Missed Chances

This was a quarterfinal match between Micah and Grumpah. Micah would ultimately win on time, but failed to exploit a major opportunity that allowed Grumpah to take an advantage later on. Grumpah has just played kxh7. I can see why he thought this was a practical move in the short term. Its covered by his queen on the diagonal so he gains a pawn. There is an issue though. What happens if he moves the knight? What if his queen is forced to move off the diagonal abandoning the knight? Micah didn't force either of these outcomes. Instead Micah establishes his black bishop onto g7. Grumpah makes another mistake moving his queen to G3 to apply pressure to the black bishop. At this point micah should trade queens and take one of his free knights to gain material. Instead, he protects his bishop allowing grumpah to force a far less favorable trade.