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Example 7, using square (joins 1)

Based on Owen Jones XXV(left centre), but using a a regular octagon. PP Class 90, [p4m,d4,d1], IH Class 70.

Statistics on this tiling:

Tiling has symmetry p4m.
Tiling has 3 polygons (with 30 edges) of which 1 are specified as copies of others.
Edges are completely connected.
Tiling is not edge-to-edge.
Tiling satisfies the two-polygon condition.
Internal angles a multiple of 60°.
Contains one non-regular polygon which does not have reflective symmetry.
Contains: one regular hexagon.
Tiling contains 106 polygons.