In chapter 10 of Play Optimal Poker 2, Andrew Brokos shows how continuation betting strategy changes dramatically when the pre-flop raiser is out of position against an in-position cold caller, rather than against the big blind, and why many “standard” cbets are actually bad in these spots.
1. Big Picture: UTG vs Button Is Not UTG vs Big Blind
The chapter compares:
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Opal: raises UTG,
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Ivan: calls on the button,
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Flop: J♠ 8♦ 6♦, about $13 in the pot and deep stacks behind.
Key structural differences from the earlier UTG vs BB scenarios:
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The Button cold-calling range should be strong:
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He gets worse pot odds than the BB,
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Risk of squeezes behind,
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So he should defend with tighter, better hands.
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Ranges are much closer in strength than UTG vs BB:
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Ivan even has a slight equity edge on this flop (~52% vs ~48%).
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Position becomes hugely valuable on a dynamic board like J♠ 8♦ 6♦:
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Many turn/river cards can change who has the best hand,
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The in-position player can adjust more accurately as the board evolves.
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Result: a lot of “standard” cbets that work against a big blind caller are not justified here versus a strong button caller.
2. Equity, Nuts Advantage, and the Dynamic Nature of the Board
On J♠ 8♦ 6♦:
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Equity:
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Ivan (Button) has a small equity advantage.
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Nuts advantage:
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It’s murky on the flop: Opal has overpairs; Ivan has more suited/connected stuff.
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But Brokos emphasizes that on such a swingy board, what matters more is:
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Who will have more nutty holdings on turns and rivers, not just on the flop.
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He contrasts two turn types conceptually:
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A static turn like K♦:
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Can lock in a very clear best hand (e.g. strong flush),
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Many flop hands become virtually dead.
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A still-dynamic turn like 2♠:
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Leaves many river cards that can change things,
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Makes it harder to plan huge polarized bets early.
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On these kinds of boards, position magnifies EV: the in-position player gets to see how OOP reacts to changing textures before committing big money.
3. Shocking Result: UTG Checks 100% on J♠ 8♦ 6♦ vs Strong Button Range
Given:
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UTG (Opal) vs a solid, tight Button calling range,
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Flop J♠ 8♦ 6♦ with lots of draws and possible big hands,
the equilibrium solution:
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Opal checks her entire range on the flop.
Why?
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She has no real equity edge:
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Against BB callers she can bet small to deny equity from trashy hands,
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Against a strong button range, she is the one with more marginal hands.
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“Take it down now” thinking is flawed:
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You can’t force your opponent to fold the hands you want to fold.
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Strong draws (e.g. T9, good diamond draws) will not fold even to huge bets.
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Big bets are hard to balance: they become strong pairs + strong draws only, making it easy for a competent opponent to defend well.
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AA / AJ / overpairs are strong but fragile on many turns:
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There’s no reward for “having the best hand on the flop” if you build a pot you regret on many turns.
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By checking:
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Opal keeps the pot manageable,
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Waits to see the turn card,
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Then decides whether it’s a good board to grow the pot with strong hands.
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So in this balanced, strong-range vs strong-range configuration, auto-cbetting is a mistake. The “standard cbet” heuristic assumes something closer to UTG vs BB, not UTG vs Button.
4. When UTG Checks, Button Effectively “Continuation Bets” Small
Once Opal checks:
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Ivan (Button) now has the option:
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Check back,
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Bet small (~33% pot),
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Bet larger (~75% pot).
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Equilibrium behavior:
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Small bet ($4 into $13) ~ 69% of the time,
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Large bet ($10) very rarely (~4%),
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Checks the rest.
Why small bets?
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He has a slight range advantage plus position.
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The small sizing:
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Puts pressure on Opal’s marginal hands (like A♥Q♥-type holdings),
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Forces her either to:
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Put money in with hands that will struggle later, or
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Fold away non-trivial equity.
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He does not have a big nuts advantage yet:
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So large, polar bets on the flop are less attractive.
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Bigger polarized betting comes later on certain turns/rivers.
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In effect, Ivan’s small bet functions like a cbet with positional edge, despite being the caller pre-flop.
5. How Opal Responds: Check-Raises, Calls, and Equity Realization
Facing Opal’s flop check and a small $4 bet from Ivan:
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She never leads (donk bets) in this main equilibrium model; all her aggression is via check-raises.
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Her check-raising range (~13% of hands) is built from:
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Strong made hands (sets, straights, strong two pair),
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Strong draws:
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T9,
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Big diamond draws,
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Some AQ with a diamond or diamond blocker (not for value, but as a future bluff line).
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Her calling range:
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Includes:
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Decent one-pair hands,
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Some overcards with draws or good backdoor potential (KQ with a diamond, K♠T♠, etc.),
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Hands like 77 especially when they carry a diamond, since backdoor flushes or straights give extra ways to win.
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Key points:
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Her weakest calls are high-card hands with some backdoor potential.
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She rarely folds completely hopeless stuff if she has useful backdoors (e.g. heart or diamond that can allow future semi-bluffs).
On later streets, this mixed call/raise/fold structure makes it hard for Ivan to bluff profitably: he never knows if her check-call line is “weak” or laying a trap.
6. Turn Play: Ivan Does Not Barrel Automatically
If:
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Opal checks,
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Calls the $4 flop bet,
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Then checks again on the turn,
Ivan’s average behavior across turns:
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Checks more than half the time (~55% on average).
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Even on his best turn cards, his betting frequency never goes “auto barrel everything”:
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Lowest checking frequency on any single turn is still about a third.
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Implication for Opal (and you, when OOP):
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Check-calling flop does not mean “I’m just folding turn every time.”
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A well-constructed check-call range will:
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Let you continue on many turns,
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Sometimes check-raise,
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Sometimes give up.
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If both players are playing well, turn aggression is selective, not automatic.
7. New Scenario: Exploiting a Loose Button Caller
Now Opal faces a much looser Button calling range from Ivan — many more weak suited hands and offsuit stuff.
Same flop: J♠ 8♦ 6♦.
Equity and Nuts Advantage Flip Around
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Opal now has clear equity advantage (>55%).
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Ivan:
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Has more combinations of two pair / weird nuttish stuff,
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But also far more total air, weak pairs, and junk.
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EV-wise:
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Opal’s EV jumps significantly (over $7 from the $13 pot).
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Loose range = “Garbage in, garbage out”:
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Wider starting range means more total whiffs on the flop,
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Which Opal can exploit.
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Opal’s Flop Strategy Changes Dramatically
Versus the loose range:
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She now bets ~62.5% of her range on the flop.
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She uses both bet sizes, but:
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The 75% pot bet gets used more than twice as often as the 33% pot bet.
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Why larger bets now?
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Ivan’s wide range contains a massive amount of weak/marginal hands.
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To make him indifferent to calling with things like K♠Q♠, she needs more pressure.
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Even though he technically has a nuts advantage (more crazy two-pair combos), that is swamped by:
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How many weak holdings he has relative to her.
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Her strong one-pair and overpair hands (QQ, AJ, etc.) can be played as thick value/protection bets.
Out of position:
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You cannot pot-control the same way as in position:
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Checking hands like QQ or AJ “to control the pot” just lets the in-position player decide whether to:
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Take a free card,
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Or start building the pot when he chooses.
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So OOP betting ranges become more linear:
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Many medium-strength, vulnerable hands go into the betting range,
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Rather than all being protected by checks.
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Ivan’s Response As the Loose Caller
When Opal checks in this loose scenario:
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Ivan now has a weaker range than in the tight-caller case.
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He:
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Bets small (~47% of the time; down from 69%),
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Still barely uses the large bet (~4%),
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Checks more often because he simply has more weak holdings.
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Opal’s defense vs his small bet:
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Similar structure: strong hands and strong draws check-raise often,
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But she folds less and defends wider:
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Even hands like AT, KQ, AQ without a backdoor now stay in vs the small bet.
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Turn play:
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Ivan still checks around half the time on most turns.
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Large overbets appear mostly on straight-completing turns that favor his range,
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Rarely on flush-completing turns, because:
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Those are easier for Opal to defend: she can continue with flushes, sets, and strong draws and fold everything else.
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8. Practical Heuristics & Test Situations
The chapter ends with some applied advice via test questions. A few standout ideas:
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If you raise from EP vs Button:
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You should cbet less often than if you raised from the Cutoff or Button.
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On favorable, relatively dry boards like A♠ 8♦ 6♦ as UTG vs Button:
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You can still bet a lot (~70% of range),
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But you should still maintain a checking range:
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Especially with unimproved medium pairs,
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And even some top pair with weaker kickers (like A♥T♥) as bluff-catchers.
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On Q♠ 6♦ 4♦ with AA vs Button:
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Solver mixes between:
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Bet,
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Check-call,
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Check-raise.
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In practice, check-raising AA can be especially profitable:
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Humans over-bluff when checked to on these boards,
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And are too sticky with top pair / good draws.
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Balancing that check-raise line:
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Use diamond draws,
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Big overcards with a diamond,
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Some backdoor-straight-and-flush combos (like A♠5♠, 77),
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Plus other strong made hands (sets, overpairs, AQ).
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9. Key Lessons from Chapter 10
Brokos distills several big takeaways:
1. In-Position Cold Callers Should Be Strong
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Button calls vs UTG should be much tighter than BB calls:
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Worse price,
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More players behind,
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So range is narrower and stronger.
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2. Cbet Frequency Must Drop Dramatically OOP vs Strong IP Range
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With no equity edge and no positional edge, the pre-flop raiser:
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Should often cbet much less,
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Sometimes not at all on certain boards (like the baseline J♠ 8♦ 6♦ example).
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3. Out-of-Position Betting Ranges Are Less Polar
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When you’re OOP:
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Checking doesn’t safely “control the pot” — villain can still bet.
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Therefore:
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More medium-strength, vulnerable hands should go into your betting range,
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You check fewer draws and fewer hands that fear many turns.
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4. Exploiting Loose Callers: More Value, More Bluffs, More Calls
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The wider your opponent’s calling range pre-flop:
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The more flops they miss, regardless of texture.
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Against loose callers:
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Cbet more often,
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Bluff wider (because they have more nothing),
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Value bet thinner (because their calling range includes many weak pairs and draws),
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Bluff-catch more often (because their betting range contains more junk).
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