Scotch Game Skewer Beginner Chess Puzzles

The scotch game skewer beginner motif appears in the Scotch Game after 1.e4 e5 2.Nf3 Nc6 3.d4 exd4, when White opens the center and later uses a skewer on a lined-up piece, often against the queen and king or queen and rook. In this opening, the key feature is the open d-file and the active bishop or rook that can attack a more valuable piece behind a less valuable one.