Support 3check pasting of other FEN variants

ml-research / liground

A free, open-source and modern Chess Variant Analysis GUI for the 21st century

GNU Affero General Public License v3.0

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Closed magehrke closed 4 months ago

magehrke commented 3 years ago

LiGround currently only supporst 3check FENs like this:

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 3+3 0 1
It would be nice, if LiGround would also support the same position, but in a slightly different FEN that is widely used (e.g. by lichess.org). In this notation the same position would be

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1 +0+0

ianfab commented 3 years ago

The FEN parsing in the core engine actually already supports that, so I assume it is only rejected in the ffishjs FEN validation.

ianfab commented 2 years ago

FEN validation will support it in the next ffishjs version: https://github.com/ianfab/Fairy-Stockfish/pull/398