DIAMOND VS SITTUYIN

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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Sittuyin (Burmese: စစ်တုရင်), also known as Burmese chess, is a variant of chess that is a direct offspring of the Indian game of chaturanga which arrived in 8th century AD. Sit is the modern Burmese word for army or war ; the word sittuyin can be translated as representation of the four characteristics of army—chariot, elephant, cavalry and infantry. In its native land the game has been largely overshadowed by Western (international) chess, although it remains popular in the northwest regions. The sittuyin board consists of 64 squares, 8 rows and 8 columns, without alternating colors. It also consists of two diagonal lines across the board known as sit-ke-myin (general's lines). Only feudal lords (pawns) are on the board in the initial position. The game starts with the Red player (depicted here having white pieces), followed by the Black player, placing their other pieces arbitrarily on their own halves of the board (known as sit-tee or troops deployment): chariots can be put on any square on the back rank. In official tournaments, a small curtain is used on the middle of the board to prevent the players seeing each other's deployment during the sit-tee phase. One of the possible game openings is shown in the diagram. Feudal lords promote to general when they reach diagonal lines marked on the board. The promotion is possible only if that player's general has been captured. If the player has a feudal lord on a promotion square and his or her general is no longer on the board, the player can (if he or she wishes to) promote the feudal lord to general instead of making a move. A feudal lord which passes the promotion square cannot promote anymore.

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