I led flop, checked turn and river to Induce the bluff. Once he did his sizing was too big to call against an unknown player. Not a lot of big river bluffs at this stake.

But he showed it

You check to induce the bluff and then he did it. Y’all also have to put them on a range. What hand did he have? What hand does he have that beat you there?

He banked a set of threes on the river? If he did that and then over shoves the river, I mean, I guess he deserves to win the pot then I would never fold there.

If you are just gonna flat pre-just check call all the way down if he’s bluffing that’s what you’re there for with his queen

They river jam so infrequently at this stake that my default strategy has shifted to its not a bluff until they show me that they will bluff the river for a big size

I said this wrong unopened to 15 pre in the SB

The preflip action is incorrect?

Yes I opened to 15 after limpers