I am answering in a vacuum here since you have not given any flavor as to how the small blind has been playing. Is he a maniac? Is he a rock? Is he a solid player who bets what he has? Is he on tilt? So for argument sake I’ll assume he is a solid ABC player.

I think you original raise is mildly heavy. I agree that I would prefer 2250. That said, you should be raising the same every time so you don’t leak info. You don’t want to 2.0 every time you have a monster and 2.4 every time you have a solid but not amazing holding. That is too exploitable. So I’d say pick a formula for what you raise and stick with it. Whether it is 2.0, 2.25, 2.4 pick one and stick with it.

As for call or fold to his shove, I would fold. You are both playing pretty similar stacks. I don’t think he should be taking this line with a worse pair than 6s. So at best I think you are dominated or flipping. With 24 big blinds I don’t really love the idea of going to the mats for more than 80% of my chip stack with 6s.

ICMizer says you call with 88+, AQs, AQo.

I think I might play slightly tighter than GTO but not significantly so. 88 is very marginally +EV (+0.20). I don’t really love putting my foot on the gas pedal with such a razor thin +EV. 99 I guess I consider it, don’t love it, but probably/possibly go with it depending on how my opponent has been playing. TT is a clear call, as is better. 88 I think I pass, 99 I hold my nose and reluctantly call, TT+ it’s damn the torpedos, full speed ahead.

Now let’s say villain only had half the chip stack he actually had. If he only had 10,325 chips and shoved then I think you have a case to make the call (but just barely). ICMizer says under this scenario you call with 66+, ATs, AJo. Calling with your 6s is just barely profitable (+0.11) but it is profitable. 

Foucault said
The starting point for answering a question like this has got to be an equity calculator. Look at a few possible ranges for the SB and see how you’re doing against an optimistic range, a pessimistic range, and whatever you consider the most likely range. There’s just no reason to have a conversation about this without looking at numbers.

More than that, though, you should anticipate this possibility before you open. That doesn’t necessarily mean you shouldn’t open, but you should know what you’re going to do if a 20bb SB reshoves, and if it’s going to be a tough spot, then you might consider other options: a smaller open, a shove, maybe even a limp.

RP,

That ICMizer result you’re citing sounds wrong to me. I’d be pretty happy to call, say, AJ here. Are you treating this as a final table? Or a SNG? Unless I’m missing something, OP didn’t say anything about being in a spot where ICM was terribly relevant, and I can’t imagine that AJ is a cEV fold.  

So it sounds like I am misusing ICMizer. It sounds like you are saying that ICMizer is something you use for a) the final table of a tournament, or b) a 9-player sit n go, but it is not something you use in early and mid stages of a MTT even if people are making push/shove decisions. My guess is that ICMizer for a final table will have you calling with a little bit of a tighter range than you would do in early/mid stages of a tournament.

This brings me to this question, Andrew. What software do you suggest using for push/shove/call ranges for the stages of a tournament prior to the final table?