BTN Cold 4-Bet vs HJ Open + CO 3-Bet

HJ opens, CO 3-bets, and the action is on you in BTN. Cold 4-bet or fold? Many hands you would 3-bet against a single open have to fold here.

Action flow: UTG · Fold → HJ · Open → CO · 3-Bet → BTN · You Act

Solver strategy in this spot

Hands with a percentage are mixed; anything not listed folds (or never reaches this spot).

Cold-4-BetAA, KK, QQ, 88 13%, 77 8%, 66 17%, AKs, AQs 13%, A5s 13%, KQs, AKo