We have seen in the previous example that the king must clear the way for his pawn, and now we shall analize the important warning that the pawn must not go too far too early. There are as many as four types of positions in which a step too many will definitely mean to miss a winning advantage. Diagram 229a shows a drawing position, discovered by Guretzky and Cornith in 1860. If the white pawn were on the fifth rank, the black king on d7, White would easily win. In this situation, however, White to move cannot win because he cannot cover the advance of the passed pawn. Both his pieces are tied by the defence of the “run out” pawn and cannot take any active action without damage.