FEN with black position is not recognized as that

[mliebelt]

FEN with black position is not recognized as that

[mliebelt]

I will try to reproduce your problem in an example, and then try to find the reason for it. FEN has the information which color has to move, I don't remember, if I have used that information.

[calvicius]

thanks for your interest.
I think to remember that chessboardjs didn't ocupate about the sides to play and castles, so it only treats (i believe it) with fen shorted like "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR" type, nor about w or b, nor KQkq. The real FEN is treated by chess.js

I detail below a short code made for my own use in wich var game : new Chess() receives a FEN from an input form, and then it will be treated for emscripten stockfish :
regards y thanks in advance.

pd: the system does not permit me to paste the original code - if you are interested, please tell me ando sure I will send it.

[mliebelt]

I have reproduced your problem, but I have no fix yet. I have added the gist https://gist.github.com/mliebelt/139d3cdff816160e1e0c that contains two examples that should both work, one with only viewing games, the other for editing games. As you can see there, starting not from the initial position is currently not supported at all, but should be. It is possible to create a board (pgnBoard) with a different position, and this works equally well with setting up pgnView and pgnEdit. However, making moves not from the initial position (where white should start) is not supported. So I have to fix that first ...

[mliebelt]

See the example as part of the documentation how to use it. When you hover withe the mouse over the black pieces, you see that only the black pieces are allowed to move here.

[mliebelt]

Seems to be a bug again, have to have a look, what the problem is. The symptom is the following:

• Have a FEN string with black to move.
• Use edit mode.
• Then you are able to play the defined moves, but are not able to start new ones.