15bb push/fold chart with a 1bb ante
With an ante, fifteen big blinds still jams more than half the deck, against 46% without one, and slightly more than the ante-free chart jams at twelve. The conventional wisdom that push/fold stops working around fifteen big blinds is really a statement about ante-free play. With an ante in the pot, the jam stays live noticeably deeper, and treating fifteen as a hard ceiling costs you.
Small blind jams 54.5% of hands.
Big blind calls 39.8% of hands.
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These ranges are solved here rather than copied from a published chart. The solver uses the exact all-in equity of every pair of hands rather than a simulation, and the solved ranges are checked so that neither player could gain as much as a hundredth of a big blind by playing any single hand differently. Hands on the edge of a range are close to break-even either way, so they are where charts from different solvers most often disagree, and where a small difference costs least.
See every depth at once on the full push/fold chart tool, or drill the same decision with tournament ICM pressure applied in the ICM push/fold drill.