DIAMOND VS XIANGQI

Diamond is a two-player abstract strategy board game invented by Larry Back. The invention was inspired by the game Kensington, which uses a similar board pattern and game objective. Rules for Diamond were conceived in 1985 and finalized in 1994. Diamond introduces a new board geometry and neutral pieces, with the aim of enhancing the game dynamic and lowering the potential for draws. Diamond was featured in the February 2013 issue of Games magazine. The Diamond gameboard consists of interlocking squares and triangles. White and Black each control 12 game pieces of their own color. Neutral pieces (red-colored in the diagrams) enter the game via captures. The pieces are played on the line intersections (called points, as in Go). White and black (but not red) pieces can move along straight lines to adjacent unoccupied points. A player wins by being the first to occupy all four corners (points) of a board square with their pieces. Capturing moves are possible in the Movement phase. If the points of a triangle contain exactly one white and one black piece, either player can capture the opponent piece by occupying the remaining open point ("cornering" the enemy piece on the triangle). The captured piece can be cornered on one triangle (see Example 1), or simultaneously cornered on two different triangles (Example 4). The captured piece is immediately removed from the game and replaced on its point by a neutral piece. If a move simultaneously corners two opponent pieces on two different triangles, then neither enemy piece is captured (Examples 2 and 3). A piece can move safely to a triangle point even if the other two points of the triangle are occupied by enemy pieces (Example 5).

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Xiangqi (Chinese: 象棋; pinyin: xiàngqí; Wade–Giles: Hsiang ch'i; English: /ˈʃɑːŋtʃi/), also called Chinese chess or Elephant chess, is a strategy board game for two players. It is one of the most popular board games in China, and is in the same family as Western chess, chaturanga, shogi, Indian chess and janggi. Besides China and areas with significant ethnic Chinese communities, xiangqi is also a popular pastime in Vietnam, where it is known as cờ tướng. The game represents a battle between two armies, with the object of capturing the enemy's general (king). Distinctive features of xiangqi include the cannon (pao), which must jump to capture; a rule prohibiting the generals from facing each other directly; areas on the board called the river and palace, which restrict the movement of some pieces (but enhance that of others); and placement of the pieces on the intersections of the board lines, rather than within the squares. Xiangqi is played on a board nine lines wide and ten lines long. As in the game Go (圍碁; or Wei ch'i 圍棋), the pieces are placed on the intersections, which are known as points. The vertical lines are known as files (Chinese: 路; pinyin: lù; "road"), and the horizontal lines are known as ranks (Chinese: 線/綫; pinyin: xiàn; "line"). Centred at the first to third and eighth to tenth ranks of the board are two zones, each three points by three points, demarcated by two diagonal lines connecting opposite corners and intersecting at the centre point. Each of these areas is known as 宮 About this soundgōng, a castle. Dividing the two opposing sides, between the fifth and sixth ranks, is 河 hé, the "river". The river is often marked with the phrases 楚河 About this soundchǔ hé, meaning "River of the Chu ", and 漢界 About this soundhàn jiè, meaning "Border of the Han", a reference to the Chu–Han War. Although the river (or Hanchu boundary) provides a visual division between the two sides, only two pieces are affected by its presence: soldiers have an enhanced move after crossing the river, and elephants cannot cross it. The starting points of the soldiers and cannons are usually, but not always, marked with small crosses.

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