Game of Sudoku - Playing Board

This Sudoku playing board will help you solve the puzzles.

Instructions for Sudoku

1. The goal of the game is to choose a number for each square such that no digit appears twice in any row, column, or section.
2. Start a new game with your desired level of difficulty.
3. Click on a possibility to choose that number for the square. The possibility will be removed from other squares in the row, column, and section.
4. Hold down control, alt, or shift to and click on a possibility to remove the possibility from the square, but not mark the square.
5. Click on an assigned number to remove it from the square and put back any possibilities.
6. Use the colors however you wish. You may find it helpful to switch the color whenever you guess.

Your Sudoku Stats

Sudoku Game Board

Sudoku Source Code

You can see the source code for the JavaScript powering this web page be using the "view source" feature of yoru web browser. The sudoku puzzle generation is done on the server side by QQWing, a free open source sudoku solver and generator that was also written by Stephen Ostermiller.

This sudoku board makes solving puzzles much easier, is this cheating?

This Sudoku playing board should be helpful, but it doesn't solve the puzzles for you. It only enforces the basic rule of Sudoku: you may not put the same number twice into any row, column, or section. Even with this helpful page, it is still possible to choose numbers such that the puzzle can not be solved. Here, all the bookkeeping is done by the Sudoku playing board, freeing your brain up to do the more challenging leaps of logic. Even so, purists may want to stick to pencil and paper.

License

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 2 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.