BB 3-Bet vs UTG 4-Bet
UTG 4-bet to 19.8 bb. Jam or call with the top of your 3-bet range; fold the bluffs.
Hands at a glance
All-in (68% of hands)
Always: AA, AKs, KK. Sometimes: A5s (20%), AKo (60%), QQ (40%).
Call (21% of hands)
Sometimes: AKo (40%), QQ (60%), JJ (50%).
Each square is a starting hand: pairs on the diagonal, suited hands above it, offsuit below. A square split in two colors is a mix: play it each way that often.
How to play it
You 3-bet an Under the Gun open from the Big Blind, and Under the Gun 4-bets. Your 3-betting range here is 3% of all starting hands (the colored squares). Go all-in with 68% of it, call 21% and fold the other 11%.
Against an Under the Gun open your 3-bet range is mostly strong hands, so most of it continues against a 4-bet.
Facing the same 4-bet from the UTG: the HJ folds 12%, the CO folds 12%, the BTN folds 15%, the SB folds 28%.
Related charts: BB vs UTG Open, UTG Open vs BB 3-Bet, UTG Open Range.