UTG+1河牌圈下注-弃牌（彩虹面）（UTG+1 River Bet-Fold Rainbow）

Term Analysis

Position Meaning

UTG+1 (Under the Gun +1) is the position immediately after the gun position (UTG) and belongs to early position. Players in this position act first preflop and typically need to enter pots with a tighter range. Due to positional disadvantage postflop, actions must be more cautious.

Rainbow Board (Rainbow)

Refers to a flop where all three community cards are of different suits, meaning no flush draw is possible. This information affects subsequent strategy: on a rainbow board, flush draws do not exist, so the opponent's draw range is more skewed toward straight draws or pair draws.

River Bet-Fold (Bet-Fold)

• Bet: Actively betting on the river, usually indicating a strong hand (such as top pair or better), or as a bluff (though bluffing frequency is lower on rainbow boards).
• Fold: If the opponent raises, choose to fold. Because a river raise typically represents extreme hand strength (such as a set, straight, etc.), calling could result in significant losses.

Strategy Application Scenarios

This strategy is typically used when the opponent's range is wide and the river has not improved their draws. For example:

• UTG+1 raises preflop, continues betting on the flop, checks on the turn (to control the pot), and bets on the river.
• If the opponent calls on the flop and turn, then raises on the river, it usually means their hand strength exceeds your range, making a fold a reasonable choice.

Notes

• This strategy is not suitable for heads-up pots or against extremely loose opponents.
• Rainbow boards reduce the possibility of flushes, but straight draws still exist and should be evaluated based on the board structure.
• Bet sizing should be reasonable to avoid offering the opponent favorable odds.