Yottsugo Game from Fat Brain Toy CO is a fun word game that the whole family can enjoy. Yottsugo is a puzzle challenge for people who enjoy word and logic puzzles. The goal is simple: create a 4x4 grid of four letter words using the 16 letter tiles indicated on front of each clue card. A genius vocabulary is not needed to play. In fact, each of the words in the 40 puzzles are commonly used words. Sounds easy? Guess again! Recommended for ages 12 years and older. Includes 40 puzzles and 55 puzzle pieces.