Reply to comment

An applet to solve Sudoku puzzles.

The Applet

The Game

This applet can solve Sudoku puzzles. Just type in the starting position and then
click "Solve next move" to find the next play. "Enter new puzzle" will clear off the playing space so you can enter a new puzzle.

More information about the game, its history and rules, etc, can be found
at www.sudoku.org.uk and websudoku.com. The first site has tips for solving Sudoku puzzles. I used these to formulate the program's strategy when it became clear that my original ideas just weren't quite up to snuff for difficult puzzles.

As far as I know, it can solve any Sudoku puzzle of the normal type. (Not the ones with an X.) If you find a valid, solveable puzzle that it can't figure out,
email me with the details. I haven't tested it out very carefully, so bugs are probable....

The Java Code

Written using the Eclipse IDE.

SudokuApp.java - Defines the applet, buttons, etc.

SudokuGame.java - Defines the puzzle, strategy, etc.