Houdini: Master of Escape by ThinkFun is a disentanglement puzzle, consisting of 40 unique challenges, mostly difficult. Considering its low price, this is a brain teaser of great value. For each of the 40 challenges included, there is a diagram on which it is clearly explained how to attach Houdini to the trap cage, using various ropes, locks and rings. After you do this, your task is to help the great magician "escape" via clever manipulation of the provided objects. Even though Houdini: Master of Escape is in its core a classic and well-known puzzle, the fresh presentation makes it feel very original, and also more fun to solve. This is a highly recommended toy, especially at its low price point of about $10.