Heteromino Divide the white squares into polyominoes of size 3 such that no two identical polyominoes that are also identically oriented are orthogonally adjacent.
Expected difficulty Medium • Answer • Comment/E-mail if you want a solution to be published
Puzzle 74: Double!
Tridivision
Of course this has to happen with a trivial puzzle. There you go, your puzzle consumption after 40 days.
Chaos at the Sky 
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