Endgames: Distant Opposition

How can White maintain a draw in the following example?

The secret with 'the opposition', (when Kings fight each other for territory) is to maintain an odd number of squares between you and your opponent's King. 

So, in the following example ... What is the correct move for White? 

Show Solution

Solution: 1. Kg1! maintaining three squares (i.e. an odd number) between Kings