I have written a Sudoku book to help anyone master Sudoku, including an extensive section on advanced strategies to help explain the useful patterns.
While my knowledge surely pales in comparison to the forum experts, it is my hope to have explained the concepts with diagrams in a way that anyone can use the strategies.
I have placed the content of my book on my website to facilitate review. I hope Sudoku enthusiasts of all levels will visit my site to see if you find it helpful. Please provide feedback so I'll know whether I've accomplished my mission.
Here is the link: www.830pm.com/sudoku
Thank,
Phil