Initial setup

The board has 10 x 10 squares.

Pieces

Marshall

It combines the move of Rook and Knight. It can be found in many, many chess variants since Carrera, Bird, Capablanca and many others like Grand Chess or Gothic Chess. (under many other names: Champion, Guard, Empress, Concubine, Chancellor, etc. The later is sometimes preferred, however it is confusing since Capablanca used it once for R+N and once for B+N. It is an Elephant in Seirawan Chess).

Archbishop

It combines the move of Bishop and Knight. It can be found in many, many chess variants since Carrera, Bird, Capablanca, Modern and many others like Grand Chess or Gothic Chess. (under many other names: Centaur, Minister, Equerry, Janus, Archbishop, Princess, Chancellor, etc. It is a Hawk in Seirawan Chess).

Amazon

Strongest piece on the board, it combines the move of Queen and Knight. It was used in the Turkish-Indian Grand Chess (as a Giraffe).

Centaur

it is another compound piece that moves as a Knight or a non-royal King.

Admiral

it is another compound piece that moves as a Rook or a non-royal King. That means that it is a Rook that can also step one space diagonally.

Missionary

it is another compound piece that moves as a Bishop or a non-royal King. That means that it is a Bishop that can also step one space orthogonally.

King

Moves as in usual Chess but castle 2 or 3 squares away with the rook.

Queen

Exactly as in usual Chess.

Bishop

Exactly as in usual Chess.

Knight

Moves as in usual Chess.

Rook

Exactly as in usual Chess.

Extra Rules

Pawns reaching the 10th rank must promote to any of the other non-royal pieces.

The King can castle with the Rook, and then moves 2 squares in the direction of the latter.