The Game of Life is a mathematical simulation, an automata, invented by John Conway. It first appeared in a Magazine article in 1970. The game your seeing here takes Conway's original rules and adapts them for two player competition. Each player designs a board, sets them up on opposing sides and lets the simulation run.
In the original game an empty cells comes to life or dies depending on the number of neighbors it has. If a living cell has two few neighbors it dies of loneliness, if it has to many it dies from overcrowding. If a dead cell has just enough neighbors it springs to life. These simple rules result in amazingly complex patterns when carefully designed boards are left to run.
In our game, the basic rules are the same, the only change is cells can be two colors. When a new cell is born, it takes on the color of the majority of it's neighbors. In our example you can see how an Old Man pattern turns from two thirds pink to all pink.