Connect Four (also known as Four Up, Plot Four, Find Four, Captain's Mistress, Four in a Row, Drop Four, and Gravitrips in the Soviet Union) is a two-...
Connect Four (also known as Four Up, Plot Four, Find Four, Captain's Mistress, Four in a Row, Drop Four, and Gravitrips in the Soviet Union) is a two-player connection board game, in which the players choose a color and then take turns dropping colored discs into a seven-column, six-row vertically suspended grid. The pieces fall straight down, occupying the lowest available space within the column. The objective of the game is to be the first to form a horizontal, vertical, or diagonal line of four of one's own discs. Connect Four is a solved game. The first player can always win by playing the right moves.
The game was first sold under the Connect Four trademark by Milton Bradley in February 1974.
Connect Four is a two-player game with perfect information for both sides. This term describes games where one player at a time plays, players have all the information about moves that have taken place and all moves that can take place, for a given game state. Connect Four also belongs to the classification of an adversarial, zero-sum game, since a player's advantage is an opponent's disadvantage.
One measure of complexity of the Connect Four game is the number of possible games board positions. For classic Connect Four played on 6 high, 7 wide grid, there are 4,531,985,219,092 positions for all game boards populated with 0 to 42 pieces.
The game was first solved by James Dow Allen (October 1, 1988), and independently by Victor Allis (October 16, 1988).
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OWARE
Oware is an abstract strategy game among the Mancala family of board games (pit and pebble games) played worldwide with slight variations as to the la...
Oware is an abstract strategy game among the Mancala family of board games (pit and pebble games) played worldwide with slight variations as to the layout of the game, number of players and strategy of play. Its origin is uncertain but it is widely believed to be of Ashanti origin.
Played in the Bono Region, Bono East Region, Ahafo Region, Central Region, Western Region, Eastern Region, Ashanti Region of Ghana and throughout the Caribbean, Oware and its variants have many names - Ayò, Ayoayo (Yoruba), Awalé (Ivory Coast, Benin), Wari (Mali), Ouri, Ouril or Uril (Cape Verde), Warri (Caribbean) Pallanguzhi (India) Wali (Dagbani), Adji (Ewe), Nchọ/Ókwè (Igbo), ise (Edo), Awale in (Ga) meaning Spoons in English according to the Ga name for the game. A common name in English is Awari but one of the earliest Western scholars to study the game, Robert Sutherland Rattray, used the name Wari.
The game requires an oware board and 48 seeds. A typical oware board has two straight rows of six pits, called "houses", and optionally one large "score" house at either end. Each player controls the six houses on their side of the board, and the score house on their end. The game begins with four seeds in each of the twelve smaller houses.
Boards may be elaborately carved or simple and functional; they may include a pedestal, or be hinged to fold lengthwise or crosswise and latch for portability and storage with the seeds inside. While most commonly located at either end, scoring houses may be placed elsewhere, and the rows need not be straight. When a board has a hinged cover like a diptych, the scoring houses may be carved into the two halves of the cover, and so be in front of the players during play. The ground may also be used as a board; players simply scoop two rows of pits out of the earth.
In the Caribbean, the seeds are typically nickernuts, which are smooth and shiny. Beads and pebbles are also sometimes used. In the West, some cheaper sets use oval-shaped marbles. Some tourist sets use cowrie shells.
The game starts with four seeds in each house. The objective of the game is to capture more seeds than one's opponent. Since the game has only 48 seeds, capturing 25 is sufficient to win the game. Since there is an even number of seeds, it is possible for the game to end in a draw, where each player has captured 24.
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