按钮位河牌加注-弃牌动态（BTN River Raise-Fold Dynamic）

Term Explanation

BTN River Raise-Fold Dynamic describes the behavioral tendency of the Button (BTN) player to fold when facing a re-raise (e.g., 3-bet) after making a raise on the river. This concept is particularly important in GTO (Game Theory Optimal) strategy for optimizing the balance of the river raising range.

Strategic Background

On the river, the Button as the late-position player has an information advantage and often uses raises to extract value or bluff. However, if the raising range contains too many bluffs, opponents may exploit this by re-raising. Therefore, GTO strategy requires that the Button's raising range includes enough value hands to make re-raises by opponents unprofitable. When the Button raises and faces a re-raise, value hands will continue (by calling or re-raising) while bluffs will fold, forming the raise-fold dynamic.

Practical Application

• Balancing the raising range: The Button must ensure an appropriate ratio of value hands to bluffs in the river raising range, typically about 70% value and 30% bluffs, to prevent excessive exploitation.
• Exploiting opponent weaknesses: If opponents rarely re-raise river raises, the Button can increase bluff-raise frequency; conversely, if opponents frequently re-raise, the Button should reduce bluffs and strengthen value raises.
• Example: Assume a rainbow board. The Button holds an uncompleted draw (e.g., A-high busted flush draw). After betting the river and facing a check-raise from the opponent, neither calling nor re-raising is necessary; the typical choice is to fold. With top two pair, however, the Button continues.

Notes

This dynamic does not exist in isolation; it must be adjusted according to opponent style, bet sizing, board texture, and other factors. In low-stakes games, players may not follow GTO strategy, making exploitative strategies more effective than balanced ones.