The
objective of the game is to follow the game rule and fill in the grid. The player
will win the game if all the digits keep with the game rule. Table: 6*6(36
grids), 9*9(81 grids) 4 Levels: easy, medium, hard and evil 6*6 board:
800 build-in boards for each level 9*9 board: 1200 build-in boards for each
level Can pause and continue the game Counter function, Hint function, Save/Load
function and solution function Sound effect