you continue? I once 4-bet V2 with K7s for 3x his 3-bet and he snap folded so I'm wondering what the adjustment is. At 1/3 I rarely defend against a 3-bet just because its usually QQ+ AKo/s.

Vs a player that tight in h1 who only calls a 4b w aK and QQplus i think you can 4b at a higher frequency looking to take it down. Vs the second player im almost never folding to a 3b in position. But still fairly tight Oop. Not going to 4b much oop either except with very top of range, but i will 4b more ip. Figure out his 3b range and 4b something like the top 25% of that. If he is a thinking player mix in some of the hands higher up in your range as calls.

Vs first player fold almost everything you arent going to 4b oop. Ip im looking at stack sizes. If he makes it $50 to go or $35 over my raise I need him to have $600plus left to think about calling Ip with pocket pairs, suited aces etc. you arent going to stack a player like this even 33% of the time you flop a set and flushes dont come easy.

Also consider their postflop skills and styles

Depends if they are positionally aware. They should be tighter from the bb in theory because a lot more of their range is incentived to just call.

Your 4bet range should be QQ+, AQo+ pure.

You can mix JJ or just do it pure. And maybe mix in A9s.

But it should generally be something close to this.

You can flat KTs-KQs, ATs-AQs, A5s, and 77-TT.

If they're doing it from a position where they would be a bit wider like from Button or SB you can increase the 4bet range using the same hand groupings and just reduce the flatting range to like KQs, AJs, AQs, 77-99.

And in general if you feel they're 3betting too wide you need to open tighter. So drop off the bottom portion of your RFI ranges from every position.

But also see how they react to 4bets. Do they call a lot or is it a jam or fold spot for them?

Based on that you can do some tweaks to make your 4bet range a little more polar focusing on good blockers vs linear.

Thanks that's great advice

It's awesome to be moving up to games where people are 3betting light and you can start countering them with light 4bets.

There isn't a one size fits all approach. I would study charts with the response to 3bets from different positions and give yourself some way to randomize so you can have a mix of bluffy hands at low frequency balanced by your strong hands like AA, KK, AKs. Look at the preflop charts from GTO Wizard, I think they are free. A5s is the poster child 4bet bluff and can be used from any position. KQs, KJs, and KTs also tend to mix in calls/4bets a lot. AQs, AJs, ATs tend to be lower frequency 4bets and called a little more frequently. At around the LJ/HJ, AQo becomes a very good 4bet bluff as well. AQo should from fold to 3bet in EP, 4bet or fold mainly in MP, and 4bet or call in LP. Around CO/BU hands like AJo, KQo at some prequency, even KJo on the button.

Button vs SB, button vs BB, and SB vs BB are in a whole different universe and just need to be studied separately. A bunch of GTO 3bets and 4bets would like maniacal to the average love cash player.

Almost all of your 4bets are going to want to have an A or K in them, although around the button you starting getting some weird combos like J8s. When you are mega deep, you can also 4bet suited connectors at a very low frequency.

Vs the villains described, I don't think it is ever going to be a mistake to always 4bet AKo, AKs, AA, KK.

From the earlier positions we can fold a lot of the QJs, and worse out. ATs+, KTs generally continue well, while th QJs and JTs tend to be fairly weak. They are more frequently dominated or up against overpairs, and the cards that give them straights/straight draws are blocked by your opponents' hole cards I'm 3bet pots, and when they come out on the board they give them strong hands like top pair sets, two pair when we have a straight draw. Our the outs we need are blocked by our opponents' hole cards. 98 is a real problem child. 76s and 65s are a lot better continues as they don't interact as much with our opponent's range. But we can still mix call and fold with these hands a lot.

Lower pocket pairs like 99 and lower typically can mix call and fold, and very low frequency 4bet like 5-10% or even less. The deeper you, the more PPs and suited connectors you can call.