Patent ID: 7731192

Claim:
A construction and balancing puzzle comprising: at least one first type puzzle piece, said first type puzzle piece being substantially in the form of a cube and having a length, a width and a depth and wherein said length and width are equal; a plurality of second type puzzle pieces, each of said second type puzzle pieces having a depth that is equal to the depth of said first type puzzle piece and having portions having lengths that are whole multiples of the length of said first type puzzle piece, and a base member having a depth substantially equal to the depth of said puzzle pieces, said base member having a planar bottom adapted to rest on a flat support surface and two upwardly facing walls, said walls being connected and forming a V between them with an angle of 90 degrees and the length of said walls being equal to each other, wherein the length of said walls of said base are greater than the length of said first type puzzle piece but less than twice the length of the length of said first type puzzle piece and said puzzle pieces are capable of being supported on said base member and then on each other to form a completed puzzle construction in a single vertically extending plane.