We correctly defended a gutshot on the flop but properly folded when the turn completed straights and faced a polarized overbet.
Flop Analysis
Calling is the standard play here. We have a gutshot to the nut straight and two overcards to the middle of the board, giving us enough equity to continue against a small continuation bet.
**Board:** The texture is relatively dry but favors the raiser's range, as they hold more Ax combos. However, our gutshot to the broadway straight provides robust equity that realizes well in position.
**Math:** Getting 3.7:1 on a call, we only need about 21% equity to continue. With roughly 31% equity against a standard c-betting range, this is a very comfortable call.
**Sizing:** CO's small 2.3BB bet (about 27% pot) allows us to continue with a wide range of draws and marginal hands, as we aren't being priced out of our equity.
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> **Takeaway:** When facing small c-bets in position with nut-draw potential, calling is usually superior to raising to keep the villain's bluffs in.
Turn Analysis
Folding is the correct disciplined play. Although we improved to second pair, the Qd is a disastrous card that completes KJ straights and gives CO many two-pair combinations.
**Ranges:** CO's range is now very strong, containing all the straights (KJ) and two pairs like AQ or QT. Our pair of Queens is essentially a bluff-catcher that blocks the straight draws we want Villain to be bluffing with.
**Sizing:** The 13.3BB overbet (125% pot) is highly polarized. By betting more than the pot, CO is saying they either have a monster or total air; against this sizing, our mediocre pair and gutshot cannot profitably continue.
**Plan:** If we call here, we are left with an SPR of less than 1 on the river. We would be forced to call off on most bricks against a range that has us crushed, making the fold now the highest EV path.
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> **Takeaway:** Don't fall in love with improving to a pair when the board texture completes the most obvious draws and the opponent uses polarized sizing.