Abstract: A novel technique for very fast Sudoku solving using recognition of various patterns like Naked Singles, Hidden Singles, Locked Candidates, etc. is reviewed by conducting experiments and plotting the observations. Evaluation of the technique in solving random set of Sudoku puzzles collection show that the rate of solving can be greatly improved. However, only selected patterns are used for Sudoku solving in this review while even further improvement in solving rate may be possible if some more patterns could be detected and solved.