3-betting and 4-betting: applying pressure

The most common 3bet leak isn't a *bad* 3-bet — it's the 3-bet that never happens. Players flat-call raises with hands that should re-raise, surrendering two ways to win for just one.

When you 3-bet you can win right now (fold equity) or win later (you took the betting lead and the in-position initiative). When you flat, you can only win at showdown or by out-playing a stronger-looking range with no initiative.

• A raise to 2.2bb that you flat invites the blinds to squeeze and the original raiser to barrel.
• The same hand as a 3-bet folds out the trash behind you and isolates the one player you have an edge on.

Rule of thumb: if a hand is good enough to *continue* against a steal, ask whether it plays better as a 3-bet than a call. At 40bb+ in position, far more hands than you think prefer the raise.

Against a competent opener, your default 3-bet range should be polarized: your strongest value hands plus chosen bluffs, with the medium hands flatting (in position) or folding (out of position).

Value (always 3-bet): QQ+, AK, and JJ/AQs versus loose openers.

Bluffs (the leak-fixer): pick hands with *blockers* and *playability* — A5s–A2s (the ace blocks AA/AK), KQs/KJs, and suited connectors like T9s/87s that flop well when called.

Why blockers matter: A5s removes combos of AA, AK, AQ from villain's continuing range, so your bluff gets through more often and makes the nut flush/straight when called.

• Avoid 3-betting dominated offsuit junk (KJo, QTo, A9o) as a bluff — no blockers, plays badly, dead money when 4-bet.
• Avoid 3-betting your flat-call hands for value out of position (99, AJs, KQo); they want a multiway, lower-variance line.

Get the sizing right and the math does the work for you. Open is ~2.2–2.5bb.

• In position (e.g., button vs CO): 3-bet to 3x the open → ~7.5bb. Smaller because position is worth chips; you realize equity easily.
• Out of position (e.g., blinds vs button): 3-bet to 4x the open → ~9–10bb. Bigger to deny the caller's positional edge and good odds.
• Vs a limper (isolation): raise to 5bb + 1bb per limper. Punish limps relentlessly with a wide, value-heavy range.

Use one consistent size per spot for value and bluffs so you're never exploitable. A common leak is sizing up with bluffs and down with value — observant opponents print money against that tell.

Your 3-bet frequency should swing hard based on *who opened and from where*.

• Late-position opens (CO/BTN): widest opening ranges, so attack them. Add bluffs freely — this is where most of your 3-bet volume should live.
• Early-position / UTG opens: strong, condensed ranges. Cut bluffs to near-zero; 3-bet mostly value (JJ+, AK) plus a sprinkle of AKs/A5s.
• Vs a 'fold-to-3bet' nit (folds >65%): 3-bet any two reasonable cards as a bluff — they're handing you the pot.
• Vs a calling station who never folds: drop the bluffs, fatten the value range, and 3-bet 99/AJs for thin value because they'll pay off.

The trainer tracks your fold-to-3bet on the *other* side too: if villains see you only 3-bet QQ+, they fold everything and you never get paid.

When you open and face a 3-bet, flatting everything is a leak — you become a one-trick pony that only continues with the nuts. Mix in 4-bets.

4-bet sizing: out of position, ~2.2–2.5x the 3-bet; in position a touch smaller. Vs a 9bb 3-bet, 4-bet to ~21bb.

4-bet for value: QQ+, AK (against most 3-bettors). 4-bet as a bluff: hands just below your flatting range with an ace blocker — A5s, A4s, KQs — so you can fold to a 5-bet without burning a hand you'd rather play.

• A clean ratio is roughly 2 value : 1 bluff for your 4-bets at 100bb.
• Facing a 4-bet, your 5-bet is KK+ (and AK when stacks are ~100bb or vs aggressive 4-bettors); everything else folds.
• ICM brake: near a pay jump or with a covering stack at risk, shrink your 4-bet bluffs to almost nothing — busting on a bluff with a pay ladder above you is a catastrophic, not break-even, mistake.

Below ~25bb, the flat-then-fold-the-flop plan dies — you don't have enough behind to play postflop profitably. The lever becomes the 3-bet jam.

• 15–25bb: 3-bet shove a linear range over late-position opens — 99+, AJs+, AQo+, and add ATs/KQs/small pairs vs wide stealers. No bluff-only junk; every shove either has equity or solid fold equity.
• 10–15bb: widen the jam considerably vs steals; even A8o/KJo/55 clear the bar when they open from the button.
• Why shove, not raise-fold: a non-all-in 3-bet to ~8bb leaves you pot-committed but unable to apply maximum pressure — you give villain a cheap look and an easy 4-bet jam. Shoving puts the whole decision on them.

The trainer's push_fold charts and your stack-depth readout tell you exactly when to flip from 'raise' to 'jam'. When in doubt under 20bb, the jam is almost always higher-EV than the awkward small 3-bet.