Google Goggles

Our favorite weekend distraction is a quiet 15 minutes spent solving a Sudoku puzzle. But even that can be an frustrating experience if (like us) you make a mistake and are unable to solve the puzzle. Now, Goggles on Android and iPhone can recognize puzzles and provide answers to help make you faster than a Sudoku champ. So if you ever get stuck, take a clear picture of the entire puzzle with Goggles and we’ll tell you the correct solution. Check out this video to see how it works.

Source :- <a href="https://googlemobile.blogspot.com/2011/01/google-goggles-gets-faster-smarter-and.html" target="_blank" rel="nofollow noopener noreferrer">Google Goggles gets faster, smarter and solves Sudoku - Official Google Mobile Blog</a>