A Fantastic Boredom-Buster For Even The Cleverest Of Kidsthe Perfect Companion For Vacation, This Collection Contains More Than 90 Puzzles, Including Memory, Word, And Number Workouts; Codes; Battleships; And Mind-Bending Spot-The-Differences. There Are Hours Of Fun To Be Had With Japanese Puzzles, Including Hanjie, Kakuro, Hitori, Sudoku, And Lots More. Let The Brain Games Begin.