Dioxoid

From the rules:

Dioxoid is a game of chain reactions. Inside an oxygen molecule, two players bounce their electrons against each other to surround the opponent's nucleus. A single action may cause a reaction that advances or disrupts every electron, changing the entire game.

Description:

Dioxoid is an abstract strategy game. Each player has eight identical pieces which represent electrons. These move one space at a time. When an electron moves adjacent to any other electron, the non-moving electron is repelled and must move away; if it cannot, the moving electron moves away. The repelled electrons may cause others to move, etc. The object is to get all of one's own electrons into the opponent's starting spaces.