Nine x Nine app for iPhone and iPad

Ready to play a challenging game of Sudoku? Yes? Then lets begin!
But be warned, this game is like nothing youve ever seen before. Here you have to build your own valid Sudoku grid using the number pieces falling down - and dont forget: If you put two of the same pieces in one row, one column, or in the designated 3x3 squares, you lose - Just like in regular Sudoku.

How to play:
Your goal in this game is to build up a valid Sudoku grid with randomly generated pieces that drop down. The star piece acts as a joker and can be used to substitute for any number. Each of the three heart symbols can be used to exchange the current piece with the next one by double-tapping. You can continue to the next level by completing the first six rows of the gameboard without any mistakes - that means having a valid Sudoku right to the end.

With a touch or a swipe to the left or the right, you can move the falling piece to the corresponding side. By swiping down you can make the piece fall faster.