Tactical Motif VIII: X-Ray

X-Ray ( fr: Rayon X) is the motif where one adds control to a square through a piece.

X-Ray Illustration: Chigorin-ZnoskoBorovsky 1903

White to play and win
White played here 1Qf8+!. The f8 square is controlled indirectly by the Rook on d8, allowing for that move.
1..Rf8 2 Rf8 is Checkmate.














Exercise: White to play and win (Tal-Chandler, 1974)


1.?