A) 2...Qf6+ 3.Kc4! (3.Kb3? Qf7+! 4.Kb2 Qg7+ =; 3.Kc2? Qd6(b6) 4.Qb4+!? Qxb4+ 5.ab+ Ka6! 6.b8Q - stalemate)
A1) 3...Qb6 4.Qe5+! (4.Qd5+? Ka6 =) 4...Ka6 (4...Ka4 5.b8Q +-) 5.b8N+! (5.b8Q? Qb3+ 6.Qxb3 - stalemate) 5...Kb7 6.Nd7! (6.a4? Qb1(Kc8)=) 6...Qc6+ 7.Nc5+ win.
A2) 3..Qa6+ 4.Kb3! (4.Kc5(d4)? Qb6+ 5.Kc4 Ka6 =; 4.Kc3? Qf6+ 5.Kc4 Qa6+ loss of time) 4...Qd6(b6) 5.Qb4+! (4.a4? Ka6 =) 5...Qxb4+ 6.axb4+ Ka6! 7.b8B! win. (7.b8Q? - stalemate; 7.b8N+? Kb5 8.Nd7 a5 =)
7...Kb7 8.Be5(f4,g3,h2) a5 8.b5! +-.
B) 2...Qc1+ 3.Kb3! (3.Kd4? Qb2+! 4.Kc5 Qb6+ 5.Kc3 Ka6 =)
3...Qd1+ (3...Qc7 4.Qb4+ Ka6 5.b8N+! +-)
4.Kc4 (4.Kb2? Qd6! 5.Qb4+ Qxb4+ 6.ab+ Ka6! 7.b8Q(R) - stalemate; 4.Kc3? Qc1+ - loss of time )
4...Qc1+ (4...Qa4+ 5.Kd5! Qd7+ 6.Kc5 Qc7+ 7.Qc6 Qe5+ 8.Kc4 Qe2+ 9.Kd5 Qd3+ 10.Ke6 Qg6+ 11.Kd7 Qf7+ 12.Kc8 Qf8+ 13.Kc7 Qe7+ 14.Kb8 Qd8+ 15.Qc8! +-,
but not 15.Kxa7? Qb8+ 16.Kxb8 - stalemate; 4...Qd6 5.Qf5+ Ka6 6.Qb5# )
5.Kd5 Qc7 6.Qb4+ Ka6 7.b8N+! (7.b8Q? Qe5+ 8.Kc4 Qc3+ 9.Qxc3 - stalemate)
7...Qxb8 8.Qxb8, win. 
