Compact solutions

In a compact solution one defines a 64-hexagons shape beforehand and next fills it, matching all lines with lines and blank sides with blank sides or blank space.

Compact solutions of the square set are at the core of BackSlide, a "15-puzzle" with a very unusual twist.

R-symmetric subsequent hexes

Several kinds of symmetry are possible, like this rotational symmetric "subsequent hexes" solution.

O-symmetric subsequent hexes

Or these orthogonally symmetric "subsequent hexes" (with the 16 orthogonally symmetric pieces in the vertical axis).

D-symmetric diamond

Or this diagonally symmetric diamond (with the 8 diagonally symmetric pieces in the horizontal axis).

Symmetric shape solution

Here the shape is symmetric, but not the solution.

Symmetric shape solution

Again the shape is symmetric, but not the solution.

Chess knight

Figurines are also possible, like this Chess knight.

A

Letters and numbers have all been solved.