Games and puzzles

A puzzle comprising a plurality of polomino pieces comprising twelve pentomino pieces and one tetromino piece, each said pentmino piece being of a shape different from the other pentomino pieces and defining one or more squares on opposite sides, the squares of each said piece being alternately marked on the obverse and reverse sides such that said pieces are capable of being assembled using their obverse sides only into one or more solutions comprising squares forming a checkered pattern of alternate markings which may be used for playing a checkers or chess type game, and wherein said pieces are capable of being further assembled using their reverse sides only into one or more solutions comprising squares forming a checkered pattern of alternate makings which may be used for playing a checkers or chess type game, said markings comprising at least three different markings and wherein the assembly of pieces forming said solutions obtained using said obverse sides of said pieces is different from the assembly of pieces forming the solutions obtained using the reverse sides of said pieces.

A puzzle comprising on a computer or video screen images of a plurality of polyomino pieces, each said piece having opposite sides and the opposite sides of each image defining one or more squares, each square having markings, the images of said pieces on the obverse side only being capable of being assembled into an array defining squares having a checkered pattern of said markings and said images of said pieces on the reverse side only being capable of being assembled into a further array defining squares having a checkered pattern of said markings, there being at least three different markings in total on said opposite sides of the images of said pieces, and wherein the assembly of images of said pieces forming the arrays obtained using the obverse sides of said images is different from the assembly of images of said pieces forming the arrays obtained using the reverse sides of said images.

A puzzle including a plurality of polyomino pieces, each said piece having on opposite sides one or more squares, said squares in each said piece and on said opposite sides having markings such that said pieces are capable of being assembled using their obverse sides only into one or more solutions comprising squares with the markings of the squares on said obverse side of said assembled pieces forming a checkerboard pattern of two alternate markings which may be used for playing a checkers or chess type game, and wherein said pieces may be further assembled using their reverse sides only into one or more solutions comprising squares forming a further checkerboard pattern of two alternate markings, said markings of said squares in total on both sides of said pieces comprise three or more different markings and when any assembly of pieces forming said solution is obtained using the obverse sides of said pieces, said reverse side of said puzzle is a pattern other than a checkerboard pattern.

A puzzle comprising a plurality of polyomino pieces, each of said pieces having two sides, and each of said sides comprising one or more squares, said squares having one of three markings,

• each side of said pieces comprising squares on opposite sides thereof, said pieces having first unique markings and a common marking on one side thereof and a second unique marking and the common marking on the other side thereof,
• some of said pieces with sides having first unique markings and some of said pieces having second unique markings capable of being assembled in one or more ways to form a solution to said puzzle, said solution comprising a checkerboard pattern of said first and second unique markings and said common marking,
• wherein, said arrangement of said pieces forming said solutions on one of said sides is different than the arrangement of said pieces forming solutions for said pieces on the other of said sides.