Four Knights Game Pin Beginner Chess Puzzles

In the Four Knights Game, the pin usually appears after the opening moves 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6, when one side develops a bishop to pin a knight on c3 or f3. For a beginner-level puzzle, the key idea is that the pinned knight cannot move freely because it would expose a more valuable piece behind it, often the queen or king.