10bb push/fold chart with a 1bb ante
The reference depth with the ante switched on, and the contrast with the 10bb chart is the point, though not in the way most players expect. The jamming range widens only a little, 61% of hands rather than 58%, but the big blind's calling range goes from 37% to 54%. If you learned a ten big blind range from an ante-free chart and you are playing a late-stage level with an ante, your shoves are roughly right and your calls from the big blind are far too tight. That is the most common version of the ante leak.
Small blind jams 61.2% of hands.
Big blind calls 54.2% 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.