John Gollon, author of Chess Variations: Ancient, Regional, and Modern collected materials for a second book on chess variants, that was unfortunately never published. Part of his draft for his second book was sent to Eric Greenwood in 1976; Eric wrote in 1997 to me about what he received from Gollon. This variant was sent to Gollon by R. Douglas Wells from College Park, Maryland. This game clearly was inspired by Shatranj or one of its larger variants.
The game is played by two players on a board with eight rows and ten columns. Each player has a king, two rooks, two bishops, two knights, two elephants, one firzan, and ten pawns.
The opening setup is as follows.
King f1; Firzan e1; Rook a1, j1; Knight b1, i1; Bishop c1, h1; Elephant d1, g1; Pawn a2, b2, c2, d2, e2, f2, g2, h2, i2, j2.
King f8; Firzan e8; Rook a8, j8; Knight b8, i8; Bishop c8, h8; Elephant d8, g8; Pawn a7, b7, c7, d7, e7, f7, g7, h7, i7, j7.
The firzan moves one square diagonally. Elephants move one or two squares diagonally - they cannot jump. All other pieces move as in usual chess, except that pawns always promote to firzan when they reach the last row.
For castling there are the following three possibilities:
A player that is stalemated loses the game. All other rules are as in orthodox chess.