We should use our open-ended straight draw to apply pressure, but sizing down on the turn and following through on the river are key to maximizing fold equity.
Checking is the preferred play here. While we have two overcards, we lack a direct draw, and this board texture allows the BTN to comfortably continue with many hands.
Note: C-betting is acceptable but checking is higher EV; we lack a flush draw and the board favors the caller's condensed range of middle pairs.
Betting is correct now that we've picked up an open-ended straight draw, but the large sizing is a significant error that ruins our pot geometry. **Sizing:** The solver prefers a small (33% pot) or medium (50% pot) sizing. By betting 75% pot, we isolate ourselves against the top of BTN's range (sets, top pairs) and leave ourselves with an awkward, shallow SPR for the river. **Ranges:** We have a value advantage with overpairs like AA-QQ, but BTN has many middle pairs like 88 or 99 that are now indifferent. A smaller bet keeps their range wider and allows us to bluff more effectively. --- > **Takeaway:** When you pick up equity on the turn, use smaller sizes to keep the opponent's weak range in and preserve leverage for the river.
Note: The 75% pot sizing is too large; a smaller bet (33-50%) better leverages our range advantage and keeps BTN's marginal hands under pressure.
Checking is the standard GTO play once we reach the river with high card, but in practice, this is a prime candidate for a triple-barrel bluff. **Blockers:** Our KcQd is an excellent bluffing candidate because we block BTN's potential straights (though none are possible here) and, more importantly, we don't block the missed spade flush draws that BTN might fold. **Math:** With an SPR of 0.47, we have very little leverage left. BTN's range is heavily weighted toward flushes and trips (Js) after calling the large turn bet, making a bluff high-risk. --- > **Takeaway:** On paired, flush-completing rivers, high-card hands usually give up unless they hold specific nut-blockers.