Rauf Aliovsadzade (USA)  
#3 11+4

1.Ra3!  - 2.Rd3  ~ 3.Rd5#.
1...d5 2.Rd4 Kf6 3.Rxd5#,thematic variation,
1...dxc5 2.Rxc5+ Kxf4 3.Se2#.
Rybinsk theme:In virtual threat (of a three-,or a more-mover) and solution the mates on same square but with different units.
Note: The virtual threat has to be full-length. (Proposed  by A.Melnichuk in 2007.)