25bb push/fold chart with a 1bb ante
Even at twenty-five big blinds the ante keeps 42% of hands in the jamming range, more than the ante-free chart at twenty. As with the ante-free chart at this depth, treat it as a boundary marker rather than a recommendation: a strategy with a smaller raise available does better. What the page is really showing is how far the ante pushes the boundary out.
Small blind jams 42.1% of hands.
Big blind calls 28% 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.