Detectors are provided under the intersections on a go board so as to detect a stone placed on an intersection, making a distinction between white and black stones. Data on the record is generated according to the information on the detection by the detectors every time either of the stone-placement switches arranged for the white player and black player and operated after either of the players places a stone is operated. Thus, the record can be displayed on a screen according to the data on the go record during or after the game or printed out.
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