posetcay: This is the "easier" one of the previous one, with the first move already played (the throw-in at P17) this is a common pattern in this collection, but obviously doesn't translate well into this website's format.
TwT: Dear Sadaharu, (please not miss my disrespectfull joke at 226, for pedagogical reason). Who is the addressee of this question? Originally, Cho gave his name to tsumego collection books to earn him some money. Do you believe he himself ever had a glance at that collection? I would bet some money for the answer: Never ever. Why? He would have realized some issues even we are able to see. Thus, how to cope with it? (1) just ignore, we not have enough resources to really "solve" it (2) find a billionaire who is in love with go who wants to grant the best tsumego site a real lift off.
posetcay: This is the "easier" one of the previous one, with the first move already played (the throw-in at P17) this is a common pattern in this collection, but obviously doesn't translate well into this website's format.
I couldn't follow your comment.