Editing Dots and boxes (section)

== Unusual grids and variants ==
Dots and Boxes need not be played on a rectangular grid{{snd}}it can be played on a triangular grid or a hexagonal grid.<ref name="ww"/>

Dots and boxes has a [[dual graph]] form called "Strings-and-Coins". This game is played on a network of coins (vertices) joined by strings (edges). Players take turns cutting a string. When a cut leaves a coin with no strings, the player "pockets" the coin and takes another turn. The winner is the player who pockets the most coins.  Strings-and-Coins can be played on an arbitrary [[graph (discrete mathematics)|graph]].<ref name="ww"/>

In analyses of Dots and Boxes, a game that starts with outer lines already drawn is called a ''Swedish board'' while the standard version that starts fully blank is called an ''American board''. An intermediate version with only the left and bottom sides starting with drawn lines is called an ''Icelandic board''.<ref>{{citation|url=http://wilson.engr.wisc.edu/boxes/results.shtml|title=Dots-and-Boxes Analysis Results|first=David|last=Wilson|publisher=University of Wisconsin|access-date=2016-04-07}}.</ref>

A related game is [[Dots (game)|Dots]], played by adding coloured dots to a blank grid, and joining them with straight or diagonal line in an attempt to surround an opponent's dots.