Sudoku: Brain puzzle 1.2.1

Sudoku: Brain puzzle - solve classic Sudoku puzzles. Fill in the tiles of the playing field with numbers from 1 to 9. Train your logic and develop quickness of wit in this Android game. The playing field is 3 by 3 boxes and each box has 9 tiles. Some of the tiles have numbers in them. Your task is to fill in all the tiles with numbers