关煞位偷盲范围（Steal range from cutoff）
Steal range from cutoff
In No-Limit Texas Hold'em, the range of starting hands that a player in the Cutoff CO uses to raise in an attempt to steal the blinds when no one has raised before them.
Definition
The Cutoff steal range refers to the starting hand combinations that a player in the cutoff position (CO) selects to raise in order to steal the blinds and antes when all previous players have folded. The CO is the seat immediately to the right of the button. Since the button and blinds have yet to act, the CO can leverage positional advantage to gain significant control post-flop, making it suitable to widen the raising range.
Strategic Significance
- Position Advantage: The CO has a relatively favorable position post-flop (second only to the button). Even when the flop misses, it is easier to take down the pot through bets or bluffs.
- Stealing the Blinds: The blinds are "dead money"; a raise can potentially take the pot without seeing a flop.
- Image Building: Consistently stealing from the CO forces opponents to adjust their defensive ranges, creating more opportunities in future hands.
Typical Steal Range (Example)
The following is a common CO steal range for a hypothetical 9-handed table with 100BB effective stacks (adjust for 6-handed or different stack depths):
- Value Hands (~15%): Any pair (22+), A2s+, A9o+, KJ+, QJ+.
- Semi-Bluff Hands (~10%): Suited connectors (45s+), suited aces (A2s-A5s), certain suited gappers (K9s, Q9s).
- Total Steal Frequency: Approximately 25% of hands.
The actual range should be adjusted based on opponent tendencies. If the blinds frequently call or 3-bet, tighten the range; if the blinds are too tight, expand to 30% or more.
Considerations
- Opponent Defensive Tendencies: Against frequent 3-bettors, reduce stealing and increase 4-bet bluffs; against loose-passive callers, favor hands with show value.
- Stack Depth: With short stacks, the steal range shifts to all-in or small-raise strategies; with deep stacks, balance value and bluff proportions carefully.
- Tournament Factors: In tournaments, ICM pressure leads to a tighter steal range, especially near the money bubble.
Summary
The cutoff steal range is a fundamental concept for moving from beginner to intermediate poker. Properly constructing and adjusting this range can increase your win rate and elevate your overall strategic play.