Abstract: A device for monitoring a first player, the device includes: a location unit; a score button; a score calculating unit arranged to: receive a first player score indication, transmit a first player score message to another device that is designed to trigger a first player score alert, determine whether to update a first player score value based on at least zero responses to the first player score message, and update the first player score value based on the determination; a feedback unit arranged to receive a second player score message about an intent of a second player to update a second player score value, generate a second player score alert, and transmit a first player response based on at least zero responses of the first player to the second player score alert; and a display for displaying the first player score value and at least one other player score value.