To provide a system which can determine and manage an exact progressing status of a game and a game result, can effectively collect customers being candidates of billiards players for a billiards parlor to the billiards parlor, and can make the billiards players widely communicate with other players.

This billiards device 2 comprises a photographing means which photographs a billiards table board face or a pocket and a recognition means which recognizes the ball kind of a falling ball and a falling pocket from photographing data of the photographing means, and also comprises a data accumulation means which accumulates the game data by making them associated with a player's ID and a means for transmitting data strung with the player's ID according to access from a player's terminal to the player's terminal 4. The billiards device enables communication between and among the players via a network.