nl50 bet or check

You’ve just hit the second nuts (a set of eights) on a coordinated board of 2♠ 5♣ 7♦ 8♣. The board has numerous straight and flush draw possibilities, so you want to extract value from those draws while denying equity to hands like overcards with clubs or straight draws (e.g., 6x or 9x). Given the multiway pot and the likelihood that at least one opponent has a draw or a weaker made hand, betting aggressively ensures you're maximizing value while denying your opponents cheap equity.

The second nuts ?

Its a good hand to check as a default as you block 1 pair calls and its going to be difficult to get 3 streets from worse now.

Looking at both players stack size though, i'm assuming they are fish, I would play a small/mid bet if they are on the looser/passive side, you are unlikely to get punished for it as everyone is way more straightforward in MW pots.

I second that. You don't want to go crazy here, just bet B40-50 here, FDs have 8 outs against you (2♠ will give you a boat). If you get raised, go AI against the shorty and probably call the other guy, trying to hit the boat.

i feel a lot of weak draws are in both villains' ranges and checking almost ensures letting them get to showdown.

is there any argument to a bet that extracts value from/protects against a myriad of pair + straight draw or pair + flush draw holdings?

Just checked this is solver, though it's a simplified solution for 1vs1 (SB vs BB).

Flop is a 50/50 B33, which is what you did.

Turn is a 50/50 B50 with 8♣ and your combo is more like 68% of the time B50. Villain is supposed to raise here ~19% of the time, whereas many of those raises are pair+GS bluffs. This is ofc a theory, we would have to nodelock plenty of those unlikely movements to get the actual picture, but even against a big raise solver mostly wants to 3b/jam here with 8♣ and mostly calls with your combo (apparently 8♣ blocks plenty of combo draws).

But then you have to fold on blank rivers, which sucks.

Against two players, situation gets more complicated as the chance for a bluff raise decreases significantly. Any raise is gonna be most likely at least a straight or a flush or a very good combo draw. However, equity denial aspect cannot be ignored here too, as literally half of the deck can easily kill your hand or kill the action.

It's one of those situations that I absolutely hate:
- you want to bet, but you hate getting raised, though in this case you can still call the raise
- you want to check, however, giving a free card might be a death sentence

Pre sizing is bad. I would bet around 1/2 pot, check won't induce bets form weaker hand unless fish is bet happy.

They cumulatively have ~48-56% (up to 60%) flushes on the turn, depending on how loose BB and CO peel the flop.

According to my ranges, BB has 31% flushes and CO has 16%. Seems like a 1/3 to 1/2 pot bet is appropriate. We get value/protection and we also prevent getting bluffed on a weird run out if the turn checks through.

http://www.pokerstrategy.com
Board: 7s5s2c8s
Equity Win Tie
CO 16.92% 16.81% 0.10% { 99-22, A7s, A5s-A2s, K7s, K5s, K2s, Q7s, Q5s, Q2s, J7s, J5s, J2s, T7s, T5s, 95s+, 85s+, 76s, 64s+, 54s, KsQs, AsJs, KsJs, QsJs, AsTs, KsTs, QsTs, JsTs, As9s, Ks9s, Qs9s, Js9s, Ts9s, As8s, Ks8s, Qs8s, Js8s, Ts8s, As6s, Ks6s, Qs6s, Js6s, Ts6s, Ks4s, Qs4s, Js4s, Ks3s, Qs3s, Js3s, 4s3s, A5o-A2o, AsJd, AsJh, AsJc, AsTd, AsTh, AsTc, KsQd, KsQh, KsQc, KsJd, KsJh, KsJc }
SB 52.28% 52.28% 0.00% { 8d8h }
BB 30.80% 30.70% 0.10% { 99, 6d6s, 6h6s, 6s6c, A7s, A5s-A2s, 76s, KsQs, AsJs, KsJs, QsJs, AsTs, KsTs, QsTs, JsTs, As9s, Ks9s, Qs9s, Js9s, Ts9s, As8s, 9s8s, As6s, AdQs, AhQs, AsQd, AsQh, AsQc, AcQs, AsJd, AsJh, AsJc, AsTd, AsTh, AsTc }

i greatly appreciate your effort but the turn is 8♠

however this gem still stands and was the source of my discontent:

would you be willing to expand on this?

with poster/limper in CO and facing BB, my goal was to iso or take it down pre.

Pre flop size is good IMO when there's a limper
I like flop size vs 2 players, vs 1 I'd go bigger
I would go b33 on turn as well. A lot of fish like to donk flushes/flush draws either on flop or turn so it makes it slightly less likely you're beat although they can still have them. Betting big on turn I think you just own yourself by only getting called/raised by flushes but by going smaller you can get called by a random pair/6/FD.
If they do end up raising our turn bet then we're probably beat but I'd call vs short stack and then just hate my life vs the bigger stack and flip a coin depending if they raise All In or smaller

Yeah pre is fine. I thought for some reason this is nl100

pre is def fine