A♦5♦ BTN vs BB, turn on Q♣ 8♦ 4♠ 2♠, 75 bb
The spot
- You: BTN
- Opponent: BB
- Your hand: A♦5♦
- Board: Q♣ 8♦ 4♠ 2♠
- Effective stack: 75 bb
- Pot: 16 bb
Hero can leverage blocker distribution for polarized pressure.
What action maximizes EV in this polarized node?
See the answer
Best play: Bet 40% pot
Why
Turn (Q♣ 8♦ 4♠ | 2♠): checked to the BTN, the BB range is capped to weak Q-x, second pairs and busted air after a passive line. Hero holds A♦5♦ = ace-high with the nut-diamond blocker and a backdoor wheel/diamond runout, no made pair yet. The 40% small bet is the merged/thin pressure size: it denies equity to the BB's overcards and floats while keeping the pot small, since hero's hand is too weak to overbet for value and the small size taxes the capped range cheaply.
Key idea
On the turn vs a capped range, a small merged bet taxes weak made hands and draws cheaply when your own hand is too weak to overbet.
Common mistake
Overbetting ace-high here as a 'bluff' — with no fold-equity edge on a dry turn the BB just continues with all its Q-x, and the small merged size is more efficient.