Part: Part Eight - Making Moves

The double-barrel

Flop
Heads-upPot 2,600 (6.5 BB)Q♣7♦3♠COA♥K♥● 16,000 (40 BB)YOUovercards + backdoorsBB● 16,000 (40 BB)Big blindchecksD

You opened and the big blind called. Flop Q♣ 7♦ 3♠ - you have A♥K♥ (overcards, backdoors). He checks.

A dry board, you have the lead and overcards. Best?

WhyContinuation-bet. A standard c-bet on a dry board with overcards and backdoor equity wins often and sets up a second barrel on the right card.
What happensYou bet 1,400; the big blind calls.  Pot: 5,400 (13.5 BB).
Turn
Heads-upPot 5,400 (13.5 BB)Q♣7♦3♠A♥COA♥K♥● 16,000 (40 BB)YOUa barreling card arrivesBB● 16,000 (40 BB)Big blindchecksD

Turn A♥ - you pair your ace, and it's a card that scares his range. He checks.

The ace both improves you and threatens his hand. Best?

WhyDouble-barrel. The ace favors your range (you'd often hold one) and you actually paired it for top pair, top kicker. Bet to fold out his weaker pairs and draws and to get value - the perfect barreling card.
What happensYou bet 3,400; he folds.  The barrel takes it (with a real hand behind it).
You fired the flop, then barreled the turn when a card favoring your range arrived - and it improved you, too. Scare cards that hit your range are the cue to keep telling the story.

Double-barrel on turn cards that favor your range - they make the bluff credible and fold out the marginal hands that called the flop.