Playing Weiqi is like painting a picture together. Playing Weiqi is like confronting worldviews. You add a stone here, and it looks as if this corner is going to be black, these three poor little white stones are doomed. Your opponent adds a piece there, and the picture shifts, this corner is going to be shared. And all this while there are but five or six stones of each colour on the board. Put this stone there, and you will have outlines what is likely to be a fortified territorry. Put it one step further, and you have nothing you could call yours.