Patent ID: 7887055

Claim:
A puzzle, comprising: (a) a plurality of geometric shapes arranged contiguously; (b) linear constructs formed in the alignment of said geometric shapes; (c) empty spaces formed in the intersections of said geometric shapes; (d) indicia, selected from a predetermined, limited set, placed without repetition in said geometric shapes and aligned with said linear constructs, a predetermined subset of said indicia being provided to an examinee as clues for solving said puzzle; (e) aggregated information provided in said empty spaces about said indicia bordering said empty spaces provided to an examinee as clues for solving said puzzle; and (f) aggregated information written into said puzzle about said indicia residing in said linear constructs provided to an examinee as clues for solving said puzzle, wherein said geometric shapes are sixteen octagons arranged in a four-by-four grid, wherein the indicia are numbers selected from the integers 1 through 8, and said numbers are placed in said octagons so as to align, without repetition, with rows, columns, and diagonals.