Endgame Problem 12 / Attempts

Normal white play  

fractic: This is the normal white endgame if black doesn't play the forcing sequence. First white plays - in gote and later - is sente.

White play after forcing moves.  

fractic: If now - then later when white plays -, she can't connect.

Descent  

Bill: We have to consider .

White sente  

Bill: - is sente. Later - is sente, leaving a 1/3 point ko.