% sierpinski2x2_nonunique1.tiles
%  This early attempt at proofreading tried to conserve sticky-end types.
%  The original bond types 2 and 3 were used to convey information (between blocks)
%  and each block used a single bond type (unique to that tile) for cooperative binding.
%  Both symmetries allow shift-faults along horizontal and vertical lines -- bad!
tile edges matches {{N E S W}*}
num tile types=19
num binding types=7
tile edges={
{1 0 0 1}[.1]
{1 0 1 2}[.5]
{2 1 0 1}[.5]
{3 4 4 3}
{3 3 4 4}
{4 3 3 4}
{4 4 3 3}
{3 7 7 3}
{3 2 7 7}
{7 2 2 7}
{7 7 2 3}
{2 6 6 2}
{2 3 6 6}
{6 3 2 6}
{6 6 2 2}
{2 5 5 2}
{2 2 5 5}
{5 2 3 5}
{5 5 3 2}}
binding strengths=
{2 1 1 1 1 1 1}
% historical: aka sierproof2x2.tiles