Preflop and flop are solid, but folding A-high to one big turn stab after flop checks through gives up too much equity versus a polarized range.
Flop Analysis
Checking back with pure A-high here is exactly what the solver wants — we’re near the bottom of our range and don’t need to auto-stab just because we were the preflop raiser.
**Ranges:** Our range has more strong overpairs and the best Qx, but also a lot of air and backdoor draws; BB has plenty of Qx/9x/sets plus draws. With A♠T♣ and no diamond, we don’t pressure enough better hands or deny much equity from worse — they’ll mostly just fold.
**Board:** Semi-wet, two-tone, and fairly dynamic with possible straight and flush draws. A small bet is fine in theory with certain backdoor-heavy combos, but this exact hand is flagged as a mandatory check because it sits at the range bottom with poor barrel prospects.
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> **Takeaway:** On drawy Queen-high textures, don’t feel compelled to c-bet all your air — mix in range checks, especially with weak A-high that has poor follow-through potential.
Turn Analysis
Turn is where the leak appears: facing the big stab after flop checks through, A-high with decent equity versus a polarized range should continue; folding is too tight from a GTO standpoint.
**Ranges:** After both players check flop, BB’s range is weakened: many strong Qx and overpairs bet flop, so this large turn bet becomes polarized between some slowplays (Qx, occasional 9x/sets, boats) and a lot of delayed bluffs and semi-bluffs (missed diamonds, random stabs). Our A♠T♣ is still just high card, but it functions as a bluff-catcher versus that polar range.
**Board:** The turn pairing the Q makes the texture more static and reduces the number of strong value combos BB has relative to all the potential draws and air from flop. There is still a diamond draw available, and our hand doesn’t block those missed draws, which is good when we’re deciding whether to bluff-catch.
**Math:** We’re getting ~1.8:1 (call 11.9 to win 33.1), needing about 36% equity. Solver evaluation has this combo with ~50% equity versus the betting range and treats call as essentially mandatory (~90% frequency), while fold drops EV to zero. Range-wide, IP should defend more than we did here.
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> **Takeaway:** When flop checks through and a scare card pairs on the turn, don’t overfold your A-high bluff-catchers to one big stab if the line leaves villain polarized and your pot odds are favorable.
Note: Folding A-high to a single polarized turn stab with good pot odds after a flop check-through is too tight and gives up significant equity.