# Computer Chess Club Archives

## Messages

### Subject: Re: Couple of chess programming questions

Author: Omid David

Date: 04:54:42 09/11/02

Go up one level in this thread

On September 10, 2002 at 17:12:54, Vincent Diepeveen wrote:

>On September 10, 2002 at 16:02:10, martin fierz wrote:
>
>draughts = international 10x10 checkers.
>
>That's the polish rules as used in:
>  Russia (and all the countries around it), France,
>  Netherlands, Senegal and another load of
>  countries.
>
>Of course UK and Italy have its own rules and the US has
>so many checker variations that i lost count, every pub has its
>own rules there i bet :)

These are the official checkers rules in America (taken from Braveheart 3D
Checkers' manual):

15. Checkers Rules

Many kinds of checkers are played around the world, with different board sizes
and rules. The version presented here, sometimes called "Anglo-American
Checkers," is the most popular form of the game in the United States and Great
Britain.

Checkers is a two-player strategy game played on a 64 square checkered board.
The object of the game is to capture or blockade all of the opponent's pieces.
If neither player can accomplish this, the game is a draw.

Each player begins with 12 single checkers, also known as "men".

Beginning with Red each player moves one of his or her pieces per turn.
Throughout these rules, a "piece" means either a "man"--a single checker, which
is all that players have at the start of the game--or a "king" which is what a
man becomes if it reaches the last rank. A man may move one square diagonally
forward--that is, toward the opponent-onto an empty square.

If a square diagonally in front of a man is occupied by an opponent's piece, and
if the square beyond that piece in the same direction is empty, the man may jump
over the opponent's piece and land on the empty square. The opponent's piece is
captured and removed from the board.

When a man reaches the last rank--the row of squares closest to the opponent--it
becomes a king. A previously captured checker is placed on top of it as a crown
to distinguish it from an ordinary man. Kings have the ability to move and
capture the same way as men, but they also may move and capture backward.

A player must make a capture when able to do so, and may not make an ordinary
noncapturing move. If, after making a capture, a piece is in a position to make
another capture--either along the same diagonal or a different one--it must do
so, all as part of the same turn. Capturing two opposing pieces in a turn is
called a double jump, capturing three pieces in a turn is a triple jump, and so
on.