CO位河牌彩虹跟注（CO River Peel Rainbow）
In the Cutoff position, when the flop is a rainbow three different suits, a player chooses to call in order to see the river cheaply.
Term Composition
- CO: Short for Cutoff, the position to the right of the button, a late position with positional advantage.
- River: The final community card.
- Peel: Originally meaning "to peel off," in poker it often refers to calling on the flop to see the next community card (usually the turn), but here it extends to calling all the way to the river.
- Rainbow: A flop with three cards of different suits, so no flush draw is possible.
Strategic Meaning
This term describes a specific scenario: a player in the CO position, after a rainbow flop (no flush draw), decides to call (rather than raise or fold), aiming to use positional advantage to see the turn and river at a low cost, hoping to improve hand strength (e.g., hitting top pair, a straight draw, etc.). Since the flop is rainbow, flush draws are eliminated, so the opponent's range is more weighted toward made hands or straight draws. The CO position acts after the flop, relatively late, gaining more information, making it suitable for this "peel" strategy.
Notes
- This term is not a globally standard term; it is more of a description of a specific play among players.
- In practice, calling down to the river requires evaluating pot odds, implied odds, and opponent range.
- A rainbow flop typically indicates a dry board, but if straight draws exist (e.g., a flop of J-T-9 rainbow), caution is still needed.
Typical Example
Assume a player in the CO holds 8♥9♥, and the flop is J♠T♣2♦ (rainbow). The player may consider calling because there is a chance to hit a straight (Q or 7) on the turn or river. If the turn brings 7♣, the player makes the straight and can bet aggressively.