Tips boop

Center - On the 6x6 board, the four center squares are often the best spots to be in. They are the furthest away from the edges of the board, making those spots the hardest to push off the board. The closer your pieces are to the edges, the easier it becomes to push them off the board itself.

The center four squares

Lines of two pieces are key, as they allow a third piece to be placed at one end to form a three. Try to set them up for yourself, and to break them up when your opponent forms them.