Conhexion is an elegant yet difficult tiling puzzle. Are you up to the challenge? Give it a try!
The puzzle consists of a set of pieces, all different, that must be arranged so that (1) all paths connect, (2) none of the backs overlap, and (3) all pieces are connected into a single group.
This app contains a tutorial level played with 15 pieces on a square grid, and the real puzzle played with 63 pieces on a hexagonal grid.