With move 21, Black completed a sphere of influence in the center. By the late middle game Black had built up a promising position, but White's move 160 was a brilliant move in the center that put White back in the game and eventually led to the capture of five Black stones on the right.
Black completed a sphere of influence in the center with move 21. By the late middle game, Black had built up a strong position, but White's move 160 was a brilliant counterattack that put White back in contention and eventually led to the capture of five Black stones on the right side.