Dr. Sudoku

Description

Dr. Sudoku lets you enjoy the hottest new puzzle phenomenon from Japan. Sudoku like a math problem, but is in fact a twisting puzzler. The rules are simple: start with a grid consisting of nine three-by-three squares in which some of the numbers are already supplied. Fill in the blank squares so that each column, row, and three-by-three grid contains a number from 1 to 9 with none repeated. It may sound easy but it takes forever to master! All-new tutorial mode