AK plays great as a call pre, then we can lean on checking back turn and always call the tiny river donk.
Flop Kd-9c-2s gives us top pair/top kicker on a relatively dry board. BB leads small into a big pot; solver wants us to call almost always, with only a small amount of large raises. Raising to 22.5bb is a bit too aggressive and mainly gets action from stronger Kx and sets.
Note: Flop raise is slightly too ambitious; calling the small donk with top pair/top kicker is higher EV and keeps our line more balanced.
Turn 7h is a complete brick; after BB calls our flop raise, their range is heavily weighted to strong Kx and sets. With SPR now under 2, checking back is a solid, low-variance option that avoids getting check-raised off our hand and keeps our overall strategy balanced.
River 4c bricks again and BB donks 1bb into ~67.5bb. We’re getting ~67.5:1 and need ~1.5% equity, so calling is mandatory—there’s no fold here.