The Thinkfun Brain Fitness Solitaire Chess 80 Challenges Strategic Skill Game is a chess-themed game designed to improve strategic skills and cognitive abilities. With 80 different challenges to test your problem-solving prowess, this game offers a fun and engaging way to strengthen your chess skills. Created by the popular brand ThinkFun, this game combines the classic strategy of chess with modern twists and challenges to keep players entertained and engaged. It's an excellent choice for those looking to enhance their strategic thinking and decision-making skills.