STRATEGY article: Button vs Cutoff 3-Bet Pot

Scenario Definition

In a 6-handed or 9-handed game, the CO ([Cutoff], [UTG+1]) opens first, and the button 3-bets. The pot goes to the flop with both players having either position advantage ([Button] has position) or reverse position (CO is out of position). This is a common high-frequency confrontation scenario in medium or deep stack situations.

Preflop Range Overview for Both Sides

CO Opening Range

• Generally, the CO opening range is about 20%-25% of total starting hands, including:
  • All pairs ([22]+)
  • All suited connectors (56s+, though some players may widen to 45s)
  • All Ax suited ([A2s]+)
  • Some offsuit broadways ([AJo]+, [KQo])
  • Some small [suited aces] and wide connectors (e.g., [A5s], [T9s], etc.)

CO Defending Range vs Button 3-Bet ([4-bet] or Call)

• [4-bet range] (about 2.5%-3% of starting hands): [QQ]+, AK (some players may include JJ or AQ mixed).
• [Calling range] (about 7%-9%): [99]-[JJ], AQ, some suited connectors (e.g., [KQs], [QJs], [JTs]), and some pairs (e.g., [77], [88]) plus suited Ax (e.g., [ATs]-[AQs]). Note that [low-stakes] players often call too much, while high-stakes players focus more on balance.

Button 3-Bet Range

• Depending on opponent tendencies, the button 3-bet range is typically between 7% and 10%, with a standard range including:
  • Value 3-bet: [TT]+, AQ+ (about 4%)
  • Bluff 3-bet: Ax suited ([A2s]-[A5s] as the main part), suited connectors (e.g., 56s-89s), and some low pairs (e.g., [44]-[66]) or offsuit connectors (e.g., [K9s]-[Q9s], etc.)
• Note: The [button] can widen the 3-bet range due to position advantage, but must avoid becoming too unbalanced.

Key Postflop Strategy Points

1. Button (In Position) Continuation Bet Strategy

• On dry flops (e.g., K-7-2 rainbow), the button should c-bet at a high frequency (about 70%-80%), using a small bet of about 1/3 pot.
• On wet flops (e.g., 9-8-6 two-tone), the [c-bet frequency] decreases to 50%-60%, and a larger bet of 2/3 pot can be used to protect the range.
• When the flop hits the top of the button's range (e.g., T-T-4), mix checking and betting to avoid being easily read.

2. CO (Out of Position) Defensive Strategy

• On the flop: The overall calling frequency should remain between 40%-50% to avoid over-folding.
  • On low boards (e.g., 2-3-7), call with all pairs and draws.
  • On high boards (e.g., A-K-Q), tighten the calling range, continuing only with top pair or better and strong draws.
• On the turn: If the turn card is a blank after calling the flop, the CO should consider folding weak pairs and hands without draws. With positional disadvantage, the [check-raise] range should be limited to two pair or better or combo draws.

3. Importance of [Board Texture]

• High-card flops (mostly A, K, Q): Button’s advantage diminishes; CO has more top pairs. Button should avoid over-bluffing and lean toward value betting.
• Mid-low flops (e.g., 7-5-4): Button bluffs more; CO defends with draws and small pairs but must consider implied odds.

Common Mistakes and Adjustments

• Button mistakes: [C-bet frequency] is too high without adjusting to flop texture; or giving up bluffs too early on the turn.
  • Adjustment: Mix in checks on appropriate boards to protect bluffing range.
• CO mistakes: Calling too wide, especially on high boards with marginal hands, leading to inability to realize equity on the turn.
  • Adjustment: Tighten defensive range based on opponent's c-bet size; if facing a large bet, tighten further.

Summary

The key to the button vs [CO 3-bet] pot is leveraging positional advantage and building a balanced range. Remember: Preflop ranges define the starting point for postflop strategy, and board texture dictates bet sizing and frequency. Through practice and review, you can consistently profit in this high-frequency scenario.