1...Rh3! (a) 2.h6!!

Thematic try 2.Be5? c3! 3.h6 c2 (3...Kg8? 4.f6 c2 5.Bb2 Kf7 6.h7=) 4.Bb2 Rb3-+ (4...Kg8? 5.f6! Rh1 6.h7+= main line; 4...Rxh6? 5.Kd3 Rc6 6.Kd2=; 4...Rh1? 5.h7=) ;

2.Ba1? c3 3.Kd4 c2-+

2...Kg8 3.Be5!! (b)

3.Ba1? c3! 4.f6 Rg3 (4...c2? 5.Bb2 Kf7 6.h7=)5.f7+ Kxf7 6.h7 Kg7 7.Kd4 c2-+

3...c3 (A)

3...Kh7 4.f6=

4.f6!! (B) 4...c2 5.Bb2 Rh1

5...Rb3 6.h7+ Kxh7 7.f7! Rb8 (7...Rb4+ 8.Kf5 Rxb2 9.f8Q=) 8.Kf5!! Kh6 (8...Rxb2 9.f8Q=) 9.Kf6=;

5...Rxh6 6.Kd3=;

5...Kf7 6.h7 Ke6 7.h8Q Rxh8 8.Kd3 Rc8 9.Kd2 Kf7 10.Kc1=

6.h7+!!

6.f7+? Kxf7 (6...Kf8? 7.h7=) 7.h7 Rh3!! (7...Ke6? 8.Kd3=) 8.h8S+ Rxh8 9.Kd3 Rc8-+

6...Rxh7

6...Kxh7 7.f7=

7.Kd3

7.f7+? Rxf7-+ (7...Kxf7? 8.Kd3=; 7...Kf8? 8.Kd3=)

7...Rc7 8.Kd2

8.Bc1? Kf7-+

8...Kf7 (c) 9.Kc1= (C)