Abstract: An improved process for testing knowledge and understanding in a computer game in which factual material (86) is placed in or referenced to geometric blocks (84) on a computer screen. A player is challenged (82) to move the blocks so that they relate spatially to a definition, attribute, or value of the factual material. A player moves the blocks using a computer input device, such as a mouse or joystick. The process compares the placement of the blocks with the definitions or attributes of the factual material, notifies the player, and records the results of the comparison, thus providing a simple, intuitive means of playing a knowledge testing game without the need for a keyboard.