Instead of writing about C+, data compression, or my usual raft of interesting topics, I’ve been busy for the past few weeks writing a new game, Rack Master. Rack Master is a free training program that gives you a fresh puzzle every day. Your goal is to make the best scores out of five racks of letters, using the scoring rules from games like Scrabble and Words for friends.

There are four levels, with varying degrees of difficulty. See what you think, give feedback, and by all means, pass the link along to any friends who are word enthusiasts.

- Mark