Kato Masao (Black) against Fujisawa Shuko. White has just played the marked stone.
White is hoping to strengthen the right with 1-5 and then play 6 which both helps the center white stones, and threatens both the right and upper black stones.
Black refuses to co-operate and plays 1 instead, exchanging the corner for the side.
--DaveSigaty
Referenced byBQM23