heteromino: 4x4, R1C2 black, all else white what am i doing
@chaotic_iak This has three solutions, no? If you replace 4x4 with 2x2 it is unique, or if you don't let similar pieces touch at corners.
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@Jack_L_Lance oops fail, i thought R1C1 cannot be 7-triminoThanks. Twitter will use this to make your timeline better. UndoUndo
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