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something I don't get is how does it become a shove from a ch/fold if I bet more on flop ?
Could you explain the reasoning plz

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u bet $20 on the flop he calls, pot is now $64. you bet $48 he calls pot is $160. now he has $119 left. he's getting better odds to call a river shove w/ worse hands and you got more money in while you were ahead.