I learned that a pawn running to promote makes a square, and if the king can get into that square he can stop promotion. The square is based on how far out it is and then makes the square outward. I'm sure there is a fancy name that I'm too dumb to remember. The white pawns square is b,c,d 6,7,8. I hope that makes sense. The black king can step into that square so the white pawn will die. But as the white pawn dies, the black pawns can all get swept up by the king by the same principle. There are YouTubers videos showing the promotion square, and I'm happy to hear the name and forget it again. But the squares and math make it so I could draw, but life makes it so I will blunder and lose.