(Referenced by 508; 817)

: ( 718)
If Black now plays a "late" guzumi, White must play, and win, the ko on the left side.

: ( 732)
Otherwise, if both sides follow the professional solution after here, White has lost three points of territory in the Capture Variation from the guzumi itself (, 94; 895). So, there is no longer the jigo of Cheng's solution, and Black will win.