While we have a range advantage, our specific hand lacks the equity or blockers to sustain a multi-street bluff after being 3-bet.
Flop Analysis
Checking back is preferred. While we have the range advantage, our specific hand has a backdoor flush draw and enough high-card value to realize equity by checking.
Note: Betting here is unnecessary; checking back allows us to realize equity with our backdoor draws and high-card strength.
Turn Analysis
Double barreling here is a significant error. We have almost no equity, and the 6d is a card that connects with SB's 3-betting range (like 77, T9s, or diamonds).
**Ranges:** SB's range is condensed after calling the flop, containing many Ax and mid-pairs. We have very few natural bluffs here, and KJs without a draw is the bottom of our range.
**Board:** The 6d brings straight possibilities (75, T7) and a flush draw. We don't block the diamonds or the straights, making this a poor candidate to continue aggression.
**Math:** With only 6.7% equity, we are essentially clicking buttons. We need massive fold equity to make this profitable, but SB is unlikely to fold an Ace or a strong draw.
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> **Takeaway:** Don't turn total air into a multi-street bluff on boards that connect with the caller's range.
Note: This is a low-equity bluff on a card that improves the opponent's calling range; checking is much higher EV.