Overview Similar Products –> Product Description Although the Smart Egg is still relatively young compared to the Rubik’s Cube, its range of variations has expanded significantly. The concept allows for virtually unlimited future designs, ensuring that the Smart Egg series will continue to grow far beyond what was originally imagined. There are 12 different 1-layer eggs , each progressively more difficult than the previous one, starting with the relatively simple Groovy Egg. The first egg is designed as an easy introduction to the Smart Egg mechanism, while difficulty increases steadily with each version. The hardest single-layer egg currently available is the Frank-Einstein, which “many testers were not able to solve within 30 minutes.” A full list of the 1-layer eggs in order of difficulty is provided below. Currently, there are three different types of 2-layer eggs . These puzzles feature more advanced mechanisms, allowing the inner labyrinth to be twisted and rotated during the solve. The Blue Dragon, Red Dragon, and Black Dragon have identical outer labyrinth structures, but each contains a completely different internal puzzle. Their difficulty increases in the order listed, with the Black Dragon requiring a minimum of 80 moves to solve. Product Videos Custom Field Product Reviews Write a Review Write a Review SMART EGG ASSORTMENT Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *