Patent ID: 7677564

Claim:
An apparatus for playing a board game, comprising: a playing game member having a master grid with a plurality of cells arranged in columns and rows, wherein the master grid is subdivided into sub-grids, each sub-grid having a number of cells equal to the number of columns in the master grid, each cell divided into a number of sub-cells equal to the number of columns in the master grid, and each sub-cell assigned a distinct indicia; a solution game member having indicia corresponding to respective cells of the playing game member, the solution game member positioned with respect to the playing game member to substantially align the indicia with corresponding cells of the playing game member, the indicia providing an indication of correctness of a user-proposed solution; and an intermediate game member having a plurality of apertures respectively aligned with the sub-cells of the playing game member, the intermediate game member positioned between the playing game member and the solution game member, the playing, solution, and intermediate game members removably secured to each other.