The White King can move to any space. It can capture any pawn at any time.
However, the White King must spend several turns in preparation to capture a piece completely.
The Black Queen must realize the game is taking place. The Black Queen can move one space per turn.
If the Black Queen captures the White King, the game is over and the pawn is free. This is a draw.
If the White King claims every pawn, he can begin to claim the Black King.
If the Black King is claimed, the Black side loses, and the Black Queen is considered captured.
The White side cannot lose.
This is the Most Important Rule.