1.d3!! 

1.d4? Kf6= 

1...Kf5 

1...Kf6 2.Kd6 (2.Ke4? Sd2+=) 2...Kf7 3.f4 main 

2.Kd6 Kf6 3.f3!! zz 

3.d4? Sd2= 

3...Kf7 

3...Kg6 4.d4! (4.b4? Sc3 5.d4 Kf7! 6.d5 Ke8!=; 4.Kc6? Sd2 5.b4 Sxf3=) 4...Sd2 5.b4 Sxf3 6.b5= 

4.f4! Kf6 

4...Sd2 5.b4 Sb3 6.b5+- 

5.d4! 

5.Kc7? Ke6!! zz (5...Sd2? 6.b4 Sb3 7.b5 Kf5 8.b6 Sa5 9.d4 Ke4 10.f5!+-; 5...Kf5? 6.d4 Ke4 7.f5!+-) 6.Kc6 Sd2= 

5...Sd2 6.b4! 

Thematic try 6.d5? Sc4+ (6...Sb3? 7.Kc7! Sd4 8.d6 (b4) 8...Sb5+ 9.Kc6 Sd4+ 10.Kd7 Sb5 11.b4 Kf7 12.f5 main A) 7.Kc6 Ke7 8.b4 Kd8! 9.b5 Sa5+ 10.Kb6 Sc4+ 11.Kc5 Sa5 12.f5 Kd7 13.f6 (13.b6 Sb7+=) 13...Sb7+ 14.Kb6 Sd6= 

6...Sc4+ 

6...Se4+ 7.Kc6!+- (7.Kd5? Sc3+=; 7.Kc7? Sc3=)  

7.Kc7!! 

Thematic try 7.Kd5? Se3+ 8.Kd6 Sf5+= (8...Sc4+? 9.Kc7 main A)

7...Sa3 

7...Ke7 8.b5! (8.d5? Sd6 9.Kc6 Sf5 10.b5 Sd4+=) 8...Sd6 9.b6 Sb5+ 10.Kc8 Sd6+ 11.Kb8! Kd7 12.d5 Sc8 13.b7 Sd6 14.f5 Sxb7 15.Kxb7 Kd6 16.f6+- 

8.d5! 

8.Kd6? Sc4+ 9.Kc7 loss of time 

8...Sb5+ 9.Kc6! 

9.Kb6? Sd4 10.Kc7 Sb5+ 11.Kc6 loss of time 

9...Sd4+ 10.Kd7! 

10.Kc5? Sf5 11.b5 Ke7 12.b6 (12.Kc6 Sd4+=) 12...Kd7=; 10.Kc7? Sb5+ 11.Kc6 loss of time. 

10...Sb5 

10...Kf7 11.d6! (11.f5? Kf6=) 11...Sb5 12.f5 main A; 10...Kf5 11.d6+- 

11.d6!

11.Kc6? Sd4+ 12.Kd7 loss of time. 

11...Kf7 12.f5! 

12.Kc6? Sd4+ 13.Kc7 Sb5+ 14.Kd7 Kf6 15.Kc6 loss of time. 

12...Kf6 13.Kc6 Sd4+ 14.Kd5! 

[14.Kb7? (Kc7?) 14...Sb5 15.Kc6 Sd4+ 16.Kd5 loss of time] 

A) 14...Sf3 

B) 14...Sxf5 15.b5 Se3+ 16.Kc6 Ke6 17.d7 Ke7 18.b6 Sc4 19.Kc7 Sxb6 20.d8Q+ wins (Excelsior) 

15.d7! 

15.Kc6? Sd4+ 16.Kd5 loss of time; 15.b5? Se5 16.b6 Kxf5 17.b7 Sd7 18.Kc6 Ke6 19.Kc7 Sc5 20.b8Q Sa6+= 

15...Ke7 16.f6+! Kxd7 17.f7 Ke7 18.b5 Se1! 

C) 18...Sg5 19.f8Q+(f8R+) 19...Kxf8 20.b6 Sf7 21.b7 Sd8 22.b8Q wins (Excelsior). 

19.b6! 

19.Kc4? (Kc6?,Kd4?) 19...Sf3 20.Kd5 Se1 21.b6 loss of time. 

19...Sd3 20.Kc6! 

20.b7? Sb4+=; 20.Kd4? Sb4= 

20...Se5+ 

20...Sb4+ 21.Kb5+- 

21.Kc7 Sxf7 22.b7 Sd6 23.b8Q wins (Excelsior).