Poker Term
按钮位干燥牌面河牌阻挡下注（BTN River Block Bet Dry）
On the river, the button player makes a small bet on a dry board, aiming to prevent opponent bluffs or force medium-strength hands to fold.
Concept
BTN River Block Bet Dry is a betting strategy in Texas Hold'em, specifically referring to a small bet made by the Button (BTN) player on the river (River) when facing a dry board (Dry Board). A dry board means the community cards lack drawing possibilities, e.g., a rainbow board with low straight potential.
Strategic Intent
The main purpose of this bet is to "block":
- Prevent opponent bluffs: If the opponent holds air on the river, a small bet may induce them to give up bluffing, fearing a call.
- Control pot size: Avoid being bluffed by a large opponent bet, seeing showdown at a lower cost.
- Extract value: Get thin value from marginal hands the opponent might fold (e.g., one pair).
Typical Scenarios
- Board structure: e.g., flop K♠7♣2♦, turn 3♥, river 9♠. No flush or straight possibilities.
- Hand range: BTN holds a medium-strength hand, such as top pair weak kicker or middle pair, which is difficult to handle against a large bet.
- Action line: BTN may check or bet on the flop and turn, then on the river chooses to bet about 20-30% of the pot.
Differences from Standard Bets
- Standard value bet: Aims to get maximum value from weaker hands, usually a larger bet (50-70% pot).
- Block bet: Sacrifices some value for security against opponent's large bluffs.
- Bluff bet: Intends to force strong hands to fold, whereas a block bet typically does not expect strong hands to fold.