Apologies in advance for sounding like an idiot, but After 1..Kh8, why not rd5?
Power of the passed pawn, flawed play or correct play?

this position actually (In my opinion) leaves you in a weaker position than your opponnet. points-wise, you are ahead, but the queen is definitely more powerful even than a r, b, and n.
stocke is completely wrong about the queen being more powerful than RBN and misses that the queen will be captured on the next move. The final position is obviously 1-0.
1.Bc7 looks somewhat better(winning more easily) although d6+ also wins. Bxf6 is not the most accurate move ( better is f4!) and Nf4 was actually Black's best move where he played it! Qxb7 should be met by Qxd6! where White is only a little better. Instead White should not take b7 and instead play g3 with a winning advantage.
stocke is completely wrong about the queen being more powerful than RBN and misses that the queen will be captured on the next move. The final position is obviously 1-0.
1.Bc7 looks somewhat better(winning more easily) although d6+ also wins. Bxf6 is not the most accurate move ( better is f4!) and Nf4 was actually Black's best move where he played it! Qxb7 should be met by Qxd6! where White is only a little better. Instead White should not take b7 and instead play g3 with a winning advantage.
Ah yes thank you! my opponent and I both missed the back rank mate after Qxd6! Thanks for the insight.
This is taken from a game I played here. Please point out if something I did was flawed and find the best play for black(the play here is taken from the actual game.)