Poker Term
大盲位15大盲注3-Bet全下（BB 15bb 3-Bet Jam）
BB 15bb 3-Bet Jam
bb-15bb-3-bet-jam Refers to a strategy where the player in the big blind position, with an effective stack of about 15 big blinds, makes a 3-Bet and directly jams all-in against an opponent's raise.
Overview
BB 15bb 3-Bet Jam is a common short-stack strategy, typically seen in late tournament stages or short-stacked cash game scenarios. When the Big Blind (BB) has an effective stack of around 15 big blinds (bb) and faces an opponent's open raise, they choose to 3-Bet jam (All-in) directly instead of making a standard-sized 3-Bet.
Strategy Principles
- Stack Depth Impact: 15bb is in the short-stack range. At this depth, a standard 3-Bet (e.g., raising to 3–4bb) would consume too many chips, leaving too few to play effectively post-flop. Going all-in directly maximizes fold equity and simplifies decision-making.
- Range Advantage: The Big Blind's defending range is relatively wide, but at 15bb the 3-bet jam range typically skews toward value hands (e.g., pairs, high cards) and some semi-bluffs (e.g., Axs, suited connectors).
- Opponent Reaction: Facing a short-stack jam, opponents need to call with a tighter range, so the Big Blind enjoys a high fold equity.
Notes
- Not every 15bb situation is suitable for a 3-bet jam. Factors such as opponent's open range, position, and tournament ICM pressure must be considered.
- If opponents tend to call frequently, adjust strategy by reducing bluffs and increasing value jams.
- Typical example: At blinds 100/200, BB has 3000 chips (15bb), UTG opens to 600, BB holds AJo and can choose to jam.
Related Terms
- 3-Bet: The third raise pre-flop.
- All-in: Betting all remaining chips.
- Effective Stack: The smaller stack size between players in the hand.
- Fold Equity: The expected value gained from an opponent folding.