"All the world is a puzzle, and Mike Brink--a celebrated and ingenious puzzle constructor--understands its patterns like no one else. Once a promising Midwestern football star, Brink was transformed by a traumatic brain injury that caused a rare medical condition: Acquired Savant Syndrome. The injury left him with a mental superpower--he can solve puzzles, calculate equations, and see patterns in ways ordinary people can't. But his condition has also...