Introduction:1.Consists of 4 plastic rods with 9 spaces to form a 3 x 3 board 2.The chess pieces are straight cups, large cups, medium cups, and small cups. There are 4 large (medium) and small cups (different colors), and a total of 12 pieces.Power supply: Lithium battery, need 3 1.5V button batteries (note that this product does not carry the battery, please bring your own) Specifications: Material:Plastic Size:Mixed size Size: 24x24x5.5cm / 9.4x9.4x2.2in Playing method: 1. The player first sorts his own pieces into a cup and stacks them into three groups. 2. Stack a set of 3, each set of 2 pieces of chess placed outside the board; put the set of the top stack of chess pieces into any empty space on the board, not take the chess that is covered underneath child. 3. Move our chess pieces to any open space on the board, or cover the flag on a place smaller than our size. The covered pieces cannot be moved; There are enemy pieces under the moving chess pieces, and the latter stays in the original. 4. When 3 pieces of our chess pieces form a straight line or a horizontal line or a diagonal line, we win; if the enemy also leaves because of our chess pieces, there is a straight line or horizontal When the line or the slash, it is still our (active) victory.