按钮位河牌双枪彩虹面（BTN River Double Barrel Rainbow）
BTN River Double Barrel Rainbow
Refers to the strategy where, on the button, the player bets on a rainbow flop first barrel, then checks the turn, and then bets again on the river second barrel.
Glossary Entry
BTN River Double Barrel Rainbow is a composite poker term used to describe a specific betting pattern and board structure. It consists of the following parts:
- BTN: Button, the dealer position, one of the most advantageous positions in the game, allowing last action post-flop.
- River: The river round, the final community card street.
- Double Barrel: Typically refers to consecutive bets on two streets, but here it specifically means betting on the flop, then skipping the turn and betting again on the river.
- Rainbow: The three flop cards are all of different suits, eliminating any flush draw possibility.
Strategic Context
This line often occurs after a C-bet on the flop, when the turn card is unfavorable for one's range or unsuitable for continuing (e.g., an overcard or a card completing draws), so the player checks. On the river, if the hand strengthens or the opponent's fold frequency is perceived to be high, the player bets again, resulting in a two-barrel pattern (first barrel on the flop, second on the river). This play balances value bets and bluffs while leveraging the informational advantage of the button position.
Typical Scenarios
- Value Bet: Betting top pair on the flop, checking the turn for pot control, then betting again on a safe river card to extract thin value.
- Bluff: Bluffing on the flop with a draw or air, checking the turn to show weakness, then attacking again on the river when the opponent shows weakness.
The rainbow board reduces the possibility of flush draws, making the river bet more focused on attacking pairs, straights, and similar holdings. This term is often used in advanced strategy discussions, emphasizing the interplay of position and betting rhythm.