The Art of Solving SUDOKU Step by Step

Solving Sudoku is a pleasurable exercise to the brain and increases the concentration power.

Sudoku, a brain stretching puzzle, has become popular in all corners of the world. Here we have carefully selected a few sudoku with the highest grade of difficulty and have solved them step by step. The numbers are fixed in a given cell with the help of arguments and logic. A few tips are supplied to overcome ambiguities.