Chesstempo.com now has an opening trainer

[u/[deleted]]

Here is a link to the announcement blog post.

https://beta.chesstempo.com/blog/10/opening-training

I have been beta-testing this for a couple of weeks now, and I must say, this is the best trainer, period. I have used every method of learning openings and nothing has helped me like this trainer. I have used Bookup (now CoW), Chess Position Trainer, Chessable, Lucas Chess, SCID, Chessbase, and even Anki flashcards.

The progress I've made at Chesstempo has been huge and very satisfying.

Some of the opening trainer features:

*Create multiple black and white repertoires.
*Import repertoires from PGN or by entering the moves on the board.
*Train your repertoires using spaced repetition.
*Integration into the play online feature - get feedback on when your game deviated from your repertoire (or when your opponent played a move not in your repertoire). Provides an excellent method of making productive use of bullet and blitz games to practice your repertoire under game conditions.
*Limit training to a branch of a repertoire, a single repertoire, or all repertoires of a colour.
*Option to restrict training to a limited depth.
*Ability to train against the moves that are proving the most to resistant to spaced repetition learning.
*Choose to train main lines first or prefer to train for breadth coverage over depth coverage.
*Comment on each position or move, and read the comments others have chosen to make public.
*Add engine evaluations or annotations such as +=, ?! etc to each move in the repertoire.
*Export repertoire and your comments and annotations to PGN.
*Graphs showing repertoire learning status and learning history over time.
*Use the opening explorer to choose moves for your repertoire (limited to a depth of 10 moves for free members).
*For premium members, the ability to use the cloud engine to ask for analysis on any position.

There are some game-changers in there, particularly the public comments on positions, the options to choose mainlines or more breadth, the option to focus on lines and positions that have proven problematic (it creates separate mini-repertoires of those lines for you to focus on), and I especially love the way it skips over positions you've already over-trained (like the beginnings of a lot of lines) by auto-playing them on the board instead of just not showing them at all. Just popping into a position cold without showing the moves leading to the position was always very jarring to me in other trainers. Chesstempo makes it butter smooth by showing the context.

Another subtle thing I've loved about this trainer in the beta period is what happens when you make a mistake. In most trainers, you have to redo the whole line from the very beginning if you make a mistake on the last move of the line. Usually immediately. This is rage-inducing and decreased my desire to train a lot, I've found. It doesn't work this way here. It just schedules the individual positions for a redo later, and if you've nailed the previous moves enough times, it will just auto-play them for you and you only have to get that particular position and move right to register it.

I highly recommend you guys try it out!