• • • Best Games on iPhone; Russia, South Africa, Turkey, Middle East • • •

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:
• 88 mind-bending levels
• 11 languages
• Exclusive for iOS and human brains

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* bug fix