Sudoku was a pastime I could not master for quite a few years (I am in my 70s) until a few weeks ago when I discovered “Chad, My Sudoku Professor”. With his help I am sharpening my ability to be patient and focused. The lessons are very easy to follow. Once I was able to absorb the basic technique needed to arrive at a solution the game became fascinating. I am only a sophomore now and already feel I could become addicted to the game. Thank you Chad for helping me discover the elation behind a finished game. You must be the best in this field.