Abstract: A computer accessory, primarily intended for the activity of playing computer games, being an apparatus which, when attached to a personal computer flat screen monitor or laptop (notebook type) computer monitor, effectively partitions the monitor's screen area into four segments, each one of which, as a consequence of the attachment of the apparatus to the monitor, then becomes visible to one, only, of four separate persons (players) sat around the computer monitor and apparatus in a classic North-South-East-West configuration, ideal for playing indoor games.