A Zilahi-like situation in which the mating move is an indirect check and the moved (front) piece is captured in another phase, but the actual mate is delivered by the rear battery piece; therefore, the apparent mating piece differs from the formally moving piece.
See also: Zilahi.
Semenenko, Oleksandr
Semenenko, Valery
Pryamaya Rech; V. Vinokurov-50 JT, 2003
2nd Prize
a) 1.Bxh7
Sxd5
2.Rxf4
Sxf4#
b) 1.Rxd8
Rxe4
2.Sxe3
Rxe3#