Falling Sudoku

ゲームの説明
Combination of Falling Blocks Game and Sudoku. Solve the sudoku while the numbers are falling down.
How to play
Combination of of Falling Blocks Game and Sudoku. Solve the sudoku while the numbers are falling down. Get the numbers on the board while following the Sudoku rules: every number only once per row, column and 3x3 square.