[45suited]

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I dunno...I think this is where ICM becomes very important and where the correct play shocks your intuition. There are some stack distributions where doubling up is clearly correct and some where playing for third is clearly correct. This, in mind, leans toward the latter.

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But we're not even talking about responding to a raise. Just an UTG limp. And the shortstack is not SO short that he is no threat to catch up with you.

So, say you call (now we're down to 1570) and fold to an over on the flop. Shorty doubles up once, he's got ~1340 chips. Our lead on him is almost gone.

By pushing, you're playing for 1st AND simultaneously playing to ITM. I'd never forgive myself if I played this hand weakly and ended up not finishing ITM.