Rauf Aliovsadzade (USA)
 
#3 9+5

Set:
 1...Ke4 2.Sb5  Kxe5 3.Rxe6# (A),
 1...Kxe5 2.Rxe6+ (A) Kd4 3.Sf5#.
 1.Rf1! -zz,
 1...Ke4 2.Re1+ (B) Kd4 3.Sxe6#,
 1...Kxe5 2.Sb5 Ke4 3.Re1# (B).
Change of play,change of White's moves' functions (Rxe6&Re1).