河牌彩虹漂浮（River Float on Rainbow Board）

Term Introduction

River Float on Rainbow Board is an advanced bluffing strategy that combines the concepts of "Float" and "Rainbow Board." Floating refers to a player calling on the flop or turn with a weak hand, intending to steal the pot on a later street. A Rainbow Board means the flop contains three cards of different suits, with no flush draw possible.

Strategy Principle

On a rainbow board, since there is no flush draw, the opponent's range leans more toward made hands or high cards. When the river card is dealt, if the player has been passive on earlier streets (e.g., calling), a river bet can represent having hit a strong hand (such as top pair or a straight). This strategy capitalizes on the opponent's fear of a potential strong hand, forcing them to fold.

Applicable Scenarios

• The opponent is out of position, and their flop bet is small or their range is wide.
• The river card is a high card or a card that connects with the board structure (e.g., completing a straight draw).
• The opponent is a tight-aggressive player who tends to fold medium-strength made hands on the river.

Notes

• You need to accurately assess the opponent's fold equity; this strategy works poorly against calling stations.
• On a rainbow board, opponents are more likely to hold top pair or middle pair, so the river bet must be large enough (often overbet) to apply pressure.
• Avoid using this strategy too frequently, as the opponent may adjust.

Typical Example

Flop: K♠ 7♣ 2♦ (rainbow). Turn: 5♥. River: A♦. The player calls on the flop with 8♠ 6♠, check-calls on the turn, then bets on the river representing an A or a straight. The opponent, holding KQ, may fold.