1.Qe2+ Kf7!
1...Kf8 2.Qf3+ = ( 2.Qd1? Qg2+ 3.Kb8 Qc6 -+ )
1...Kd8 2.Qd3+ ( 2.Qe6? Kc7! 3.Qf7+ Kd6 4.Kb7 Qg2+ 5.Kb8 Qe4 -+ ) 2...Kc8 3.Qh3+ Kc7 4.Qh7+ =
2.Qd3!
2.Qf3+? Qf6 3.Qd5+ Kg6
A) 4.Qg2+ Kh5 5.Qe2+ ( 5.Qh3+ Kg5 6.Qg3+ Kf5 7.Qf3+ Ke5 8.Qd5+ Kf4 9.Qd2+ Kg3 10.Qe1+
Qf2 11.Qe5+ Qf4 12.Qe1+ Kg4 -+ ) 5...Kh4 6.Qh2+ Kg4 7.Qg2+ Kf4 8.Qf2+ Ke5 9.Qh2+ Ke6
10.Qg2 Nb6+! 11.Kb7 Nd7 -+
B) 4.Kb8 Qf8+ 5.Kb7 Qe7+ 6.Kb8 ( 6.Kc6 Qe3! -+ ; 6.Ka6 Nxc3 -+ ) 6...Kg7 7.Qg2+ ( 7.Qh5 Qd8+
8.Kb7 Qb6+ 9.Kc8 Qe6+ 10.Kc7 Qxc4 -+ ) 7...Kf8 8.Qd5 Qf7 9.Qd6+ Ke8 10.Qc6+ Qd7 11.Qg6+
Ke7 12.Qg5+ Ke6 13.Qh6+ Ke5 14.Qh2+ Ke4 15.Qe2+ Kf5 16.Qf3+ Ke5 17.Qg3+ Ke4 18.Qe1+
Kf5 19.Qf2+ Ke6 20.Qg2 Kf7(or Kf6) -+
2.Qd1+? Qg2+ 3.Kb8 Qc6 4.Qh5+ Qg6 5.Qd5+ Ke7 6.Qb7+ Kf8 7.Qd5 Qf7 etc.
2...Qe7
2...Ke8 3.Kb7 =
2...Qg2+ 3.Kb8 Ke6 4.Kc7 =
3.Qh7+!
3.Qf5+? Kg7 4.Qg4+ Kf8 5.Qc8+ Qe8 6.Ka7 Ke7! and wins because the bQ is on e8, not d8
3...Kf8 4.Qh8+ Kf7 5.Qh7+
A) 5...Ke8 6.Qg8+ Kd7
6...Qf8 7.Qe6+ Kd8 8.Kb7(or Kb8) =
7.Qc8+! Kxc8 stalemate 1
7...Kd6 8.Qa6+ =
B) 5...Kf6 6.Qh4+ Ke6 7.Qe4+ Kd7 8.Qb7+ Ke8 9.Qc8+
9.Qc6+? Kd7 etc.
9...Qd8
9...Kf7 10.Qc6 Qe8+ 11.Kb7 =
10.Ka7! zz Qxc8 stalemate 2 (model)
or 10...Ke7 11.Qxc5+! Nxc5 stalemate 3 (model)
