CO 20bb 全下或弃牌（CO 20bb Push Fold）

Overview

CO 20bb Push Fold is a common simplified strategy in Texas Hold'em, applicable when the stack depth is shallow (around 20 big blinds) and you are in the cutoff position, either in tournaments or cash games. The core of this strategy is to eliminate complex actions like raising and calling, leaving only two options: all-in (Push) or fold.

Application Scenarios

• Stack depth: Typically refers to effective stacks between 15-25 big blinds, with 20bb being a common reference point.
• Position: CO (Cutoff) is the first seat to the right of the dealer, offering a positional advantage preflop.
• Strategy logic: When stack depth is shallow, the pot odds after a raise are not significantly different from going all-in, so simplifying decisions can reduce errors.

Key Strategy Points

• Push range: Generally includes strong hands such as high pairs, Ace-high hands, suited connectors, etc. The exact range should be adjusted based on opponents and situation.
• Fold range: Weak hands like small pairs, low suited connectors, etc., are directly folded.
• Adjustment factors: Opponent fold equity, tendencies of players in the blinds, ICM pressure (in tournaments), etc., influence actual decisions.

Notes

• This strategy is an approximation, not strictly optimal. In real play, options like raising and calling should be considered, especially when opponent fold equity is extremely high or low.
• 20bb is an empirical value; different players may use different thresholds (e.g., 18-22bb).
• This term is commonly used in discussions of early tournament stages or preflop strategies in cash games.