Puzzle Piece Icon

While the image itself is a solid black, the underlying concept suggests a puzzle piece icon. This might represent a missing part, a challenge seeking its solution, or a crucial link in a larger structure. The dark background could symbolize a blank slate, an unresolved question, or the potential for a new discovery that completes a bigger picture. It's a symbolic prompt for thought and connection.

puzzle - icon - mystery - solution - abstract - connection - missing piece