Five simple pieces, 60 puzzle challenges! This classic from Binary Arts has been a best-seller for a decade, and is still going strong. Now with storage bag added in response to requests from parents and teachers. Ages 6 to adult. Having fun is great way to learn with ThinkFun & Think Fun games. ThinkFun games engage kids and educate kids. They challenge players and nurture the thinking skills important to growth and development. Our games aren’t designed to simply occupy a child’s time. They channel the natural joy and energy of play into a stimulating, family-focused way of building essential thinking skills.