Always take the center if it is available
If the center is taken, take a corner
If you go first, start with the center
If your opponent starts with the center, take a corner
Create two winning threats at once whenever possible
Block your opponent’s immediate winning move every turn
Take the opposite corner if your opponent takes a corner
Use forks to force your opponent into defense
Do not waste moves on edges unless needed to block or create a fork
If both players play perfectly, force a draw
To beat imperfect players, punish every mistake immediately