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

HJ opens, CO 3-bets, and the action is on you in SB. 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 · Fold → SB · You Act

Solver strategy in this spot

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

Cold-4-Bet	AA, KK, QQ, JJ 6%, 88 9%, 77 14%, 66 21%, 55 7%, AKs, AQs 9%, A5s 11%, KQs, AKo