5/5 NL hand in SoCal

OP can speak for themself; but what I took them to mean when they said "Essentially this is a math problem" was that it was the same old end-of-action spot where we compute how much equity we need to call (i.e. how often we need to win to break even) and make a reasonable guess as to our actual equity. Required equity is given by RE = B/(P +2B), where B is the bet we are facing and P is the size of the pot apart from that bet. We should be figuring this out at the table again and again and again, and it should be second nature to us.

If it isn't second nature to you, well, here is an opportunity for growth.

This is what I meant by it being a math problem. We need more than 38% equity to profit on a call. The only question here is trying to determine what range we're up against. Equity vs hands where our pair outs are not live is somewhere around 35-36%.

This is more likely TT-QQ, because he probably doesn't shove AA/KK. Actually, I wouldn't just shove any over pair or strong draw here, as he could just bet/call the flop and shove the turn. He can't have the flush draw with AK or AQ, but you also block most suited broadway draws he could have. Seems unlikely he has some combo draw with low cards. The most likely draw is Ahxh.

Would call based on description, as he might be spazzing or not knowing standard ranges 3!ing a mid pp or suited connector from the BB and possibly could be shoving without an overpair or strong draw. Also, when someone makes a weird play like this, there is a possibility he isn't as strong as he represents.

That's basically what I took from your OP - it's a math problem, but one which requires us to determine what V's range is, before we can do any calcs.

Going back to your description of V, and of the action, I think there are key facts at play - V is probably in spaz mode, he 3B squeezed over a UTG1 raise from the BB, and he insta-ripped it on this two-tone middling board. Ordinarily, I'd expect that to be big over-pairs, huge draws, and sometimes AKhh.

With the K and Q of h in your hand, it seems less likely he's ripping it in with AJhh, AThh, A5hh, though A5hh might make some sense, with the inside straight draw.

Because he's in spaz mode, I'd be putting all the 99+ in his range, maybe 88+, the nut flush draws, and possibly some random nonsense, though I'm not sure what those hands would be. Maybe he gets here with 77, 55, A4hh, and possibly even 75hh.

I think your pair outs are live, and if we weight his range more towards over-pairs, and less towards nut flush draws, I would guess you have enough equity to call.

Looking forward to the reveal on this one.

I fold preflop. At 1/2 in my cardroom, when the BB 3bets 4x, he has AQ+, TT+, and hero is a 32 percent dog. Most action players make their big semi-bluffs in position, not from the blinds.

Folding pre is definitely reasonable as well. I just know my implied odds are good enough with this hand IP at this depth esp given the spaz factor.

Hand result:

I decided on a fold because I see this move a lot when I play live, basically my opponent does not want to have any difficult decisions at any point. Typically players that make this allin bet on the wet board oop will have AA or KK. Sometimes you will even see players go allin before they even see the flop. 99% of the time this is just AA. We will profit amazingly well against this play because we can just call when we have required equity and fold otherwise. Implied odds are fantastic if we flop 2p+.

After I folded my hand face up I asked my opponent to show and he rolls over black AA which is pretty much what I expected.

I agree with adonson, the cold 4bet range of a 5/5 player with a shallow stack is even tighter than what was listed. I fold to the 4bet, and I fold as played (without ever showing my hand).

Out of curiosity, do you think V would also do this with 99+ and / or his nut-flush draws?

I've seen guys do this with AA, but I feel like those same guys do this with any over-pair to the board on flops like this, and the higher their pair, the more often they just jam with it. If he's doing this with 99-JJ, you're a slight favorite.

In your spot, I'd want more history on V. Specifically, I'd want to know if he also plays his nut flush draws this way. If he plays all his over-pairs this way, but not his nut flush draws, I could see flicking in the call.

If he's only playing AA/KK and his nut flush draws this way, then it's just an obvious fold. That would be my gut reaction here - this is always AA/KK or the nut flush draw.

Like I said in my first post above, I prefer to just make exploitative folds in spots like this, rather than trying to figure out what V's spaz-jam range looks like, and making an ambitious call.

It's not a 4bet its just a 3bet squeeze over an iso and a call