Poker Term
4Bet from SB
4Bet from SB
Term: 4-bet from SB 小盲位4-bet The player makes a fourth raise preflop from the small blind position against the opponent's 3-bet.
Overview
The 4-bet from SB (4Bet from SB) is an aggressive preflop play in Texas Hold'em, referring to the small blind player re-raising after facing a 3-bet. Since the small blind is in a disadvantageous position (acting first postflop), this play typically requires very strong hand strength or the ability to balance ranges.
Typical Range
- Value Range: Usually includes KK+ (KK, AA), sometimes AKs (Ace-King suited). Some players also use QQ or AKo (Ace-King offsuit) for a 4-bet, but caution is advised.
- Bluff Range: May include a small number of medium-strength hands, such as A2s-A5s (small suited aces), certain connectors (e.g., 76s), which have playability if they hit the flop.
Strategy Considerations
- Position Disadvantage: The small blind is in the worst position postflop (First to Act), so the 4-bet should lean more toward value hands, avoiding excessive bluffing.
- Stack Depth: When effective stacks are deep (e.g., 100BB+), the 4-bet range can be wider; with short stacks (e.g., below 40BB), it tends toward shoving or folding.
- Opponent Tendencies: Against aggressive opponents who frequently 3-bet, you can increase 4-bet bluffs; against tight players, tighten your range.
Common Mistakes
- Mistakenly thinking you must 4-bet all strong hands from the small blind: sometimes flat calling or 5-bet shoving is also a reasonable option.
- Ignoring pot odds: if the opponent's 3-bet is small, calling may be more profitable than 4-betting.
Summary
The 4-bet from SB is a skill that requires fine balance, both to protect the value of strong hands and to avoid being exploited by opponents. In practice, decisions should be based on opponent style, table dynamics, and pot odds.