This page can be used to solve or generate sudoku puzzles.
It uses Javascript to do the computation. Press the "Create" button to
create a random puzzle. Press the "Create Four" button to get four puzzles
on a printer-friendly page.
Enter numbers into the squares and press "Solve" to solve puzzles. If
there are multiple solutions to the puzzle, a random solution is chosen.
You will also be told if no solution is possible.