Rubik's Sudoku combines the best of two of the greatest puzzles of all time - it's Sudoku without the pencil and without all the erasing, and a process for solving the puzzle that will appeal to fans of both Sudoku and Rubik's(R) alike. Players try to fill a nine-by-nine grid so that each row and each column contain the numbers 1 through 9, and also that each three-by-three grid contains each of theses numbers. Instead of a pen, moveable pieces with numbers and in nine different colors are set on the board and the number finding process can begin! A storage tray and a booklet with 100 starter puzzles and solutions make this a take-anywhere, play-anytime puzzle.