1...Na5+ (1...Ne5+ 2.Kd5 Qd6+ 3.Ke4 Qd4+ 4.Kf5 {=})

2.Qxa5  (2.Kd5 {?}  2...Qd6+ 3.Ke4 Qg6+ 4.Kf4 (4.Kf3 Qf5+ {-+}) 4...Bd6+

5.Kf3 Qf5+ 6.Ke2 Qg4+ 7.Kd3 Qc4+8.Ke3 Bf4+ 9.Kf3 Bxc7 {-+})

2...Qxa5

3.Nd5 ! (3.c8=Q {?try} 3...Qxb4+

4.Kd5 Qd4+5.Kc6 Qd6+ 6.Kb5 Qb6+ 7.Kc4 (7.Ka4 Qb4#) 7...Qb3+

 8.Kxc5 Qc3+ (8...Qc2+ {-+}))

(3.Nd3+ {?}

3...Kc2 4.c8=Q Qc3+ 5.Kb5 Qxd3+ 6.Kc6 Qd6+ 7.Kb5 Qb6+ 8.Kc4 Qb3+

9.Kxc5 Qc3+ {-+})

3...Kb1 {?!}

4.c8=Q Qa4+

5.Nb4 {!} 5...Qxb4+

6.Kd5 Qd4+

7.Kc6 (7.Ke6 {?} 7...Qg4+ {-+}) 7...Qd6+

8.Kb5 Qb6+

9.Kc4 {=position draw}