The short-stack jam-or-fold decision, solved. At 20 big blinds effective, these are the hands to move all-in with when the pot is unopened — the Nash-equilibrium shoving range.
Jam: 64 of 169 hands at 20bb
Push/fold is the part of no-limit hold'em that is effectively solved: at short stacks there is no room to play post-flop, so every hand is a clean all-in-or-fold. This chart is the unexploitable shove range from an unopened pot at 20bb effective — jam the green hands, fold the rest. Shallower stacks jam wider; as you get deeper, the range tightens toward premium holdings.