

An isometric high-tech prison sits on a dark green ground, with gray concrete walls, a watchtower under an orange roof, ventilation grilles and a small orange truck in the yard. The finder squares are hidden in the square pits and walled enclosures inside the compound, while the dark and light modules run through the maze of short wall segments and rooftop blocks. Pale wall edges against deep shadow keep the pattern readable as clear light and dark shapes. Orange paving and a glowing yellow courtyard hatch add a warm accent against the cool gray.