火星象棋(Jetan Chess)是英国小说家埃德加·赖斯·巴勒斯在1922年在小说《火星棋子》()中提出的象棋类游戏。该书的第二章说明了游戏的大致规则，并且在第十七章还描述了一场对局的一部分。
The Panthans, which are represented as warriors with one feather, may move one space in any direction except backward; the Thoats, mounted warriors with three feathers, may move one straight and one diagonal, and may jump intervening pieces; Warriors, foot soldiers with two feathers, straight in any direction, or diagonally, two spaces; Padwars, lieutenants wearing two feathers, two diagonal in any direction, or combination; Dwars, captains wearing three feathers, three spaces straight in any direction, or combination; Fliers, represented by a propellor with three blades, three spaces in any direction, or combination, diagonally, and may jump intervening pieces; the Chief, indicated by a diadem with ten jewels, three spaces in any direction, straight, or diagonal; Princess, diadem with a single jewel, same as Chief, and can jump intervening pieces.
The game is won when a player places any of his pieces on the same square with his opponent's Princess, or when a Chief takes a Chief. It is drawn when a Chief is taken by any opposing piece other than the opposing Chief; or when both sides have been reduced to three pieces, or less, of equal value, and the game is not terminated in the following ten moves, five apiece. This is but a general outline of the game, briefly stated.
火星象棋使用10x10橘黑色相间的方格棋盘。
每方各有20枚棋子，分别为1个长官；1个公主；2个飞官；2个上尉；2个中尉；2个武士；2个骑士和8个步兵。游戏开始前，双方将棋子照以下方式布置于自己的底线。
移动两格或三格的棋子在移动时可以随意变换方向，但同一个回合内不可重复经过同个格子且必需走满规定的步数。公主、飞官和骑士移动时能越过中途遇到的棋子，而其他棋子若选择的路径上有棋子则被阻挡不能移动。除了公主以外，所有的棋子移动后若和敌方的棋子占据同一个格子皆吃掉该敌棋子。
为了减少和局，也有废弃原先版本和局规则的玩法。
https://www.zillions-of-games.com/cgi-bin/zilligames/submissions.cgi?do=show;id=519
