Gamehelpcchess

Commander Chess, or Cờ tư lệnh (literally "Chess Command") is a xiangqi variant created by Hải Quý Nguyễn.

Cờ tư lệnh is played with 38 pieces (19 per player) on a board that is 11 lines wide and 12 lines long. As in xiangqi, it is played on the vertices of the grid. The board is divided into two lang territories by a river in the middle of the board. The three files on one side of the board form the sea. The object of the game is to capture the opponent's Commander, or all units of a single division of the opponent's army.

The pieces on both sides, with their abbreviations, movements, and rules, are:

1 Commander (C): moves any distance orthogonally; captures 1 point orthogonally; may occupy Headquarters; may not "see" the opposing Commander on an open file

2 Infantry (In): 1 point orthogonally

2 Tanks (T): 2 points orthogonally; may capture on sea squares it cannot enter, remaining stationary; carries C, In, or M

1 Militia (M): 1 point orthogonally

2 Engineer (E): 1 point orthogonally; carries all pieces, only across river; controls airspace 1 point any direction

2 Artillery (A): 1–3 points any direction; crosses river only at reefs, by attacking, or carried

2 Anti-aircraft gun (Aa): 1 point orthogonally; may capture on sea squares it cannot enter; controls airspace 1 point any direction

1 Missile battery (Ms): 1–2 points orthogonally or 1 point diagonally; controls airspace as it moves

2 Air force (Af): 1–4 points any direction; may return to its departing point after capturing or carrying, unless capturing opposing Af; carries C, In, or M; destroyed immediately on passing through opposing airspace

2 Navy (N): 1-4 points any direction on sea, sea banks, and river banks; captures as it moves at sea; shoots 1–3 in any direction at land targets; controls airspace 1 point any direction

2 Headquarters (H): stationary and does not capture; may house only C; protects C, but not itself, from In, M, Aa, and Ms

General rules:

Pieces capture as they move, and never jump, unless noted. Pieces can cross the river but not occupy sea points unless noted. Pieces which check the opposing Commander are promoted, gaining special abilities.