This is the result of my attempts to set a Heyawake with antisymmetric clues. As is often the case with highly-constrained setting, it was more difficult to control every aspect of the solution path so there are a couple of nasty steps here.
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Rules
Shade some cells so that no two shaded cells are orthogonally adjacent and the remaining unshaded cells form one orthogonally-connected area. Numbered regions must contain the indicated amount of shaded cells. An unbroken horizontal or vertical line of unshaded cells may not cross more than one bold border.
Difficulty: 7/10
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