小盲位百大盲全下或弃牌策略（SB 100bb Push Fold）
SB 100bb Push Fold
In No-Limit Texas Hold'em, the small blind player uses a simplified preflop strategy that consists only of all-in or fold when the effective stack depth is about 100 big blinds.
Overview
SB 100bb Push Fold is a simplified preflop strategy, often used by beginners for learning or in specific exploitative scenarios. This strategy assumes that the small blind player only makes two decisions preflop: all-in (push) or fold, without considering raises or calls. "100bb" refers to an effective stack depth of 100 big blinds, which falls within the deep stack range.
Strategy Principles
In theory, the small blind with a deep stack should typically adopt more complex strategies, including raising, calling, and pushing all-in. However, the Push Fold strategy simplifies decisions to two extremes. Its core idea stems from the "push-fold" range in game theory optimal strategy, but that range is only suitable for very short stacks (e.g., below 10bb). Using this strategy at 100bb is usually suboptimal because it forfeits significant value:
- Pushing with non-strong hands may lead to being called by the big blind with a wide range, resulting in negative expected value.
- Folding playable hands (e.g., medium pairs, suited connectors) wastes opportunities.
Applicable Scenarios
- Teaching purposes: Helps beginners understand preflop ranges and pot odds.
- Exploitative adjustments: When the big blind is too tight-passive, a wider push range can apply pressure; when the big blind frequently re-raises, an extremely tight range (only pushing strong hands) can be used.
- Late tournament stages: Under ICM pressure, the small blind may adopt more extreme strategies, but 100bb is still atypical.
Common Range Example (For Reference Only)
A typical 100bb SB Push Fold all-in range might include:
- Strong hands: AA, KK, QQ, AKs (approximately top 5% of hands)
- Medium hands: Possibly some high pairs or AKo (depending on opponent's range)
But note: The precise range must be adjusted based on the opponent, and in practice, it is rare to use only push or fold exclusively.
Summary
SB 100bb Push Fold is an overly simplified strategy that is not optimal in most standard deep-stack cash games or tournaments. Players should learn more comprehensive preflop strategies that include appropriate raises, calls, and mixed actions.