The opening details page shows information relevant to a particular opening.
When the opening details page loads, the move list is initialized with the moves in the main line of the
opening. The board is shown in the state that exists after the last move in the opening is played, and a game
search is automatically performed to show all the games that reached that position.
The comments tab allows you to read and add comments relevant to a particular opening.
The opening popularity graph shows the relative popularity of an opening across the time period
that it has been played. In order to factor out the increasing number of games recorded in
the modern period, the graph is based upon number of games per thousand in which the particular
opening was played in each year. This allows a more meaningful comparison of popularity over time.
