Charles Sights

When I purchased your program I had just began to do Sudoku. I had no idea how to start so I went on the internet and found your web site. I found your lessons very easy to understand and very well presented. I have now finished the graduate course and am doing very hard puzzles. I still need a lot of practice but with your coarse I am getting better every day. I now enjoy many hours of Sudoku. Thanks Chad!