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Mystique Chess

brings this to mind as well
https://www.chess.com/clubs/forum/view/ahab-chess
not sure i understand the process of revealing the piece's identity, or why that should ever happen.

i think the author of this post intends for you to chose your "Mystique" piece and set it to another type of piece, in the example ' "I reveal my Mystique Piece as a Bishop" ' the piece (say it was a knight) now moves like a bishop, this I have to say is kind of nonsensical, you would Always chose one of your pawns and turn it into a royal queen from move 1. any other playstyle would be a blunder. (yes, you give up the ability to hide your royal, but it is already almost impossible to checkmate a queen, seems like Ahab Chess, but inherently more forced.
1. Each player starts with 16 pieces, consisting of one king, one queen, two rooks, two knights, two bishops, and eight pawns.
2. Before the game begins, each player secretly chooses one piece on the board that will be their "Mystique Piece." The identity of the Mystique Piece is known only to the player who chose it and is kept hidden from the opponent.
3. The Mystique Piece moves and captures like a regular chess piece of its type. However, its identity remains concealed until it is revealed during gameplay.
4. The other pieces on the board move and capture as in traditional chess.
5. Players take turns moving their pieces, starting with White.
6. A player can choose to reveal their Mystique Piece at any time during their turn by announcing its type (e.g., "I reveal my Mystique Piece as a Bishop").
7. Once revealed, the Mystique Piece retains its revealed identity for the rest of the game.
8. The revealed Mystique Piece moves and captures according to its true nature.
9. The objective of the game is to capture Mystique Piece.
10. The game can also end in a draw if both players agree, if there is a stalemate, or if neither player has enough pieces to achieve checkmate.
In Mystique Chess, the presence of the hidden Mystique Piece adds an element of uncertainty and strategy to the gameplay. Players must carefully consider the possible identity of their opponent's Mystique Piece and adapt their strategies accordingly. The game unfolds with surprises and revelations as the Mystique Pieces are unveiled.
I hope you enjoy playing Mystique Chess with these rules! Let me know if you have any other questions or if there is anything else I can assist you with.