SUDOKU Handheld Puzzle Game with LED Backlights (ES-259)

Over one million built-in Sudoku puzzles Three levels: easy, intermediate and advanced Direct number pad input Time display Blue background Function keys: power, hints, submit, mute, start/pause, cancel key Large LCD screen for display Fills in the grid so that every row, column and every 3 x 3 box contains the digits from 1 to 9