Practice Chess Openings with Anki Flashcards
Openings are crucial for making progress in chess. It is, unfortunately, not sufficient to learn your own favourite variants because you are not alone on the board. You need a response for all moves of your opponent and you have to memorize these responses. I find it pretty hard to play these opening variants with myself until I remember them. So why not give flashcards with spaced repetition, the classical learning tool a try?