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Sunglasses (1009)
Instruction:
Locate some "sunglass lenses" in the grid, based on the given "sunglass bridges". Each bridge is a given symmetric shape in the grid with two endpoints. Each lens is a single region connected along edges; exactly one cell of each lens is an endpoint of a bridge, and each bridge endpoint is part of one lens. Bridge cells that are not endpoints must not be part of lenses. Cells belonging to different lenses may not share an edge. The two lenses connected by a bridge must have the same shape, reflected across the line of symmetry of that bridge (marked with a small diamond).
The numbers on the left and top edges of the grid reveal the number of cells occupied by lenses in that row or column.