Sudoku doesn’t require any special math skills or calculations. It’s a simple and fun game of logic that only requires brains and concentration.There is only one rule to Sudoku. Fill in the gameboard so that numbers 1 through 9 occur exactly once in each row, column, and 3×3 box.They can appear in any order and diagonals are not considered. Your initial gameboard will consist of several numbers that are already placed. These numbers cannot be changed. Your goal is to fill in the empty squares following the simple rules above.