I could not see how to set up the position in either the chess program that comes with macOS or Stockfish that I had downloaded. So I downloaded a program called ChessX, an open source program that I found at sourceforge and found that I was able to set the position easily and play it through as outlined in the book. This is a very useful feature.
The position above leads with proper play to White having the opposition against the Black King and therefore securing a draw. The proper play is:
1. Kg3!! Kc2 2. Kf2! d2 3. Kf1! Kd1 4. Kf2 Kd2 5. Kf1 Kd3 6. Ke1 Kc4 7. Kd2 Kb5 8. Kc3 Kxb6 9. Kb4 and White has the opposition and draws. Ultimately, the position will end up as shown below where White must be careful to retreat to b1 where the opposition can be maintained whether Black chooses to move the King to a3 or b3.
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