I wrote a blog post about the algorithm over here: http://neilk.net/blog/2013/04/16/letterpwn-a-nodejs-based-letterpress-solver/ http://neilk.net/blog/2013/04/

I wrote a blog post about the algorithm over here: http://neilk.net/blog/2013/04/16/letterpwn-a-nodejs-based-letterpress-solver/ http://neilk.net/blog/2013/04/16/letterpwn-a-nodejs-based-le... Maybe the concurrency techniques for a computation-heavy service in Node.JS are of more general interest, but I'm still working on a writeup for that.