Mind Ninja Pattern: Yin Yang

This one is much easier to understand from a picture example than from a description. Nonetheless, here's the best
description I can muster at the moment:

A connected group of stones, consisting of two subgroups. Each of the two subgroups should consist entirely of stones of one color, and that color should be different from that of the other subgroup. The two subgroups should have the same size and shape. The two subgroups should be connected in such a way that the overall group that they form can be rotated 180 degrees so that the two subgroups swap positions with one another. When you propose this pattern, you should specify the minimum size that the builder must achieve. For example, when you propose “Yin Yang 12”, it means the builder must make a Simple Yin Yang consisting of at least 12 stones. The group may be embedded.

Here are two examples that satisfy the requirements for "Yin Yang 12":

syy1.jpgsyy2.jpg

A special note: it appears that by using a symmetry strategy, the builder can guarantee himself a Yin Yang of at least 12, when playing on the board pictured above. Therefore, the given minimum size should never be smaller than 14 in practice.

M(edium?) Yin Yang

The following images were found in the images directory, but weren't used in any page. — DiEvAl, 02 Jun 2015 15:33
myy1.jpgmyy2.jpg
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