White cannot play to A, because white stone would not have liberties. Also white cannot play to B, because again white stone would not have liberties. So white cannot start killing at all.
White cannot play to A, because white stone would not have liberties. Also white cannot play to B, because again white stone would not have liberties. So white cannot start killing at all.
Also white cannot play to B, because again white stone would not have liberties.
So white cannot start killing at all.
また、白はBに打つこともできません、再び白の石に呼吸点がありません。従って、白は全く捉えることを開始できません。