AK is SB

[mack848]

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Did not want to risk checking through the turn and wanted give the button a chance to raise me so I could 3-bet.

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Once you cold call on the flop, I think that everyone knows you have a big Ace. You're not going to do that with an underpiar after a bet, call and a raise. I don't see anyone raising your turn bet without AK too.

Given that you are unlikely to get multiple bets in on the turn, and that 3 players have already bet or raised on the flop, I 3-bet there and then and expect them to call.