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Leap Frog, also known as Leapfrog, is a multi-player abstract strategy board game that was described by H.J.R. Murray in A History of Board Games Other Than Chess (1898) and attributes its origin to England. [1] [2] Several variants have been created (see Variants section) including one by Murray himself which utilizes different colored pieces with different point values. Several players can participate. In the traditional game, players take any piece on the board and use it to hop over and capture other pieces on the board. When no more pieces can be captured, the game ends, and the player with the most pieces wins the game. Murray includes it in the section called Clearance Games which includes the game Solitaire which it does resemble in many ways except that Solitaire is played by only one person.
Murray never stated that the moves are limited to orthogonal directions. [3] The game might still work with diagonal moves.
A rectangular board with 15 to 18 squares in length on each side is used. The pieces in the traditional variant are undifferentiated.
In Murray's variant, the pieces have different colors with different point values. The number of pieces per color is divided as follows: 1 green for every 2 red, for every 3 yellow, for every 4 white. In a 15 x 15 square board that would be 22 green, 45 red, 68 yellow, and 90 white pieces. Green pieces are worth 4 points, red pieces are worth 3 points, yellow pieces are worth 2 points, and white pieces are worth 1 point.
The game starts with all the pieces occupying all the squares (or holes) of the board. Only one piece may occupy a square (or hole). Similarly, in Murray's variant, the colored pieces are distributed randomly throughout the board occupying all the squares (or holes).
An online software variant by BrainKing called Froglet is similar to Murray's variant. [4] The only differences are that the size of the board is smaller (only a 12 x 12 square board), the order of play among the players is determined before the game commences and only the first player may remove a piece from anywhere on the board for their first move followed by capturing moves by the short leap thereafter by all players, and the color distribution among pieces is different (66 green pieces, 51 yellow pieces, 21 red pieces, and 6 blue pieces) with 1 point for a green, 2 points for a yellow, 3 points for a red, and 4 points for a blue. [4]
A variant of Chinese Checkers called Capture resembles the old variant of Leap Frog, except in Capture the six-pointed star-shaped board of Chinese Checkers is used, and specifically only the central hexagon region of the board. In addition, the central point of the board is vacant at the beginning of the game in Capture, whereas the board is completely filled in Leap Frog. [5]
Sternhalma, commonly known as Chinese checkers or Chinese chequers, is a strategy board game of German origin that can be played by two, three, four, or six people, playing individually or with partners. The game is a modern and simplified variation of the game Halma. "Complexity: requires no counting or spelling; even young children can play."
Checkers, also known as draughts, is a group of strategy board games for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces. Checkers is developed from alquerque. The term "checkers" derives from the checkered board which the game is played on, whereas "draughts" derives from the verb "to draw" or "to move".
Mak-yek is a two-player abstract strategy board game played in Thailand and Myanmar. Players move their pieces as in the rook in Chess and attempt to capture their opponent's pieces through custodian and intervention capture. The game may have been first described in literature by Captain James Low a writing contributor in the 1839 work Asiatic Researches; or, Transactions of the Society, Instituted in Bengal, For Inquiring into The History, The Antiquities, The Arts and Sciences, and Literature of Asian, Second Part of the Twentieth Volume in which he wrote chapter X On Siamese Literature and documented the game as Maak yék. Another early description of the game is by H.J.R. Murray in his 1913 work A History of Chess, and the game was written as Maak-yek.
Chaturanga is an ancient Indian strategy board game. While there is some uncertainty, the prevailing view among chess historians is that it is the common ancestor of the board games chess, xiangqi (Chinese), janggi (Korean), shogi (Japanese), sittuyin (Burmese), makruk (Thai), ouk chatrang (Cambodian) and modern Indian chess.
A fairy chess piece, variant chess piece, unorthodox chess piece, or heterodox chess piece is a chess piece not used in conventional chess but incorporated into certain chess variants and some chess problems. Compared to conventional pieces, fairy pieces vary mostly in the way they move, but they may also follow special rules for capturing, promotions, etc. Because of the distributed and uncoordinated nature of unorthodox chess development, the same piece can have different names, and different pieces can have the same name in various contexts. Most are symbolised as inverted or rotated icons of the standard pieces in diagrams, and the meanings of these "wildcards" must be defined in each context separately. Pieces invented for use in chess variants rather than problems sometimes instead have special icons designed for them, but with some exceptions, many of these are not used beyond the individual games for which they were invented.
Fox games are a category of asymmetric board games for two players, where one player is the fox and tries to eat the geese / sheep, and the opposing player directs the geese/sheep and attempts to trap the fox, or reach a destination on the board. In another variant, Fox and Hounds, the fox merely tries to evade the hounds. There are several versions known:
Turkish draughts (Armenian: շաշկի)(Arabic: دامە)(Kurmanji: دامە) is a variant of draughts (checkers) played in Turkey, Greece, Egypt, Kuwait, Lebanon, Syria, Jordan and several other locations around the Mediterranean Sea and Middle East.
Kōnane is a two-player strategy board game from Hawaii. It was invented by the ancient Hawaiian Polynesians. The game is played on a rectangular board. It begins with black and white counters filling the board in an alternating pattern. Players then hop over one another's pieces, capturing them similar to checkers. The first player unable to capture is the loser; their opponent is the winner.
Egara-guti is a two-player abstract strategy game from India, specifically from Central Provinces, and it was described by H.J.R. Murray in A History of Board-Games Other Than Chess (1952). The game is related to Draughts and even more so to Alquerque. Pieces are captured by leaping over them. Egara-Guti consists of a Lau kata kati board, but with the addition of two lines connecting the two triangles and running through them. Egara-guti belongs to a specific category of games called Indian War-games; some other games in this category are Lau kata kati, Dash-guti, Pretwa, Gol-skuish. All Indian War-games have one important thing in common, and that is that all the pieces are laid out on the grid patterned board in the beginning, with only one vacant point in the center. This forces the first move to be played on the central point, and captured by the other player's piece.
Peralikatuma is a two-player abstract strategy board game from Sri Lanka. It is a game related to draughts (checkers) and Alquerque as players hop over one another's pieces when capturing them. The game was documented by Henry Parker in Ancient Ceylon: An Account of the Aborigines and of Part of the Early Civilisation (1909) with the name Perali Kotuwa or the War Enclosure. Parker mentions that it is also played in India. It closely resembles another game from Sri Lanka called Kotu Ellima. The two games use the same board which consist of a standard Alquerque board but with four triangular boards attach to its four sides. The only difference between the two games is in the number of pieces. In Peralikatuma, each player has 23 pieces. In Kotu Ellima, each player has 24 pieces.
Armenian draughts, or Tama, is a variant of draughts played in Armenia. The rules are similar to Dama. Armenian draughts, however, allows for diagonal movement.
Sixteen Soldiers is a two-player abstract strategy board game from Sri Lanka. It also comes from India under the name Cows and Leopards. A variant of this game is also popular in Bangladesh, where it is known as Sholo guti. One way it is played, is by drawing the court of the game on the ground and using stones as pawns.
Kotu Ellima is a two-player abstract strategy board game from Sri Lanka played by the Sinhalese people. The game was documented by Henry Parker in Ancient Ceylon: An Account of the Aborigines and of Part of the Early Civilisation (1909); the game was printed as "Kotu Ellima" which is actually a misspelling because his source for the game was Leopold Ludovici's Journal of the Ceylon Branch of the Royal Asiatic Society (1873), and specifically in the chapter entitled "The Sports and Games of the Singhalese", and Ludovici wrote the name of the game as Kotu Ellime or Taking of the Castles. The game is similar to draughts (checkers) and Alquerque as players hop over one another's pieces to capture them; it is more similar to Alquerque between the two since it uses a standard Alquerque board. However, unlike draughts and standard Alquerque, the game is played on an expanded Alquerque board consisting of four triangular boards attached to the four sides of a standard Alquerque board. It closely resembles Peralikatuma and Sixteen Soldiers which are also played in Sri Lanka and other parts of the Indian subcontinent with the only difference being the number of pieces. In Sixteen Soldiers, each player has 16 pieces hence the name of the game. In Peralikatuma, each player has 23 pieces. In Kotu Ellima, each player has 24 pieces, and at the beginning of the game the whole board is covered with them except the central point reminiscent of standard Alquerque.
Sua Ghin Gnua is a two-player abstract strategy board game from Thailand, formerly known as Siam. Another name for the game is Tigers and Oxen. It is a hunt game played on a 5x5 square grid with only orthogonal lines. One player plays the three tigers, and the other player plays the twelve oxen. The board is empty in the beginning. Players first drop their pieces onto the board, and then are able to move them. The tigers can capture the oxen by the short leap as in draughts and Alquerque, but the oxen attempt to elude and at the same time hem in the tiger. Sua Ghin Gnua most resembles the tiger hunt games such as Bagh-Chal, Rimau-rimau, Main Tapal Empat, Catch the Hare, and Adugo since they all use a 5 x 5 square grid. But tiger games technically consist of a standard Alquerque board which is a 5 x 5 square grid with several diagonal lines criss-crossing through it which are completely missing in Sua Ghin Gnua. There are however some variants of Catch the Hare which have missing diagonal lines also. Another game that resembles Sua Ghin Gnua is from Myanmar called Tiger and Buffaloes which is a hunt game consisting of a 4 x 4 square grid with no diagonal lines. Myanmar happens to border Thailand geographically so there might be a historical connection between the two games. Another game from Myanmar is Lay Gwet Kyah that is presumed to be similar to Sua Ghin Gnua. Sua Ghin Gnua was briefly described by Stewart Culin, in his book Chess and Playing Cards: Catalogue of Games and Implements for Divination Exhibited by the United States National Museum in Connection with the Department of Archaeology and Paleontology of the University of Pennsylvania at the Cotton States and International Exposition, Atlanta, Georgia 1895 (1898). It's also briefly mentioned by H.J.R. Murray in his book A History of Chess (1913). It was also described by R.C. Bell, in his book Board and Table Games from Many Civilizations (1969).
Astar is a two-player abstract strategy board game from Kyrgyzstan. It is a game similar to draughts and Alquerque as players hop over one another's pieces when capturing. However, unlike draughts and Alquerqe, Astar is played on 5×6 square grid with two triangular boards attached on two opposite sides of the grid. The board somewhat resembles those of Kotu Ellima, Sixteen Soldiers, and Peralikatuma, all of which are games related to Astar. However, these three games use an expanded Alquerque board with a 5×5 square grid with diagonal lines. Astar uses a 5×6 grid with no diagonal lines.
Dameo is an abstract strategy board game for two players invented by Christian Freeling in 2000. It is a variant of the game draughts and is played on an 8×8 checkered gameboard.
This glossary of board games explains commonly used terms in board games, in alphabetical order. For a list of board games, see List of board games; for terms specific to chess, see Glossary of chess; for terms specific to chess problems, see Glossary of chess problems.
Tobit is a draughts game that resembles Turkish and Armenian draughts in that pieces move orthogonally. It especially resembles Turkish draughts in that pieces only move orthogonally.
Keny is a draughts game played in the Caucasus and nearby areas of Turkey. Keny is actually the Ossetian name for the game as it is most popular in Ossetia, a region in the Caucasus. In Armenia, it is called Vayut tama. The game is also known as Caucasian checkers. There may be slight variations of the game, but the rules described here are from Nikita Sokolov from his article "It's been a while since we took checkers into our hands..." (2005).