The rule is the same as “Number Place”, so that the same color is not arranged in each row, column, block (3x3). It is no longer possible to solve with only one face, and mutual faces can be solved by mutually solving surrounding cells that are shared with the side faces. The game screen is displayed in 3D, and the answer is advanced while looking at not only the front but also the side cells. In “Number Place” so far, it can be solved by row, column, block (3x3), but in “3D Color Place”, it may