12bb push/fold chart with a 1bb ante
With an ante, 57% of hands still jam at twelve big blinds, and the big blind is calling just under half. Compare that with the ante-free chart, where the big blind calls about a third: when the caller is coming along this often, the fold equity that justifies the widest shoves has thinned considerably, and the range is held up increasingly by raw equity instead.
Small blind jams 57.4% of hands.
Big blind calls 46.7% of hands.
Loading the solved ranges…
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.