关煞位翻牌前对子下注后弃牌（CO Preflop Bet-Fold Paired）

Term Composition

• CO (Cutoff): The second position after the hijack in a nine-handed table, i.e., the cutoff seat. It is a late position with positional advantage.
• Preflop: The stage before the flop.
• Bet-Fold: A strategy of making a bet (including an opening raise) but folding when facing a raise or re-raise from an opponent. It is a common stop-loss strategy.
• Paired: A hand that is a pocket pair (e.g., 66, TT, etc.).

Strategy Background

This term typically appears in discussions of GTO or exploitative strategies. In the CO position, holding some small to medium pocket pairs (e.g., 22-99) may sometimes fall into the bet-fold range. The reasons are:

• These pairs have a low probability (about 12%) of flopping a set. If faced with a 4-bet preflop, they are usually behind (against QQ+, AK, etc., they have decent equity but are not overall favorable), so folding avoids greater losses.
• The CO position is favorable, allowing the use of a mixed strategy with some pairs: calling some, raising some. Whether to fold after raising and facing a re-raise depends on the opponent's tendencies and table dynamics.

Typical Example

Assume blinds 1/2, CO holds 77 and opens to 6. Button (BTN) 3-bets to 18. If CO considers BTN's 3-bet range to be very strong (e.g., TT+, AQ+), then 77 has insufficient equity and is difficult to play postflop, making folding the best option. In this case, 77 is a "CO Preflop Bet-Fold Paired" hand.

Notes

• This strategy is not fixed; it must be adjusted based on the opponent's 3-bet frequency, stack depth, and player ranges.
• Against aggressive players, frequent bet-fold may lead to exploitation; against tight-passive opponents, this strategy can be used more often.