Play Othello in your browswer! Javascript Othello, ported from Peter Norvig's Lisp code . Here is his license, so I will put this under the same thing.
Reset stops the game, and clears everything. Undo can only undo the most recent move.
this whole thing is a work in progress. The algorithm is only the simplest one from the book, and the UI is an experiment in Javascript and JQuery (from a non-web, non-GUI developer, at that).