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The Chess Variant Pages

This page is written by the game's inventor, Larry Smith.

The Demon Game

This is the non-oriental version of MoQi. It utilizes the basic piece-types of that particular game but applies certain rules from the Mad Queen variant.


[m][n][c][ ][a][k][ ][c][n][m]
[r][ ][ ][b][q][q][b][ ][ ][r]
[ ][ ][ ][ ][ ][ ][ ][ ][ ][ ]
[ ][ ][ ][ ][ ][ ][ ][ ][ ][ ]
[ ][ ][ ][ ][ ][ ][ ][ ][ ][ ]
[ ][ ][ ][ ][ ][ ][ ][ ][ ][ ]
[R][ ][ ][B][Q][Q][B][ ][ ][R]
[M][N][C][ ][A][K][ ][C][N][M]


Pawns(P) step one forward orthogonal without capture or one forward diagonal with capture. May perform an initial two step forward orthogonal move. En passant rules apply. Freely promotes upon reaching the far rank.

Knight(N) leaps one orthogonal then one diagonal to a cell not adjacent.

Bishop(B) slides diagonal.

Rook(R) slides orthogonal.

Queen(Q) combines Bishop(B) and Rook(R).

Cardinal(C) combines Knight(N) and Bishop(B).

Marshal(M) combines Knight(N) and Rook(R).

Amazon(A) combines Knight(N) and Queen(Q).

King(K) steps one orthogonal or one diagonal. May perform a castling move with either Marshal, if both pieces have previously not been moved and the the King is not under threat. There should be no other pieces between the King and the target Marshal. The King moves three un-attacked cells toward the target Marshal, the Marshal leaps adjacent the King's opposite side.


The game is won by checkmating the opposing King.


An alternative initial setup may include transposing Black's King and Amazon to create a non-mirrored pattern. And/or moving the Knights forward one rank to allow them early access to the playing field.

This 'user submitted' page is a collaboration between the posting user and the Chess Variant Pages. Registered contributors to the Chess Variant Pages have the ability to post their own works, subject to review and editing by the Chess Variant Pages Editorial Staff.

By Larry L. Smith.
Web page created: 2006-05-03. Web page last updated: 2006-05-03