Gokyo Shumyo, Section 1, Problem 90 / Attempts

First threaten, then tesuji  

The white group on itself does not live, so we have to try to make a move like W1 sente on the right. It certainly threatens to live (if white plays at 2, she has two eyes, so the real problem comes after B2. Now W3 looks like tesuji. Unfortunately, black has various ways to answer this. a to e all fail: if black plays a or b, white takes the other, similar with c and d. Black e is answered at a.

Most interesting (7 at the marked stone)  

The most interesting answer is B1 here. It seems like in the sequence to B7, black has managed to turn the position into a ko, but white has the move at W8 to save the day. Black cannot connect.

I think that the order of W1 and W3 in the first diagram can be reversed, by the way.

- Andre Engels

Gokyo Shumyo, Section 1, Problem 90 / Attempts last edited by CharlesMatthews on July 23, 2003 - 15:31
RecentChanges · StartingPoints · About
Edit page ·Search · Related · Page info · Latest diff
[Welcome to Sensei's Library!]
Search position
Page history
Latest page diff
Partner sites:
Go Teaching Ladder
Login / Prefs
Sensei's Library