Do you think 1 + 1 = 0 is correct? So what do you think about “black + black = white” statement? According to XOR logic, they are correct.

New, mind-bending, minimal puzzle game with dozens of levels and extra-ordinary design.

Features:
– 66 mind-bending levels (new levels coming…)
– 11 languages
– Exclusive for iOS and human brains

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