FEN Support

[corlaez]

Is there interest in supporting FEN? I think it would be a convenient way to store state (with the tradeoff of loosing the history). I like how compact FEN can be.

I was thinking in writing my own but I couldn't find a way to flip castling rights in jchess API. Any thoughts or comments on this?

[ctabin]

@corlaez Can you please give a link about FEN ? I don't know anything about it. Is it a storage format like PGN ?

[ctabin]

Oh right, by googling it, there is some simple explanation. It looks interesting and I might add support for it (but I don't have any foreseeable future to implement it).

So feel free to submit a PR if you feel confident about implementing it.

[corlaez]

It is not a blocker for me so no attempts for now. I will write here if I give it a try later.

[corlaez]

To be more specific with the FEN features I consider needed when talking about FEN support are:

1. Ability to create a jchess game (or override it's state) based on a FEN string
2. Ability to export a game to a FEN string