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For alternative senses of the word "checkers", see checkers (disambiguation).

Checkers or draughts (pronounced "drafts"), is a group of mental sport board games between two players which involve diagonal moves of uniform pieces and mandatory captures by jumping over the enemy's pieces.

The most popular forms are international draughts, played on a 10×10 board, followed by English draughts, also called American checkers that is played on a 8×8 board, but there are many other variants.

The name "draughts" is preferred by English players and others in USA and the United Kingdom and many of its former colonies and territories. In the United States, Canada, and Australia the name "checkers" is preferred. This article treats the names "checkers" and "draughts" as synonymous, though the longstanding name "draughts" is used except in specific references to the game in countries where "checkers" is used.

Contents 1 General rules 2 Variants 3 Halma and Chinese checkers 4 Computer draughts 5 External links 6 References

General rules

Draughts is played by two people, on opposite sides of a playing board, alternating moves. One player has dark pieces, and the other has light pieces. The player with the light pieces makes the first move unless stated otherwise. Pieces move diagonally and pieces of the opponent are captured by jumping over them. The playable surface consists only of the dark squares. Capturing is mandatory. A piece that is captured is removed from the board. In all variants, the player who has no pieces left or cannot move anymore has lost the game unless otherwise stated.

Here are some important terms to know:

• Flying kings - kings that can move as far as they want in diagonals like a bishop in chess. However, flying kings cannot capture like a Bishop.
• Crownhead or Kings Row - the farthest row forward where men become kings when they touched this row.

Uncrowned pieces (in other words, men) move one step and capture other pieces by making two steps (that is, jumping over the opponents' piece).

Variants

• International draughts - The board size is 10×10 with 20 pieces on each side and has flying kings. If there are many sequences to capture, one has to capture the sequence that has the most pieces. If a man touches the kings row from a jump and it can continue to jump backwards, it has to jump backwards, but it is not kinged. It is mainly played in the Netherlands, France, some eastern European countries, some parts of Africa, some parts of the former USSR, and other European countries. This is the most popular variant of draughts.
  

  

  The starting position of English draughts
• English draughts - Also called American checkers or "straight checkers". It is played on an 8×8 board with 12 pieces on each side. Black (the darker color) moves first. Men (the uncrowned pieces) can only move and capture forward. When there is more than one way for a player to jump, one may choose which sequence to make, not necessarily the sequence that will result in the greatest number of captures. However, one must make all the captures in that sequence.
• Brazilian checkers - Exactly the same rules as international draughts, but it is played on an 8×8 board. It is mainly played in Brazil.
• Canadian checkers - Exactly the same rules as international draughts, but it is played on a 12×12 board with 30 pieces on each side. It is mainly played in Canada.
• Pool checkers - Exactly the same rules as Brazilian checkers but when there is more than one way for a player to jump, one may choose which sequence to make, not necessarily the sequence that will result in the greatest number of captures. However, one must make all the captures in that sequence. Another different rule between Brazilian checkers is in which black moves first, instead of white. It is mainly played in the South-Eastern states in the United States.
• Spanish checkers - Also called Spanish pool checkers. Men cannot jump backwards. Exactly the same rules as Brazilian checkers, but if there are many sequences to capture, one has to capture the sequence that has the most pieces. If there are still more sequences, one has to capture the sequence that has the most kings. The board is mirrored (the left side is flipped to the right side and vice versa). It is mainly played in some parts in South America and some Northern African countries.
• Russian checkers - Also called shashki checkers or Russian shashki checkers. Exactly the same rules as Brazilian checkers, but if a man touches the kings row from a jump and it can continue to jump backwards, it has to jump backwards as kings, not men. It is mainly played in some parts in Russia, some parts of the former USSR, and Israel.
• Italian checkers - Men cannot jump kings and men cannot jump backwards. If there are many sequences to capture, one has to capture the sequence that has the most pieces. If there are still more sequences, one has to capture with a king instead of a man. If there are still more sequences, one has to capture the sequence that has the most kings. If there are still more sequences, one has to capture the sequence that has a king first. The board is mirrored (the left side is flipped to the right side and vice versa). It is mainly played in Italy, and some Northern African countries.
• Suicide checkers - Also called anti-checkers, giveaway checkers or losing draughts. One has to give away all of one's pieces or block all of your pieces to win; that is, stop oneself from having a legal move.
• In Turkish draughts pieces move straight forwards or sideways, kings moving like a rook in chess, so that both red and black squares are used. Each player starts with 16 pieces in the first two rows. It is played in the same locations as Russian checkers.
• Laska is a checkers variant on a 7*7 board, with 25 fields used. Jumped pieces are placed under the jumper, so that towers are built. Only the top piece of a jumped tower is captured. This variant was invented by Emanuel Lasker.

Halma and Chinese checkers

Halma is a game in which pieces can move in any direction and jump over any other piece, friend or enemy. Pieces are not captured. Each player starts with 19 (2-player) or 13 (4-player) pieces all in one corner and tries to move them all into the opposite corner. Halma is actually a very different game than checkers.

Chinese checkers is based on Halma, but uses a star-shaped board divided into triangles. Contrary to its name, this game is not of Chinese origin, nor is it based on checkers.

Computer draughts

Portable Draughts Notation is the standard format to store draughts games. Computers play 8×8 draughts stronger than the top human players.

In the period of 1952-1962 Arthur Samuels (IBM) wrote, for draughts, the first game-playing program. It was much weaker than is generally believed and had no chance against top human players. Nevertheless, it is a milestone in AI programming.

External links

• The Rules of Checkers
• Checkers Rules, Variants, Strategy, and Links
• Checker Animations
• Chinook Homepage
• CheckerBoard Homepage
• Draughts to play online at Kurnik Online Games
• Play turnbased checkers and draughts at YourturnMyturn.com
• Play Checkers Online

References

• LoveToKnow 1911 Online Encyclopedia. © 2003, 2004 LoveToKnow.

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