attempt 1  

atulab: W1 is sente so white gains enough momentum to win the race, unless B4 at W5 can kill some stones (W4 turns the race in a one eye against no eye with a shared liberty).


pwaldron: Black has a continuation to get ko, though.

attempt 2  

pwaldron: How about this way?

xela: Yes, I think this works--but I have a vague memory of having seen similar positions where white first forces at B2, and I remember not understanding why that way was considered better (sorry to be so vague as to details). Compare variation 2a:

variation 2a  

xela: This B2 makes things more interesting. White can still win; I think it's atulab's turn to make the next diagram :-)

variation 2a  

atulab: W3 and W5 to gain a liberty at a (black is short of liberty and can't attack) then kill with W7 ?

unkx80: Surely B6 is a typo. =P

GokyoShumyoSection4Problem5/Attempts last edited by Unkx80 on May 29, 2007 - 21:36
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