## Gale

**Players: **Two - **Also known as: **Bridgit

Players take turns in linking dots on overlapping grids. The first player to draw a continuous chain linking their ends of the board wins.

### Description

To create the board first draw a rectangular array of 4 x 5 blue dots. Then draw an overlapping array of 5 x 4 red dots:

The players take turns in linking two adjacent dots of their own colour. No two links may cross. The first player to form a chain of links across the board, from top to bottom (blue) or left to right (red), wins.

The game can be played with larger overlapping arrays of n x n+1 dots. The game cannot be a draw because, to block their opponent, a player must themselves form a continuous chain.

#### Example

For example, in the following game blue wins by forming a chain from top to bottom:

#### History

Gale, also known as Bridgit, was invented by the mathematician David Gale.

It was described in Gardner, Martin. *The Second Scientific American Book Of Mathematical Puzzles and Diversions.* University of Chicago Press, 1961.