Short-stacked heads-up play collapses to one decision: jam or fold. These are the equilibrium ranges for that decision at each common stack depth: the small blind's open-jamming range, and the big blind's calling range against it.
Solving this depth… the first request at a new stack depth runs the solver, so it can take a few seconds.
Practise ICM-adjusted push/fold until it’s automatic, scored, no sign-in.
Practise the ICM push/fold drillEach grid is the standard 13×13 hand-class layout: pairs on the diagonal, suited hands above it, offsuit hands below. A shaded cell is in the range; the darker the shade, the more often equilibrium takes that action with it. Cells that stay clear are folds.
The ranges are solved rather than memorised from a published table, so they move with the structure. Add a big-blind ante and both ranges widen at ten big blinds, the calling range most of all, because there is more dead money to win. Shallower stacks widen the jamming range too: with five big blinds the small blind is jamming most of the deck.
Charts are a starting point, not a strategy. Against an opponent who calls far too tight you should jam wider than this; against a station you should tighten. Drill the marginal spots in the ranked Trainer to learn where the boundaries actually sit.
Deeper than these stacks, the decision is an open-raise rather than a jam: the starting hands chart covers opening ranges by position.
Read the lessonThe ranked Trainer turns this into a skill: equity, pot odds, ICM and push/fold puzzles that adapt to your rating, with a 14-day free trial.
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