While AKs is a powerhouse preflop, it becomes a poor bluffing candidate on connected boards where it blocks the opponent's folding range.
Flop Analysis
In this 3-way pot, checking is the preferred play to realize our equity and protect our checking range on a board that doesn't favor our high-card heavy range. Betting large here is an over-extension of our range advantage.
Note: Betting is a mistake; AKs is a mandatory check-back here to realize equity and protect our range on a dry, low board.
River Analysis
Shoving here is a significant error; AK is one of the worst bluffing candidates in our range because it blocks the exact hands we want Villain to fold while unblocking their calling range.
**Ranges:** Villain's range is condensed into many marginal made hands like J9, T9, and 97. We need these hands to fold, but by holding the King and Ace, we block the missed broadway draws (like AJ) that would have folded anyway.
**Blockers:** Our AcKc is problematic because it blocks the 'air' in Villain's range. We want Villain to have hands like AJ or KJ that missed or are weak, but our cards make those holdings less likely, leaving Villain with a range weighted toward straights and two pairs.
**Math:** The all-in shove is a massive overbet that needs to work over 60% of the time to be profitable. Given the board connectivity and our poor blockers, we simply don't generate enough folds to justify the risk.
---
> **Takeaway:** Avoid turning Ace-King into a river bluff when the board runout completes multiple draws and your cards block the opponent's folding range.
Note: The river shove is a massive punt; AK blocks the folding range and has zero fold equity against a range that has improved to straights and two pairs.