Basically, you read along as a medium-strength sudoku puzzle is analyzed and solved; includes mouseover graphics so you can see what you should do next. Sudoku Puzzles - How to Solve [Sudoku.com] ...

Explaining how this can help you solve a sudoku puzzle, the Mastering Sudoku website said: "The Phistomofel Ring is not just an interesting example of set theory, but can also be used as a solving ...

These printable sudoku puzzles are four different levels of difficulty. You want to start with the easy ones, but if you're an expert, you can skip to the extra hard puzzles. The post 20 Printable ...