12bb push/fold chart with a 1bb ante
Three quarters of hands still jam at twelve big blinds once there is an ante, and the big blind is calling almost exactly half. That symmetry is worth noticing: when the caller is coming along half the time, 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 75% of hands.
Big blind calls 52% of hands.
Loading the solved ranges…
These ranges are solved here rather than copied from a published chart. The solver runs an iterative approximation, so treat the overall jamming frequency as reliable and the exact borderline cells as the least certain part of the grid. Hands on the edge of the range are close to break-even either way, which is why they are also the ones the solver is least sure about.
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.