To enter into a battle of wits, you don't need any special Martian technology. Throughout outer space, the classic Earth game of Four in a Row is testing the talents and mental acuity of beings of all species. Represent your fellow Earthlings by pulling up a seat and playing a game of Space 4 in a Row. As you and your opponent take turns dropping colored chips into the grid, try to get four of your own chips in a row vertically, horizontally or diagonally. Keep an eye on what your opponent is doing so you can use your turn to block his efforts. The first player to get four in a row wins!