Chinese Chess (中国象棋) app for iPhone and iPad

象棋，是中國傳統的二人對弈棋類遊戲。其他類似的有朝鮮象棋及日本將棋。为与國際象棋（西洋棋）等區別，又稱中國象棋，主要流行于華人及越南人社区。是首届世界智力运动会正式比赛項目。
象棋的棋盤由九條直線和十條橫線相交而成。棋子放在各條線的相交點上，並在線上移動。棋盤中間的一行沒有畫上直線，稱為「河界」，通常標上楚河漢界字樣，源自楚漢相爭時的鴻溝，或標上「觀棋不語真君子，起手無回大丈夫」等字樣。
現行的中式記錄方法是：九條直線，紅方從右到左用漢字「一」至「九」表示，黑方在自己的那一面從右到左用數字「1」至「9」表示。也就是說，紅方的直線「一」就是黑方的直線「9」，以此類推。第四條直線（或第 6 條直線）和第六條直線（或第 4 條直線）稱為「兩肋」、「兩肋線」，簡稱「肋」。棋盤上，劃有斜交叉線而構成「米」字形方格的地方，雙方各有一塊，稱為「九宮格」，簡稱「九宮」，是將/帥和士/仕活動的區域。
棋子的顏色分紅和黑或（蓝、绿），雙方各有 16 隻棋子：
分別是一隻將（帥）、二隻士（仕）、二隻象（相）、二隻車（俥）、二隻馬（傌）、二隻砲（炮）、五隻卒（兵）。
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Xiangqi (Chinese: 象棋; pinyin: Xiàngqí) is a two-player Chinese board game in the same family as Western chess, chaturanga, shogi, Indian chess and janggi. The present-day form of Xiangqi originated in China and is therefore commonly called Chinese chess in English.
The game represents a battle between two armies, with the object of capturing the enemys "general" piece. Xiangqi is one of the most popular board games in China. Distinctive features of Xiangqi include the unique movement of the pao ("cannon") piece, a rule prohibiting the generals (similar to chess kings) from facing each other directly, and the river and palace board features, which restrict the movement of some pieces.
Besides China and areas with significant ethnic Chinese communities, Xiangqi is also a popular pastime in Vietnam.
Its Chinese name can be treated as meaning "Image Game" or "Elephant Game":
象 means primarily "elephant" and is derived from a stylized drawing of an elephant; it also means "image", as a jiajie (re-use for another word which was pronounced the same).
棋 means "game".
Xiangqi contains features which are not in Indian chess: the river, the palace, and putting the pieces on the corners of the squares. These features may have come from an earlier Chinese board game (perhaps a war-type game) which was also called 象棋 (Xiangqi). As in an astronomical context 象 sometimes means "constellation" (i.e. a figure made of stars), there were early Chinese theorizings (which Harold James Ruthven Murray followed and believed) that the older Xiangqi simulated the movements of stars and other celestial objects in the sky.