Dark Chess is a variant of the traditional chess
You can only see your own pieces and spaces where they can move to. All
other spaces are invisible.
The object is to capture the opponent's King.
There are no check or checkmate conditions. A King can move into and
out of check freely. You may not be able to see enough of the board to
know if you are moving into check.
Castling and en passant captures are allowed.
Everything else is the same as normal chess.
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