Chess Openings

Most opening tools just give you a list of moves to memorise. That works until your opponent goes off book on move six and you're lost, because you learned the moves and never the reasons behind them.

This works the other way round. Every line comes with why it's played and what it's protecting against, and the drills keep bringing you back to the lines you get wrong instead of the ones you already know.

This one's just for fun. There's no plan to make money from it.