Currently, all pawn promotions default to queens :(

A separate analysis mode with UCI engine that duplicates the current position while in training (what chesstempo already has if you have looked at this) in order to allow you to investigate variations why a certain move is wrong

Feedback from a user:

"I noticed the problems that come with building a repertoire that has multiple responses from yourself, where you basically choose 1 random 'correct' response while studying. I think it would be very powerful to support multiple correct answers per response so that a ton of different variations can be practiced without having to build and switch repertoires. Loving the tool as is though!"

This is a feature that ChessTempo supports in their opening trainer. In study mode, if the user is prompted with a position that has two correct answers, they should be able to play either of them. Then the line would continue from whichever move the user chose. If the user does not choose any correct move, we could hint all of the correct options.

Although it's possible to have this using scid and chessbase it's really convenient to have this in studyopenings.com.

Option 1: Have a opening preset opening explorer already on studyopenings.com like chesstempo already does
Option2: allow user to import a database of games and view the opening moves as a tree

Referring to this (2019)
#2
This solution only warns you of permanent deletion if you press tie x on the repository list.

If you have a repository opened and you click to the first move, then on the trashcan, the complete repository gets deleted without warning or possibility to undo.

I lost a huge repository on the stafford gambit, plz fix.

@jven what do you think about this? Add a button to open lichess analysis board using the current position FEN like this
https://lichess.org/analysis/rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR%20w%20KQkq%20-%200%202

This is an easy way to resolve #11 & #12

Could you

• add registration with GitHub

• lax the requirements for the password.

  • Do not heavily restrict or require the length of the password
  • Do not require or disallow different case
  • Do not require or disallow special characters

  Whenever you do one of these things, you may break my password scheme. Then I have to write the password down. Despite being unsafe, defying the purpose, it burdens work on me every time I log in, because I have to look it up.

On import, we should be able to read the repertoire name from some PGN header, if it exists. If it doesn't, we can fallback to the "PGN imported on DATE:TIME" title we currently use.

We need to make sure that on PGN export, we also set this header with the repertoire name.

Would be nice to see the repertoire moves on the board.

For large repertoires, this computation of move tree -> list of lines is slow.

Really awesome tool you created. Exactly what I was looking for.

I was able to import 1 pgn successfully. The other is having a lot of problems (even though it came from chessable). I condensed it as much as possible to get it to allow to be imported, but even these 2 lines alone are throwing errors about illegal moves:

[White "103"]

1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. e3 e4 6. d3 Bb4 7. Nge2 Ne5 8. dxe4

[White "104"]

1. c4 e5 2. g3 Nc6 3. Bg2 f5 4. Nc3 Nf6 5. e3 e4 6. d3 Bb4 7. Nge2 d5 8. O-O

Maybe I'm missing the problem?

Thanks

Have newest stockfish engine available on your website.

If possible with the UCI engine allow to play against engine mode to create openings.

Also, if possible allow UCI engine to pick random moves in openings (not necessarily the best move the engine has calculated)

Indicates on website that training is done by the program that randomly selects your opponents reply. Would be great if the program picked a reply by your opponent based on a smart selection, which would be based on the percentage you got the variation correct and incorrect.

Need to enable comments or a hint section to enter while create repertoire. Also, during training need to be able to have the comment/hint section hidden and open it whenever the user needs it

Right now deleting a move and deleting a repertoire are irreversible actions so accidentally doing them can lose a lot of data.

Either add an "Are you sure?" warning or make these actions undoable.

We only recently started reporting this statistic in Study mode: 47beb9d

After some amount of time when this statistic starts to be populated in prod, we can add the metric in Evaluate mode.

Feedback from user: "Have the option to change or turn off the "correct move" response (just audio or a check mark or something) as for me personally the yellow border flashing is distracting and hurts my eyes a little."

Either change it for everyone or add a user preference.

It would really speed things up for me. Thanks for the great app!

Easier first step is to support entirely overwriting a repertoire with a PGN file (maybe initiated by a link from the "empty repertoire" message in Build mode).

Need a little more thought to support adding lines from a PGN import to an existing repertoire.

Maybe as simple as tweaking some CSS for mobile browsers.

From reddit: Also can we get larger arrows on the botto[m].. they are really small on mobile

Aside from UI changes, we'd also need to write the theme preferences for the user to the database so they persist across sessions.

This uses chessground, which is licensed as GPL 3.0. This means any derivative work must also be released as GPL 3.0, and that includes this repository.

MIT is open source, but it's not free software.

importing a pgn with a valid move says its an illegal move

it says Nge2 is not a legal move, but its a legal move, Nce2 is not a legal move

Use case: I'm studying a line but I´m not convinced, so I click the build button and I will get redirected to the end of that line so I can edit it. Currently it´s just go to the start

From Reddit:

"I did have a bit more feedback (I actually gave feedback before about multiple correct answers). It appears that when I'm in Study mode, it will go through all of the possible lines, which is great! Would it be possible to give some sort of signal that I've completed all lines before it starts another random set?"

It would be nice to be able to grab a piece before the computer has moved.
Sometimes I want to move to quickly and grab a piece do the next move before the computer has made its move. But everytime it is annoying because I cannot grab the piece and so I have to grab it again after the computer moved.
Even better would be the possibility to premove.

For engine analysis etc

From Reddit: I'd like the notation to be slightly more clear with variations. There's an indent, but it's still a little tough on the eyes. I'd pursue something similar to the lichess study layout.

Some screenshots:

Lichess

ChessTempo

I'm annoyed by how scrolling works oppositely to how it works on Lichess for instance. If you scroll down there you move forward, down the moves list. Maybe change that altogether to match common practice, or add a little user preferences section to allow user to decide? (I love the site btw!)

Currently, if i played through a line (studying), i can't go back to that line but have to play through all lines in a repertoire at once. If I go back to review/build and then back to study, I start at the beginning.

Could you build something like a list of numbers for each line, which one can click on to play?

Anyway great tool, thx for building it.

If I try to import:

1. Nf3

no problems. But the following errors:

1. Ngf3

Some PGN sources will overspecify moves when one piece is in check, and this can trip me up

One user noted they have 15+ repertoires. It would be very useful for them to sort them how they want so the repertoires are easier to find.

Similar to what chess position trainer already has, have a percentage meter next to the opening to show a percentage of how much of the opening you memorized.

Something new and into the future that no opening trainer software currently does. In order to understand openings and not just memorize them you not only need to be able to know WHY certain moves are good but WHY all the other moves are bad and the trainer currently says any move not entered into the repertoire is incorrect, which does makes sense. However, a feature that allows you to comment and store moves for bad moves so you understand why the other moves not in your repertoire are bad and visually see the bad variations on the board using analysis mode would be really great!

From user feedback: "Hi! Great app :) For feedback it would be great if the study mode would start variations from the point that they deviate from the main line. Right now the user has to move from move #1 for every line."

This could be addressed by allowing the user to say "study all variations from this PGN". Chesstempo supports this.

Right now renaming a repertoire will send a request to the server for each keystroke by the user (in order to update the name in the picker as well as in the input element). Should throttle/debounce these events for efficiency.