To provide an advanced game and puzzle with many special effects, which are available from a yet-to-be-discovered phenomenon.

The game or puzzle includes multiple square polyomino pieces, each of which has the front and back faces, and each of the faces has a mark. The polyomino is formed of a lot of adjacent cubes. Each puzzle piece is composed of the same size of height as the size of the side of each square that forms the polyomino so that the polyomino has sides formed of adjacent squares. The marks on the back face and the front and the square of the side face are selected to present a sign at least on part of the square. The puzzle pieces can be assembled into one or more solutions that include assembled cubes having a lot of squares along each of the edges corresponding to the number of the squares of the front and the back face; At least one of the solutions includes at least one or more messages on at least one of the faces of the assembled cube. One or more of the messages comprise at least some of the signs on the squares.