Flop Analysis
Jamming flop with just ace-high and a backdoor flush draw into a checked range at 0.8 SPR wastes our range advantage; this combo should either check back or use a small stab, not shove. **Ranges:** After the cold 4-bet and call, BB is heavily weighted to QQ+/AK, while our range contains more suited broadways and some traps, giving us higher nut coverage but against a very strong, condensed range. Our specific hand is at the very bottom (high card losing to any pair) and mainly wants to realize equity rather than force folds from overpairs. **SPR:** With pot ~57BB and ~46BB behind, stacks are shallow but not committed; we still have fold equity, yet when we shove, BB’s overpair-heavy range is supposed to call a lot, so our fold equity is low and our ~25% equity versus calls is insufficient. A small bet or check keeps the pot manageable and lets our equity realize on good turns. **Sizing:** Solver prefers check or a small ~25% pot bet with this combo; the all-in line exists but is clearly lower EV because it turns a weak but live hand into a bluff that mostly gets called by better and folds out exactly the hands we already beat (air and some underpairs).
Note: Shoving flop with ace-high + backdoor flush draw versus a strong cold 4-bet range is a big overbluff; checking or using a small bet is much higher EV.