The universe of the Game of Life is an infinite two-dimensional orthogonal grid of square cells, each of which is in one of two possible states, alive or dead, or "populated" or "unpopulated" (the difference may seem minor, except when viewing it as an early model of human/urban behavior simulation or how one views a blank space on a grid). Every cell interacts with its eight neighbours, which are the cells that are horizontally, vertically, or diagonally adjacent. At each step in time, the following transitions occur:

• Any live cell with fewer than two live neighbours dies, as if caused by under-population.
• Any live cell with two or three live neighbours lives on to the next generation.
• Any live cell with more than three live neighbours dies, as if by over-population.
• Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction.

https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life

In order to run the game

• install ruby
• run run.rb file in the console ("ruby run.rb")
• You will be prompted to enter existing pattern as array (e.g [[0,0,0,0,0],[0,0,1,0,0],[0,0,1,0,0],[0,0,1,0,0],[0,0,0,0,0]]) or hit Enter to created randomly populated board 10x10
• See patterns change
• Hit Ctrl+C to stop

Enjoy!