Livingston Chess960 Computer World Championship.UCI engines: some engines tell chess GUIs that they support Chess960 via the option UCI_variant, others via UCI_Chess960.Variant name (in PGN file): some programs use the name “Fischerandom” but others may use “Chess960”.Some chess GUIs send castling moves as O-O, O-O-O (e.g., Arena) when some other ones send as own-Rook captures (e.g., Shredder GUI, WinBoard, Banksia GUI) such as d1e1. ![]() It needs to parse input, setup, and process correctly the castling statuses.įor other software such as chess GUIs which need to generate all initial positions, they can simply store all initial FENs or use some algorithms to generate them when needed.Ĭhess960 can use all chess notations with some caring about ambiguities: A chess software can easily support Chess960 with only a few changes.Ī typical chess engine can support any given position thus it can parse correctly any initial position. ![]() Many chess GUIs solved that difficulty/ambiguity by changing the way to make castling move: move the King to capture its own Rooks.Ĭhess960 is almost identical to chess, except for initial positions and the castling rule. However, for Chess960 sometimes they can’t move their King to two cells since the target cell may be still occupied by a piece and/or the distance between the King and the target cell may vary from 1 to 6 (not only 2 cells). For chess, players make a castling move by moving their Kings to two cells, left or right.
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