Awesome
sudoku
Sudoku generator and solver for node.js and Web.
Live demo
http://shnapps.dachev.com/sudoku
Installation
$ npm install sudoku
Usage
var sudoku = require('sudoku');
var puzzle = sudoku.makepuzzle();
var solution = sudoku.solvepuzzle(puzzle);
var difficulty = sudoku.ratepuzzle(puzzle, 4);
OR
import { makepuzzle, solvepuzzle, ratepuzzle } from "sudoku";
License
Copyright 2010, Blagovest Dachev.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.