This next position astonished us. Not only does Black have just one territory, it extends without interruption from side to side and down the middle.
And yes, it was a pro game. This was between Yun Ki-hyeon and Yi Tong-kyu in the Wangwi League in 1985. White won by 4.5.
John Power once decided to try to find a game where one player had played on every point across a single line of the board. He was successful, and that game is shown below - a 1951 Oteai game between Honda Sachiko and Yamamoto Yutaka - but remarkable as that is, the open territory somehow seems even more unlikely.
