This free, web-based chess tool allows anyone to easily set up a chess or chess960 board position, enter a series of moves, add game details such as player names, location, etc., and then output the game in PGN format (Portable Game Notation—the web standard for presentation of chess games).
The resulting game can be "played back" with a game viewer that can be easily embedded in any document such as a web page, blog, forum post, or email message. You can also easily generate an animated graphic of the game (GIF format).
In addition to embedding the game output into your web page or blog, you can also embed the PGN editor itself!
For detailed instructions on how to use the PGN Editor, consult the help file or watch the video below.