Paradigm Puzzles - The Museum Collection. This intricately detailed line of laser-cut pattern puzzles challenges puzzle players to refit the pieces back within the frame. Spatial and logical thinking skills are challenged as shape and size combinations can seem daunting. Each wooden puzzle has numerous solutions; can you find even one? Six captivating conundrum titles in the series, each sold separately. This puzzle is called nonagon, because the tray has nine sides. They are all made of high quality wood. One player, age 8+. Instructions in 4 languages.