Sudoku is played on a grid of 9 x 9 spaces. Within the rows and columns are 9 “squares” (made up of 3 x 3 spaces). Each row, column and square (9 spaces each) needs to be filled out with the numbers 1-9, without repeating any numbers within the row, column or square. LofGames made a very easy user interface and many more feature for you to enjoy the classical SUDOKU game. Sudoku, Shapes Sudoku, number puzzle, logic puzzle, brain training, number game, HTML5 puzzle, mobile puzzle, online sudoku, easy sudoku, educational game, puzzle game, cognitive skills, number 1 to 9, logic, problem solving, Arcade, Block, Board, Educational, Mobile, Puzzle, School