Strictly Sudoku

Each row of nine cells must contain each of the numbers from 1 to 9 once and only once.

                       

Each column of nine cells must contain each of the numbers from 1 to 9 once and only once. Each of the nine 3 by 3 boxes of nine cells must contain each of the numbers from 1 to 9 once and only once. the sudoku starts with a partially filled grid and you must complete the grid while following the rules above. If you complete the grid, you have solved the sudoku. Each sudoku on this site has one and only one unique solution.
Use your mouse.

How good is your eyesight? Well, we have a game for you that involve fast thinking and good eyesight. The object of the game is simple, all you have to do is to place your bet, then keep your eye on the small black ball and then figure out in which shell it's hiding now.