K7s SB on Q86r: Semi-Bluffing the Flush Draw

Hero
K♠7♠
Position
SB vs UTG+1
Pot
Single-Raised Pot
Flop
6♦ 8♥ Q♠

We turned a flush draw and used it to apply maximum pressure, though a slightly smaller sizing would better balance our range.

Flop Analysis

Standard check on a board that favors the preflop raiser's range; we have high card and a backdoor flush draw, looking to realize equity cheaply.

Flop Analysis

Raising here is a high-frequency GTO play that uses our King-high as a semi-bluff to fold out Villain's air and small pairs. **Ranges:** Villain's range is wide and contains many hands like As9s or Ad5d that must fold to a raise. By raising, we put pressure on their middle pocket pairs (77, 99) and overcards while retaining backdoor equity. **Blockers:** Our Ks is a crucial card, blocking Villain's strongest overcard continuations like AsKs or KhQd. This increases the likelihood that our semi-bluff generates immediate folds. **Math:** Facing a tiny 1BB bet, we are getting 6:1 on a call, but raising to 4BB allows us to take control of the pot and deny equity to Villain's 25% Ace-high holdings. --- > **Takeaway:** Use King-high backdoor draws to check-raise dry boards, putting pressure on the aggressor's wide range of overcards.

Turn Analysis

The turn gives us a flush draw, making this a prime candidate to continue our aggression, though the shove is slightly larger than necessary. **Sizing:** Shoving 14BB into a 13BB pot (108% pot) is slightly over-polarized. A medium sizing of ~8.5BB (66% pot) achieves the same fold equity against Villain's middle pairs while keeping us less committed if we are beat. **Ranges:** Villain's range is now condensed to hands that called the flop raise, such as top pairs (QJ, QT) and middle pairs (99, 77). Our shove targets these pairs, though we are rarely folding out a Queen. **Plan:** By betting, we maximize our fold equity while having a clean 20% equity with our flush draw if called. If we check, we risk Villain checking back and realizing their equity for free. --- > **Takeaway:** When you turn significant equity after a flop raise, continue the story, but use geometric sizing to keep Villain's range wide enough to fold.

Note: The overbet shove is slightly too large; a 60-70% pot sizing is preferred to balance your value and bluffs at this SPR.

Key Concepts

  • 3.6
  • Villain Strong Advantage
  • OOP
  • Dry Board
  • LEAN TOWARD CHECK