AKo CO on K63fd: AK vs Flop Check-Raise
- Hero
- A♦K♥
- Position
- CO vs BB
- Pot
- Single-Raised Pot
- Flop
- 3♦ 6♥ K♦
Preflop and postflop decisions are fundamentally sound; the main improvement is using a smaller flop c‑bet and being ready to fold more rivers exploitatively at NL200 versus this underbluffed line.
Flop Analysis
Top pair top kicker is a clear value bet, but we want to use a smaller sizing; betting ~1.8bb instead of 3bb performs better with our whole range and keeps villain wider.
**Ranges:** We have a slight range and clear nut advantage: more strong Kx (AK, KQ) and overpairs, while BB has more weak pairs and draws. This favors a high-frequency small bet, not a big one.
**Board:** Semi‑wet but not super connected — there is a diamond draw and a few low straight draws, yet it’s still a King‑high, relatively static board where our made hand is already strong.
**Sizing:** Small c‑bets (around 1/3 pot) extract from worse Kx, 6x, pocket pairs and floats while risking less versus raises; the larger ~55% sizing starts to overpolarize us and narrows BB’s continuing range unnecessarily.
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> **Takeaway:** On King‑high, mildly wet boards as the aggressor, favor a small c‑bet size with our whole range, including strong one‑pair hands like AKo.
Note: Flop bet size is larger than optimal — solver prefers a smaller ~1/3 pot c‑bet with AKo here.
Flop Analysis
Facing the check‑raise, calling is exactly what we want with top pair top kicker — we comfortably clear the equity threshold and keep in bluffs and dominated Kx.
**Ranges:** After BB check‑raises, their range becomes polarized between strong value (sets, two pair, some Kx) and draws (diamond draws, some low straight draws), while our AKo sits in the upper‑mid of our range and is too strong to fold or turn into a bluff.
**Math:** We’re getting about 1.8:1 and need ~36% equity; AKo has far more than that versus this polar range, so calling and playing turns with position is clearly profitable.
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> **Takeaway:** Versus a flop check‑raise on a King‑high board, top pair top kicker almost always continues as a call rather than a fold or re‑raise.
Turn Analysis
Once we call the flop and face a medium turn barrel, calling again with AKo is correct; our hand is still ahead often enough and the pot odds plus low SPR make folding too tight.
**Ranges:** The 5c connects some of BB’s range (24, 47, 75) and keeps their value range relatively strong, but they still have plenty of semi‑bluffs and bluffs from missed diamonds and low straight‑draws; AKo moves toward a bluff‑catcher but remains a top part of our continuing range.
**Math:** We’re getting about 2.3:1, needing ~30% equity; solver shows AKo well above that, and with SPR dropping under 2 we’re effectively committing versus this sizing structure.
**Plan:** After calling turn, we should expect to call off on many rivers versus reasonable sizing, but be ready to fold if population drastically under‑bluffs certain scary textures.
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> **Takeaway:** Once we call a flop check‑raise and face a non‑disaster turn, top pair with good kicker and strong pot odds should usually continue, especially with SPR already getting shallow.
River Analysis
River is theoretically a mix between calling and jamming with our hand; calling the shove at this price is fine from a GTO standpoint, though at NL200 folding more often versus this exact line can be a strong exploit.
**Ranges:** The paired 3 improves BB’s 3x to trips and doesn’t remove straights or strong two‑pair; villain’s range is value‑heavy here, and we are capped at two‑pair while they still have boats, trips, and straights alongside some bluffs.
**Math:** We’re getting 3:1 and need ~25% equity; solver range data gives our hand enough equity to continue and even mix in some value‑shoves, which is why calling is allowed with AKo.
**Exploits:** At NL200, multi‑street lines of check‑raise flop, barrel turn, and jam river on a relatively brick river tend to be under‑bluffed; versus most regs we can fold AKo more often than GTO here unless we’ve seen them over‑bluff these spots.
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> **Takeaway:** Solver is indifferent with AKo versus this river jam, but at NL200 population frequencies usually justify folding more often against this triple‑barrel, flop‑check‑raise line.
Key Concepts
- Multi-Street Play
- Hero Slight Advantage
- IP
- Semi-Wet Board
- LEAN TOWARD AGGRESSION