The widest flat range on the chart so far. Deep and in position, the button monetizes every mistake on every street.
The 3-bet range condenses toward hands that welcome a giant pot; almost everything else that plays well flats. Bloated pots with dominated hands are how 500bb stacks vanish.
Absolute position against the tightest opening range. The button flats liberally here — every implied-odds hand appreciates when the opener's range is strong enough to pay off.
Assumes a ~4bb open; 3-bet to ~3x the open in position, ~4x from the blinds — larger as stacks deepen.