Two Knights Defense Decoy Into Pin Chess Puzzles

The Two Knights Defense Decoy into Pin is a tactical motif that arises in the opening after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6, when White uses a decoy to lure a defender onto a vulnerable square and then pins it. The key idea is to tempt a knight or pawn into a line where a bishop or queen can create a pin against the king or a valuable piece, often on the e-file or along the c4–f7 diagonal.