Origins: Ruy Lopez: Book I: Black Avoids 3...a6

Today's openings are reruns of an old sitcom that we have all seen a hundred times before, while for players in the past, life on the chess board was wild, unexplored territory. Learning the details of that gigantic entity, the Ruy Lopez (from either side), is on par with the time that hateful 7th-grade teacher made us memorize the capital cities of every country in the world--in alphabetical order!
The Origins series is an attempt at a "big picture" view that displays the interlocking parts...