Dragons is a logic-based puzzle inspired by Battleship, Minesweeper and Conway's Game of Life.
The objective is to fill a grid - some squares are given from the start. A square can either be a dragon (
), fire (
) or air (
).
There are three rules that dictate how the grid must be completed. Only one valid solution exists for a given puzzle.
Every dragon has its own territory (the eight squares surrounding him). Inside one's territory there can't be other dragons.
You can mark squares where dragons are impossible with a point (
).
Dragons don't like each other and they spit fire when being provoked. That's why squares of overlapping territories must always be fire - but only then.
Dragons need air to survive. That's why at least two of the four directly adjacent squares (not diagonal) of a dragon must be air.
Click here to try out the puzzle online. It also works on mobile phones.
This repository also contains a command line program that can generate and solve these kind of puzzles. The command line can be used as follows:
git clone https://github.com/winkula/dragons.git
go run .\cmd\dragons\