SudoKoach makes solving Sudoku puzzles more fun. It does the tedious work for you, so you can concentrate on finding the solution. SudoKoach generates unlimited puzzles with six different levels of difficulty, so you don't have to wait for tomorrow's newspaper to start solving.
You can enter puzzles from the newspaper and SudoKoach will help you solve them. You can also print puzzles to solve later or to give to friends.
SudoKoach also has tools to help you out, including highlighting, coloring, and marking chains. You can check at any time to see if you're on the right track, and you can undo your moves if you make an error (try that with pencil and paper!
). If you get stuck, you can get hints--a little hint tells you what kind of move to look for, and a big hint shows you the exact move and explains the logic behind it.
SudoKoach has over 30 built-in solving strategies to help you become a better player. The detailed descriptions of these strategies explain why they work, and the practice mode lets you hone your skills on any particular strategy.