To provide a board game which is an intellectual training toy for a child and is suitable even for an adult since the board game requires calculating ability and thinking power though having a simple rule.

Winning or losing is determined in the board game as follows. A piece, where same marks and numbers (large, middle and small numbers such as 1-3), etc., are respectively written on three opposing pairs of surfaces in a regular hexahedron, is sequentially moved by rolling by each grid section on a board by the player. Then, a player acquires the pieces of an opponent, increases his/her own pieces, and seals off the movement places of the pieces of the opponent by cornering, etc. Then, winning or losing is determined by competing the total points of the upper surfaces in the pieces, or by sealing off the movement place of the pieces of the opponent by cornering.