Push/Fold
Short-stack strategy: all-in or fold only
Definition
Push/fold is the optimal strategy when your stack is short, generally between 0 and 15–20 big blinds. With so few chips, limping and calling are no longer mathematically justified: the only correct decision is either to push all-in, or to fold directly. Nash push/fold charts indicate exactly which hands to push based on your stack (in bb), your position (BTN, SB, etc.) and the number of active players. These charts are computed to be mathematically unexploitable — deviating from these ranges creates EV leaks that competent opponents can exploit. In Spin & Go and the late stages of MTTs, mastering push/fold charts is crucial. Blinds rise fast and most important decisions happen under time pressure. Memorizing your push/fold charts and playing them automatically is a major competitive edge.
At 10bb on the BTN heads-up, your push range is about 60% according to Nash. At 15bb 3-handed on the BTN, that range is ~35–40%. At 5bb, you push almost all your hands regardless of position because the blinds force you to act.