DIAMOND VS KAMISADO

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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Kamisado is an abstract strategy board game for two players that's played on an 8x8 multicoloured board. Each player controls a set of eight octagonal dragon tower pieces. Each player's set of dragon towers contains a tower to match each of the colours that appear on the squares of the board (i.e., a brown tower, a green tower, etc.). One player's towers have gold dragons mounted on the top, while the other player's towers are topped with black dragons. In an interview, designer Peter Burley said that the design of Kamisado dated back to a chance observation in a men's room in the 1970s. "I noticed that the floor had an interesting pattern of small colored tiles", he said. "I mentally made a note that this could possibly be used as a basis for a board game – this is something that I do quite a lot, whenever I see something a bit different. It must have made a deep impression on this occasion, however, because that night I had a vivid dream involving this tile pattern, and somehow the notion of 'whatever colour you land on, your opponent must move a piece that matches this'. I guess my subconscious mind had been working on this and sorted it out while I was asleep." The players’ towers start the game on the row nearest to them. The players take turns moving one tower any number of spaces in a straight line, either directly forwards or diagonally forwards, but not into or through a square already containing another dragon tower. The player with the black dragons moves first and may choose any tower. From this point onwards, each player must move the dragon tower that matches the colour of the square that the opponent's last move finished on. The object of the game is to reach your opponent's Home Row with one of your dragon towers. The first player to achieve this goal is the winner of the round. Games may be played as single rounds, or as more advanced ‘Match’ formats. Matches are played up to 3 points (Standard Match), 7 points (Long Match) or 15 points (Marathon Match). During a match, each time a round is won, a special ‘Sumo Ring’ is added to the dragon tower that has fought its way through to the opponent's Home Row. The sumo rings provide the scoring system for the game, and also endow special powers to the dragon towers that carry them. These towers are known as Sumo towers and have the ability to push opponent's towers back one space, by using a move known as a ‘Sumo Push’.

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