UK Patent No 2174307. Text and drawing inspired from patent.

Rules of the Game

1- The play starts by serving as in ping-pong using either right or left-hand palm.

2- When the ball rebounds from the target or from the wall, it should be returned with the other hand, and the play continues by hitting the ball alternately with both palms.

3- If the ball falls on the floor, the player picks it and restarts again with a service.

4- The aim of the game is to strike the ball against the board and score as many points as possible within an agreed period (say one minute) set by the computer program.

5- The player should stay behind the service line (red line) during the whole game. The only time the player is allowed to go over the line is when picking the ball from the floor.

6- The displayed counter is incremented by one each time the ball hits the target.

7- There is no special additional equipment needed by the players apart from a ball (6 cm in diameter soft ball). The target-board and the computer can be shared by any number of players.

8- The board is fixed on a wall approximately at 1.5 m from the floor, and the counter (computer) is put in a safe and clearly seen place by both players and spectators.

9- Players can evaluate their performances accurately from the counter.

10- Accuracy of scoring enables undisputed records to be established.

11- Each player uses just one ball for playing a game.