While we improved to second pair on the turn, the third spade completes flushes, making our hand a perfect check-call rather than a bet.
Flop Analysis
A small c-bet on this K-high texture is effective. We hold a significant range advantage as the 3-bettor, and our hand has enough backdoor equity to continue applying pressure.
**Ranges:** We have the nut advantage with all combos of AA, KK, and AK. The Button's range is wider and contains many hands that must fold to a small bet, such as small pocket pairs or weak suited connectors without a spade.
**Sizing:** Using a 33% pot sizing allows us to bet a high frequency of our range. It puts the Button's high-card hands in a tough spot while keeping the pot manageable for our Ace-high.
---
> **Takeaway:** On K-high boards in 3-bet pots, use small sizing to leverage your range advantage against the caller's capped range.
Turn Analysis
Checking is the preferred play here. Although we improved to second pair, the arrival of the third spade is highly favorable for the Button's calling range, which contains many flush draws from the flop.
**Board:** The Jack of spades is a 'scare card' for our range. It completes the most obvious draw (spades) and makes our hand a bluff-catcher rather than a value hand.
**Ranges:** By betting, we isolate ourselves against Kx and completed flushes while forcing the Button to fold the bluffs we want them to keep in. Checking allows us to realize our equity and call most reasonable bet sizes from the Button.
**Plan:** If we check and the Button bets, we have an easy call. Our hand is too strong to fold but too vulnerable to bet for value, especially since we don't hold a spade to block the Button's flushes.
---
> **Takeaway:** When a draw completes and you improve to a marginal made hand, check to control the pot and allow your opponent to bluff.
Note: Betting here is too thin; checking protects our range and allows our hand to function as a high-equity bluff-catcher.