Sudoku

[poccil]

This is a Sudoku program which I wrote in C#.  It requires the .NET Framework version 2.0 or later.  What's unique about this program is that it can generate proper puzzles according to their difficulty, rather than using a predetermined set of puzzles.  The program and its source code can be used for any purpose.

Download

http://upokecenter.com/projects/sudoku.zip (June 28, 2008)

 

[OS]

That's pretty cool. I like how it doesn't let you set numbers that aren't allowed. Nice touch. One thing I don't like is how you can use this to your advantage without any penalties. It may take awhile, but you can simply keep pressing buttons until it works.

Anyways, nice work. I'll look at the code later. Peace!

 

[Alexander Morou]

So, you wrote the interface for the program and converted the java Sudoku generator/solver which was converted by Rolf Sandberg from a C implementation and other logic provided by Günter Stertenbrink?

 

[poccil]

That is correct, I didn't write the generator and solver, but rather converted it.  It suited the needs for this program very reliably.  Merely the check for whether a number is legal within a square, as well as the rest of the user interface, are the parts of the program that I wrote.  I chose that particular generator and solver because it was in the public domain.

 

[Alexander Morou]

I looked up Günter Stertenbrink, he's a math nut, so I guess Sudoku was down his alley.

Nifty program, and good translation.  It probably helped that there's a lot of similar structural elements between C# and Java.  Were there any difficulties?