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Starwacky (707)

Instruction:
Blacken some cells in the grid so that each row, each column and each outlined region contains exactly two black cells. Black cells may not touch each other, not even diagonally. Additionally, any single horizontal or vertical line of unpainted cells cannot traverse more than one thick line.

Reference: WPC 2018 (120)

Parent puzzle:
Star Battle
Related puzzles:
Heyawake