Open K8o from SB, mostly check flop, and with SPR ~1.6 our turn bet is effectively a shove—once raised on, calling off with a flush draw and overcard equity is fine.
Flop T64 with two diamonds is semi-wet and connects well with BB’s defend range. Solver prefers checking this combo a lot and mixing in small bets; our 2.3BB stab is a bit larger than the preferred small sizing, but still reasonable as a mixed bluff-catcher.
The 3d turn completes the front-door flush and BB’s range is now very strong. With SPR ≈1.6, our 3.8BB bet is effectively a shove; after BB raises, we’re getting 3.3:1 and need about 23% equity. Kd8h has a flush draw plus some overcard equity, so calling off is reasonable. Solver’s fold frequency here is a heads-up reference; in practice, we should be more willing to bluff-catch versus a polarized raise.