Can hero possibly call this 33% pot bet with an overpair in a 4-way pot?

Fold, not close.

Not even close under the reasoning that the turn changed nothing in terms of the nuts, and if hero/cutoff/button had anything nutty on the flop there's some chance they would have bet? Therefore the BB is massively incentivized to bluff, right? He's only getting called if someone protected their checking range on the flop with something like two pair plus, which is somewhat unlikely at recreational low stakes?

All he did was check to the raiser which some players do with full range.

To answer your question yes it’s a good bluff spot for him but there’s not much we can do about it with just a gutter and aces.

Edit: Just saw the spr, sorry. I think maybe we should just jam flop. Turn spot I’m not sure about.

Sure, he's going to check to the raiser with his range most of the time - so he's uncapped. But for sure it's a good bluff spot given the weakness shown on the flop.

Sorry I actually made a mistake in the initial post; hero has over $2000 in his starting stack. As posted yes hero is probably jamming flop given the low SPR. But what about when he's deep stacked? Must be suicidal to jam into three low-stakes action junkies who are going to be all over this board?

Turn was indeed a tough spot. I figured if button has anything, he would have bet the flop - which only leaves the cutoff and BB to be concerned about. But you just know one of them can be in there with some random two pair and flush draw, right? And what if I call the BB's jam and then get raised? Disasterville.

just shove the flop given the spr

Playing this deep you have $1770 remaining and with a pot of $905 an SPR of about 2 to 1. With three opponents and the flop completely missing most of your range it's a check and fold all day. Maybe it gets checked through and you hit your gut shot clean but even then you would have a flush and better straights to fade.

Yes as posted with $270 remaining a $905 pot it's shove and pray.

Sure, agreed - but what about when the flop checks through and the BB jams the turn for $320?

You did make a good case in your other posts that there is a reasonable possibility BB is bluffing and the other two opponents may by weak since they didn't bet in position with their SPRs both under one.

So if the flop gets checked through (and once again it shouldn't have) and the super blank turn card that comes I'd call if you have the very low SPR. If you are deep the jammer has a very small SPR and the two other opponents have an SPR less than one.

With a deep stack that covers the remaining medium stacks I can see a case for continuing the more I think about it. If I continued I'd jam. That would probably force weak one pair hands behind you out and you want them out with the over pair and not anything else other than the gut shot. If they have better than that the money is probably going in anyway but as mentioned it's unlikely they have much better given no flop bet in position.

Sure, this sounds pretty smart to me and I agree.

As played, I tanked and folded. The cutoff also folded, and the button tank-folded.

The BB showed Q♦J♥5♥5♣ - so he was making a move with the blockers. Clearly a terrible call preflop, but as indicated I felt I couldn't call with two players behind. It transpired that the button also had an overpair.

So - is it a good bluff by the button? It's ballsy, but I don't think it can be considered "good" exactly - too much risk of getting called given the low SPR, right?

Is it a good fold by hero? I think so and hope so, but it was painful to see the BB's hand!

It's a terrible bluff, and a standard fold.

Should be shoving the flop esp with the nut gutter ball

N.b. I made a mistake in the initial post; I actually had about a $2000 stack, so the effective stack is ~$570. I have a hard time believing that I can shove this flop profitably into three players (hence the check) - but maybe.

Thanks, I thought so too on both counts.

Rainbow board i.e. at least 1 bdfd, you can probably get it in. With a fd you don't have, and a bdfd, it's probably a check. With no bdfd it's almost certainly bad to get it in. Flush draws just have so much equity versus you here. I'd guess you're like 55% only against AKT8 with clubs or something.

Sure thing, agreed.

You can play around with PPT and figure out the math on it but pretty sure its a jam

Hmm okay, seems peeps on the thread are arguing both sides in this hand regarding whether or not to rip the flop. I'm leaning towards check/fold myself but open to explanations for otherwise. Do you have PPT to check it?