Vitaliy Kovalenko (Russia)
 
#3 4+1

b) Kh8 → b5

1.Nb4! Ke7 2.d8Q+ Kf7 3.Rf6#
1…. Kc7 2.d8Q+ Kb7 3.Rd7#
1.Kf4? Kpc7!

b) 
1.Nf4! Ke7 2.d8Q+ Kf7 3.Rd7#
1…. Kc7 2.d8Q+ Kb7 3.Rd7#

1.Nb4? Ke7!