Erwin has already shown labyrinths with two axes and triple barriers in one of his earlier posts (see: related posts, below). Here, I want to use these and examine, whether they can be explained based on my courses and sector patterns and how they are composed. They have an even number of axes, and therefore, only courses AB or CD are applicable. Erwin’s Labyrinths, thus must be composed of combinations of sector patterns A and B or C and D. Let’s try if they can be identified with our sector patterns.
Figure 1 shows the first labyrinth by Erwin. This has a course AB and is composed of two sector patterns that are (horizontally) mirror symmetric to each other.
Also the second labyrinth by Erwin has a course AB and as well is composed of two mirror symmetrical sector patterns.
The third labyrinth by Erwin has a course CD and again is made-up of two mirror symmetric sector patterns. In addition, it is the complement of the second labyrinth.
Erwin’s fourth labyrinth, finally, is complementary to the first. Thus it has also a course CD and is made-up of mirror symmetric sector patterns as well.
All four labyrinths by Erwin, thus, are self-transnpose. The first and second labyrinth are two out of 16 possible combinations for the course AB, the third and fourth two out of 16 possible courses CD.
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