Online Chess Tutorial On The Rules of Chess
By working on the five lessons available below, and by following the suggested order, chess rules will no longer hold secrets from you. You will demystify the chessboard, the different pieces, the way they move and their value. You will also go through the basic rules of the game and learn what is a check, a checkmate, as well as some special rules like the "en passant" capture, the promotion, castling, and how a game can end in a draw. You will be able to measure your progress by doing optional (but highly recommended) exercises at the end of each lesson.
If you rather want to learn the rules faster than the step-by-step method proposed further below, you can have a look at the quick reference guide explaining all key elements of the game in one page.