To remove contained moisture in a comparatively short time and to prevent the generation of distortion.

Concerning this board for Shogi and Go, holes 3 are opened from four corners (a) and (c) or the like for mounting legs 1 to almost the center of a board 2, the moisture residue at the central part of the board 2 is dispersed through the holes 3, and the weight of the board 2 is decreased to become a prescribed value. Besides, adhesive agents are injected into the holes 3 as needed and by inserting a wooden pile having the shape similar to the hole 3 and the same dimension into the hole 3 or by inserting a wooden pile coated with the adhesive agent into the hole 3, the hole can be filled.