Keith Harris, New Zealand

I wanted top learn more about Sudoku so surfed the web to see what was available. I came across your website and completed all of the free lessons. After completing the course I was invited to sign up for the remainder of your lessons. I have done this and what a great decision it was. You explain concepts in a clear and concise way that is easy to understand. I have no hesitation in recommending your service to others like me who want to learn how to solve Sudoku puzzles.