Ultimate IQ Test _ Set of 3 Chunky Metal Puzzles in Gift Box 3 Chunky Metal Puzzles in compartmental Gift Box with sliding cover. The CLAWS - Difficult: The ENIGMA - Very Difficult: The TRIANGLE - Extreme Challenge ratings are subjective. Your experience may differ. Objective: Separate the pieces AND then be able to rejoin to their original state. No force required. Great method to stimulate your mechanical and intuitive skills.