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Heads-Up Push/Fold Chart 12bb (Nash)

Heads-up at 12 big blinds: the Nash push/fold solution for both sides. The small blind jams 63% and the big blind calls 33% — both shown as full 13×13 charts with the expected value of every hand in big blinds, including the hands that are close to a coin flip.

Small blind — jamming range — 63.0%

JamMixedFold

Big blind — calling range — 32.8%

CallMixedFold

Expected value per hand (bb)

At twelve blinds the small blind jams 63% and the big blind calls 33%. The shoving range has finally started to shrink meaningfully — down from 69% at 10bb — because being called now costs 12bb instead of 10bb for the same 1.5bb prize.

This is roughly where a raise-fold strategy becomes genuinely better than pure jamming heads-up. The chart still tells you something essential: the hands below the jamming line are the ones you should never get all in with preflop, whatever line you take.

The big blind's calling range at 33% is now clearly value-weighted. Bluff-catching a 12bb shove with a hand like J9o is a losing proposition; hands that call profitably are pairs, aces, and the better kings.

FAQ

What is the correct heads-up shoving range at 12bb?

The small blind jams about 63% at 12bb; the full Nash range is on this page with the EV of every hand. Hands showing between +0.00 and +0.03bb are close to indifferent — shoving or folding them costs almost nothing in the long run.

Do these heads-up charts assume the big blind plays correctly?

Yes — both ranges are the equilibrium against each other (the big blind calls 33% here). If your opponent calls too wide, tighten your jams to value; if they fold too much, widen toward any two cards. The equilibrium is the baseline you deviate from, not a target to hit against a bad player.

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