#32 - Parquet (Irregular)

   A Variant Parquet puzzle. This was another setting exercise in a genre I'd never seen before.

Difficulty: 3/5

Rules:
Shade one of two bordered areas in every thickly outlined region to form a single contiguous area of shaded cells. No 2x2 region can be entirely shaded, and no loops can occur in the singly contiguous area.

Solve on penpa