Pros:
Sudoku is a mathematical problem which could drill your logic. Okoker Sudoku Pro provides 3 levels for users to choose. This version is a skinnable one while Okoker Sudoku Standard is not skinnable. It's worth trying, for the designs are very smart for guiding users; you’ll not be confused by these difficult problems.

Cons:
It’s a little boring to see the information before launching it.

Benefits
Sudoku is a kind of intellectual puzzle that fits all groups of people. This puzzle game doesn’t need one with excessively high IQ; we all could learn the game rules by practicing it. Don’t you want to try it?
Okoker Sudoku Pro is a better version which is enhanced functions and visual effects, these changes makes users feel more convenient and comfortable during using this program: for example—the default settings are very friendly to users, which lead us to start with it from the easiest way to access Sudoku.
When we start to get started with Okoker Sudoku Pro, it provides different kinds of sound—if you select wrong digits, the sound will turn a different voice differentiated from the correct. This could be a highlight to prompt users, as I was confused at first, and then I realized that something was done wrongly. The compatibility of Okoker Sudoku Pro is quite worth praising, there is no crash during play.

Setup
Okoker Sudoku Pro is a lightweight program for the size of it is mere 1.9MB. This is quite a small widget thus the installation finishes very quickly with little notice. The installation is quite easy by following its navigation. There is no adware as well as spyware of it, so you could install it without doubts.
Should you decide to remove this program, Okoker Sudoku Pro leaves us a shortcut to uninstall. There is nothing left after uninstalling this program; which is good news for users, since there is nothing to remove again.

Interface
It’s a miserable thing when I first launched the tool. The information about Okoker Sudoku Pro came first; when I wanted to quit the program, there was not only one window to close! This is the only thing made me sick. Except it, Okoker Sudoku pro is well designed—the buttons are semi-transparent effects and this version could change its skin. There are many choices to change; especially the visual effects match Vista most.

System requirements
Okoker Sudoku Pro runs well on Windows 95, 98, 2000, NT, XP; it could also be compatible with Vista. It requires your RAM at least 64MB, which is easy to realize since the popular configuration is 512MB or higher. You could leave 10MB space for store this facility. These requirements are trivial for today’s users.

Conclusions
Okoker Sudoku Pro is designed for Sudoku lovers to practice, as there are three different levels for different users; whatever you are a beginner or advanced user, you will be fascinated by this tool. The tool carries lots of considerate design. Once you try it, you will know what I mean here. If you want to learn more about Sudoku, start with Okoker is a decent choice.