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A checkerboard (American English) or chequerboard (British English) is a game board of checkered pattern on which checkers (also known as English draughts) is played.^[1] Most commonly, it consists of 64 squares (8×8) of alternating dark and light color, typically green and buff (official tournaments), black and red (consumer commercial), or black and white (printed diagrams). An 8×8 checkerboard is used to play many other games, including chess, whereby it is known as a chessboard. In The Netherlands, a dambord (checker board) has 10 rows and 10 columns for 100 squares in total (see article International draughts). Other rectangular square-tiled boards are also often called checkerboards.

Martin Gardner featured puzzles based on checkerboards in his November 1962 Mathematical Games column in Scientific American. A square checkerboard with an alternating pattern is used for games including:

• Amazons
• Chapayev
• Chess and some of its variants (see chessboard)
• Czech draughts
• Checkers, also known as draughts
• Fox games
• Frisian draughts
• Gounki
• International draughts
• Italian draughts
• Lines of Action
• Pool checkers
• Russian checkers

The following games require an 8×8 board and are sometimes played on a chessboard.

• Arimaa
• Breakthrough
• Crossings
• Mak-yek
• Makruk
• Martian Chess

• 
  An empty 8×8 checkerboard
• 
  An empty 8×8 checkerboard diagram
• 
  The opening setup of international draughts, which uses a 10×10 checkerboard
• 
  English draughts tournament standard

Given a grid with $m$ rows and $n$ columns, a function $f(m,n)$,

$f(m,n)=\{\begin{array}{cc}\text{black}& \text{if}m\equiv n\left(\mathrm{mod}2\right),\\ \text{white}& \text{if}m\equiv ̸n\left(\mathrm{mod}2\right)\end{array}$

or, alternatively,

$f(m,n)=\{\begin{array}{cc}\text{black}& \text{if}m+n\text{ is even},\\ \text{white}& \text{if}m+n\text{ is odd}\end{array}$

The element $(m,n)=(0,0)$ is black and represents the lower left corner of the board.

In Unicode, checkerboard characters are encoded at various code points:

• U+2427 ␧ SYMBOL FOR DELETE SQUARE CHECKER BOARD FORM
• U+2428 ␨ SYMBOL FOR DELETE RECTANGULAR CHECKER BOARD FORM
• U+1F67E 🙾 CHECKER BOARD
• U+1F67F 🙿 REVERSE CHECKER BOARD
• U+1FB95 🮕 CHECKER BOARD FILL
• U+1FB96 🮖 INVERSE CHECKER BOARD FILL

• Chessboard
• Croatian checkerboard
• Hexmap
• Warenne Check