1.a7 [1.g4? Nc3 2.a7 Bg2 -+ ] Nb6

2.a5 [2.g4? Bg2 3.a5 Nc4 4..a6 Nb6 5.Kg6 Bf1 -+ ] Na8

3.b6 ( 3.g4? Bxb5 -+) Bxg2

4.Kg6 Bb7!

5.Kf6 Kf8

6.Ke6 Ke8

7.Kd6! Kd8

8.Ke6 [ 8.Kc5? Kd7 9.Kb5 Kd6 10.Kb4 Bc6+ 11.Ka5Kc5 12.b7 Nb6 13.b8Q Nc4# -+ ] Kc8

9.Kd6 Bg2

10.Kc5 Kb7

11.Kb5 Bf1+

12.Kc5! (12.Kb4 Kc6-+) Ka6

13.Kb4 Bg2

14.Ka4 Kb7

15.Kb5 Bf1+

16.Kc5 Bg2

17. Kb5 position draw =