moyo

A framework mapping out a sizeable amount of potential but not actual territory. Considerable skill and sound judgement is needed to successfully employ moyo strategy. In the diagram, it is White's turn, which is just as well, because Black's moyo to the left is much more impressive than White's moyo to the right. White is faced with a difficult judgement as to how to reduce the potential black territory. On the other hand, Black must play very accurately if he is to properly exploit any invasion that White might launch.