1.Qe3! 

1.Qf1? b2-+ (1...Qh6  2.Qe2 Qf6+ 3.Kb4 Qd4 4.Qg2!  4...b2 5.Qxc2=) 

1...b2 

1...Qf6+ 2.Kb4= 

2.Qa7+ Kb1 3.Qh7! 

Thematic try 3.Kb4? Qe4!-+  a) 3...Qd5? 4.Qh7 Kc1 5.Qh6+= (5.Kc3? Qf3+-+) ; b) 3...c1Q? 4.Sa3+=;  

3...Qa4 4.Sd2+ Ka2 5.Qxc2=

3...Qf3+ 4.Kb4 Qg2 5.Qf5! 

5.Qd3? Qb7+-+ 

5...Qb7+ 6.Kc3 Qg7+ 

6...Ka1 7.Qa5+= 

7.Kb4 Qg2 

7...Qc7 8.Sa3+= (8.Sd2+? Ka1 9.Qf1+ c1S!!-+ (9...b1Q+? 10.Sb3+ Kb2 11.Qf6+=))  

8.Qh7!

8.Kb3? Qg3+ 9.Kb4 Qe1+-+; 8.Qd3? Qb7+-+; 8.Sa5? Qd2+-+ 

8...Qg4  9.Qd3!

9.Kb3? Qg3+! 10.Kb4 Qb8+ 11.Kc3 Ka1!-+

9...Qe6 10.Se3! 

10.Kb3? Ka1 11.Qd4 c1S+-+ 

10...Ka2 11.Qa3+ Kb1 12.Qd3 Ka2 13.Qa3+ Kb1 14.Qd3, positional draw;

9...Qh4 10.Qg6 Qf4 (10...Qf2 11.Kc3) 11.Kc3! Qf3+ 12.Kd4= main line 

9...Qf4 10.Qg6 

10...Qf8+ 11.Kc3 Qf3+ 12.Kd4= 

10...Qf2 11.Kc3! Qf3+ 

11...Ka2 12.Qa6+= 

12.Kd4! 

12.Kd2? Qb3 13.Se3 Qb4+-+; 12.Kb4? Qb7+ 13.Kc3 Ka1-+ (13...Ka2? 14.Qxc2=) 

12...Qh3 13.Sd2+ Kc1 14.Sc4! 

14.Sb3+? Kd1!-+ (14...Qxb3? 15.Qg1+=) 

14...Qd7+ 15.Kc3 Qh3+ 

15...b1S+ 16.Kb4= 

16.Kd4 Kb1 17.Sd2+ Kc1 18.Sc4 positional draw/Pins & Unpins