Have some fun on this Sudoku page. This also serves as an example of an Ajax client-server process, which could be used for interactive pages on your web site. Read more.
Ajax / cgi-bin
What is Ajax? Briefly, it a process by which the browser can request specific information from the server at any time after the web page has been loaded. You can see, for example, how this page can analyze the sudoku grid and give a response without reloading or recreating a new page. The Sudoku Analyzer is also a good example of using an efficient cgi-bin binary process to perform a server-side task that would otherwise take too long. This binary logic performs its complicated sudoku analysis on the fast server, then sends a very small packet of information back to your computer, resulting in a quick response even with a slow internet connection.
What this means for your website is that you may employ an Ajax process to send data back and forth between the server and the visitor's browser, in dialogue fashion. A cgi-bin binary may be used to speed up a process that may be causing long delays and poor response times. Use both of these techniques with care, and only if there is a real need.
Select an unsolved cell at which to peek, then click 'OK'
Personal use: In the spirit of open computing and an open internet, you may use the Sudoku Analyzer free of charge on an unlimited basis. Use it as much and as often as you like, and share it freely with your friends. If you enjoy it, please think kindly thoughts toward the author (me, Jerry DePyper). If you are a believer, let that include a little prayer of blessing.
Commercial use: (For example, to generate puzzles for publication) - If there is a monetary end involved, you really ought to share an appropriate portion of the gain with me, who have worked many long hours on this page. It's your conscience.
Special terms: To license this or other work of mine, to incorporate it into your own website, or for other custom work, let's talk about your goals and arrange terms to our mutual benefit.
Please feel free to contact me with your questions, suggestions, comments, bug reports, contributions, etc.