Do you think 1 + 1 = 0 is correct? So what do you think about ‘black + black = white’ statement? VOI is relaxing minimal puzzle game based on XOR logic; 0+0=0 1+0=1 0+1=1 1+1=0 VOI gives you a few draggable geometric shapes (triangle, square, rhombus, parallelogram etc.) to reach target shape. That’s all. Do you think that the easy? * One page game (no start button, no exit button) * Cool music and fx * Use mouse wheel to scroll levels