<_title>Connect 4 <_description>Arrange four coins in a row <_prerequisite>Mouse-manipulation <_goal>Create a line of 4 pieces either horizontally (lying down), vertically (standing up) or diagonally. <_manual>Click the position in the line where you want to drop a piece. You can also use the arrow keys to move the piece left or right, and the down or space key to drop a piece. <_credit>Laurent Lacheny. Images and Artificial Intelligence taken from project 4stattack by Jeroen Vloothuis. The original project can be found on <http://forcedattack.sourceforge.net>