Lesson 6 The rule of exclusion. Most important for all puzzles from easy to difficult.

This together with tutorial # (see next video) is essential as there are many ways to eliminate small numbers using this technique. A better place to see the exlusion rule in action is to go to Tutorial #2 https://www.youtube.com/channel/UCd8JaOdfEWcJOtwG6YayW0w The biggest mistake beginners make is to put ALL possible numbers in an empty cell. See lesson 4. I repeat in this lesson the 2 cell hint, which can be used for all puzzles to begin with. Get into the habit of looking for ramifications every time you solve a new number. NEW you can now go to my web site and see an INDEX OF VIDEOS under strategy headings. Click on the number and it will take you to the video of interest. http://www.sudokuguy.com