IntermediateRelated: Discovered Attack
Discover and Fork
White's knight is sitting directly between its own rook and the enemy king.
Your Move
White to move. Find the knight move that both checks and wins material.
Solution: 1. Nb6+
Nb6+ moves the knight completely out of the way, uncovering the rook's check straight down the d-file — and the knight's new square on b6 simultaneously attacks the rook on a8. Black must deal with the check first, and White wins the rook next move.