selene tan

A while back, I found Simple Sudoku, a freeware Sudoku puzzle maker/solver. It generates puzzles for you to solve, and also has a lot of features to make it easier to solve them. After playing way too much Sudoku in it, I realized why it makes things so much easier. On the surface, Sudoku is all about logical deduction–the 9 in this square means you can eliminate 9′s elsewhere in the row and column, and so on. However, at higher levels, Sudoku is actually about pattern recognition, and that is what Simple Sudoku reveals.

(more…)