Mastering the fourbet Advanced Re-Raise Strategy for Modern Poker

Understanding the fourbet is a pivotal step for any serious poker player who wants to move beyond basic preflop concepts. The fourbet—an aggressive re-raise after a three-bet—carries weight in both cash games and tournaments. Learning the theory and applying it with discipline separates winners from the rest. Visit https://fourbet.ng to see one example of branding and platform naming around this concept.
At its core, a fourbet is about leverage and information. When an opponent three-bets, they are representing a strong range. A fourbet performs several functions: it can isolate the three-bettor, fold out speculative hands from the initial raiser, and extract value from made hands or create fold equity when facing marginal holdings. Success with the fourbet depends on precise range construction, positional awareness, and stack-size sensitivity.
Range construction begins with understanding which hands to use for value and which for bluffs. Value fourbets are typically reserved for premium hands that fare well in all-in or high-commitment scenarios—think AA, KK, and sometimes AK and QQ in deeper-stacked games. Bluff fourbets are armed with blockers and playability considerations: hands like A5s, A2s, KQo, or suited broadways can be effective if they reduce the likelihood the opponent holds premium combinations. Mixing bluffs with value hands keeps opponents guessing and prevents predictability.
Position is the single most important structural factor in deciding whether to execute a fourbet. In position, the fourbettor gains postflop advantage, making a fourbet a stronger play for both value and bluffing ranges. Out of position, the costs of being committed to a four-way pot increase, and the decision should be more conservative, especially when facing skilled opponents who can exploit the positional disadvantage.
Stack size dictates the optimal fourbet strategy. With deep stacks, a fourbet often aims to isolate and play postflop; thus, the range becomes wider and includes more speculative holdings. In medium stacks where effective stacks are 30–80 big blinds, fourbets often approach shove-or-fold decisions; here value fourbets tighten up and bluffs should include hands with blockers to premium holdings. Short-stacked environments, common in late-tournament play, transform many fourbets into shove spots, where fold equity and immediate stack pressure matter most.
Exploitative versus GTO approaches to fourbetting depend heavily on table dynamics. A GTO-minded player will balance value and bluff fourbets to avoid being profitably exploited. However, exploitative adjustments are often more profitable in practice: if an opponent folds too frequently to fourbets, widen your bluffing range; if they call light, tighten value and reduce bluff frequency. Observing tendencies—squeeze frequency, three-bet sizes, and postflop competency—guides profitable exploitative changes.

Bet sizing matters. A fourbet size should achieve its intended goal: folding out hands, committing ranges, or building a pot for value. Common sizing strategies are a percentage of the effective stack or a multiple of the three-bet. Against a small three-bet, a larger fourbet can present an all-in-like decision, while against large three-bets, a smaller fourbet may be more effective for value extraction or inducing calls. Consistency and logic in sizing also prevent giving away information unnecessarily.
Postflop considerations define the profitability of many fourbet spots. Hands used as bluffs should have some playability or the ability to realize equity on favorable boards. If you fourbet with dry hands that cannot continue effectively, you rely almost entirely on fold equity, which can be risky if opponents adjust by calling more often. Conversely, value fourbets should transition to straightforward plans on later streets: build the pot with clear ranges and avoid complicated lines that allow opponents to exploit you by check-calling or float plays.
The meta-game cannot be ignored. Recreational tables, anonymous formats, or platforms with high aggression call for different fourbet tactics than elite-sharp fields. In soft games, more aggressive fourbetting for value and bluff can win larger pots; in tough games, preserve balance and avoid creative bluff-heavy lines unless you are confident in postflop edges. Tournament structures also change incentives: escalating antes and blind pressure push fourbet shoves as a preflop pressure tool.
Practical drills for improving your fourbet game include range construction exercises, solver-assisted review, and focused session goals. Build a set of default ranges for various positions and stack sizes, then test them against solvers and adjust for your opponents. Track outcomes: are your fourbet bluffs winning at expected frequencies? Are value fourbets being paid? Post-session analysis of hands and adjusting sizing and frequencies will yield steady improvement.
Common mistakes to avoid include over-bluffing, neglecting positional disadvantages, and ignoring stack depth. Another frequent error is using the fourbet as a pure ego play—aggression without plan is expensive. Respect table dynamics and pick your spots: a well-timed fourbet can end a hand instantly and earn a big pot; a poorly chosen one will leak chips and reveal tendencies.
To summarize, mastering the fourbet requires a blend of theory, practice, and adaptability. Focus on balanced ranges, prioritize position, respect stack sizes, and make sizing choices that fulfill your strategic objectives. Combine solver study with exploitative adjustments based on opponents, and you will turn the fourbet into a potent weapon in both cash games and tournaments. With disciplined application, the fourbet becomes not just a tactical move, but a cornerstone of an aggressive and intelligent preflop strategy.