A puzzle/decoder for decoding and viewing lens resolvable encoded images. The
decoder
includes an encoded image which can be decoded with one or more decoding lenses.
A retainer is also included in the decoder for retaining the decoding lenses in
proximity to the encoded image borne by the substrate. A decoded image is formed
when a lens adapted to decode a particular encoded image is slid over the encoded
image. The decoder can be a substantially flat slide puzzle, a cylindrically shaped
slide puzzle, an enclosed puzzle with freely moving decoding lenses therein, a
puzzle shaped as a three-dimensional object or a combination puzzle including two
or more individual puzzles.
