The flash cards training screen uses a spaced repetition system to help you memorize the best move for each position of the opening.
Spaced repetition is a learning technique that incorporates increasing intervals of time between subsequent review of previously learned positions in order to exploit the psychological spacing effect.
All positions of the opening will be tested as a flash cards in random order. However a position for which you had bad results in the past will be tested more often than a position for which you have a good score.
As your train, your score for each position is displayed and if a comment has been entered for a position it is also displayed. The last five results for that position are displayed.
Shows you the best move for that position, the one you entered when you created the opening.
Allows you to activate the "favorite positions only" mode and train only the favorite positions you have defined when you created the opening.
LIMIT: Allows you to set the upper limit (move number) for the positions you want to train on. This setting is useful when you just started learning an opening and want to train only on the first positions.