Maths encyclopedia and lessons  
Search

Mathematics Encyclopedia and Lessons

 
     
 

Lessons

Popular
Subjects

algebra
arithmetic
calculus
equations
geometry
differential equations
trigonometry
number theory
probability theory
more
 

References

applied mathematics
mathematical games
mathematicians
more
 
 

Chessboard

image:cb_start_large.png

A chessboard is the board used in the game of chess, which consists of eight rows and eight columns of squares arranged in alternating colors. Similar boards are also known as checkerboards. The colors are called "black" and "white", although the actual colors are usually dark green and buff for boards used in competition, and often natural shades of light and dark woods for home boards. Some play sets may use red and black, which is also used for checkers.

The board is always placed so that the rightmost square on the row nearest each player is a "white" square.

In modern commentary, the columns (called files) are labeled by the letters a to h from left to right from the white player's point of view, and the rows (called ranks) by the numbers 1 to 8 from the white player's point of view, thus providing a standard notation called Algebraic chess notation.

In older English commentary, the files are labeled by the piece originally occupying its first rank, and ranks by the numbers 1 to 8 from each player's point of view, depending on the move being described. This is called English chess notation, and is no longer commonly used.

At the start of the game, the pieces are arranged in ranks 1 and 2 as follows:

Rank 1 contains rook, knight, bishop, queen, king, bishop, knight, and rook in this order from left to right. The three pieces on the Queen's side are called "queen's rook", "queen's knight" etc., and the other pieces are "king's rook", "king's bishop", etc. Rank 2 contains eight pawns. Black's pieces on ranks 7 and 8 are a mirror image of white's. In particular, both kings share the same file (file e), as do both queens (on file d). This is often remembered by noting that each queen sits on a square of her own color.

The image at the top of this page is a graphical representation of this starting position, with the files and ranks labeled. By convention, diagrams display the starting position of the white pieces at the bottom of the board.

See also

External links

01-04-2007 01:18:14
The contents of this article are licensed from Wikipedia.org
under the GNU Free Documentation License. How to see transparent copy