... Game 2.Large LCD screen display 3.Over 10,000 puzzles built-in 4.Three levels:easy/hard/advance Features:1.Sudoku ... Game 2.Large LCD screen display 3.Over 10,000 puzzles built-in 4.Three levels:easy/hard/advance 5.Direct number ... 7.Power,Hints,Submit,Mute,Start/Pause,Cancel Key 8.Fill in the grid so that every row,every column,and every3 ...