talen314:

Protected Chess--interesting idea!

Perhaps a modified version like.....

Queen: Moves like a General (Queen + Knight) if unprotected by a friendly piece. Moves like a Queen if protected by a friendly piece.
Rook: Moves like a Marshall (Rook + Knight) if unprotected. Moves like a Rook if protected.
Bishop: Moves like a Cardinal (Bishop + Knight) if unprotected.  Moves like a Bishop if protected.
Knight: Moves like a Cardinal (Bishop + Knight) if unprotected.  Moves like a Knight if protected.

This clever idea of pieces that assume different powers at different times is also present in the Chess Variant that I've lobbied for on this site -- Inheritance Chess: Pieces have inheritance powers.  Pieces of a given color on the same file inherit the movement powers of one another.  These powers do not stay with each piece for the entire game; the inherited powers are only inherited while the pieces are on the same file as one another.  Also, the rook pawns begin on their third rank, and castling and en passant capturing are not permitted.