In the previous article in this series, we showed how to get started at solving Sudoku puzzles by searching the grid for “low-hanging fruit” and using simple process of elimination skills to identify which numbers need to go in which empty spaces.

In the prior article in this series on how to solve Sudoku puzzles, we had made a few breakthroughs and successfully solved nearly 2/3 of the entire grid. Now let’s see what we can do to keep building on this success.