This document describes the rules and strategy for a 3x3 grid game played by two players who alternate placing pieces. It can be won by eliminating all opponent pieces or preventing any valid moves. A draw occurs after 20 moves without elimination. The document recommends using a MiniMax algorithm with basic heuristics like win/loss/draw values. More advanced heuristics are needed to choose the best branch based on remaining pieces and path depth. Different heuristics can be designed to improve the machine's intelligence for this game.