按钮位河牌下注-弃牌（彩虹面）（BTN River Bet-Fold Rainbow）

Term Explanation

BTN is the abbreviation for the Button position, referring to the player who acts last in each hand, providing positional advantage. River refers to the betting round after the fifth community card is dealt, i.e., the river round. Bet-Fold is a common play: a player first makes an active bet, but if facing a raise from an opponent, chooses to fold. This usually indicates that the player's hand is not strong enough, aiming to either take down the pot immediately or probe the opponent. Rainbow describes the suit distribution of the board, where all community cards are of different suits (e.g., flop three cards plus turn and river all different suits). Such a board typically reduces the likelihood of flush draws, but may increase the complexity of other draws.

In practice, the BTN using a bet-fold strategy on the river often occurs when holding a medium-strength made hand (e.g., one pair, two pair). The player believes an opponent may call with weaker hands, but if the opponent raises, it indicates their hand is stronger. The rainbow board further decreases the possibility of the opponent bluff-raising with a flush draw, so a raise here usually represents a real hand. This play must consider opponent tendencies, bet sizing, and historical hand contexts for a comprehensive judgment.

Notes

• This term is not an official fixed term; it is more of a nickname players use for a specific scenario.
• In practice, be cautious that opponents may still raise on a rainbow board with straight draws or overpairs.