I fear we are not talking about the same game. In case I made a
mistake in my email you get the sgf here:
(;FF[4]CA[UTF-8]AP[GoGui:1.1]SZ[6]
KM[2.5]DT[2008-09-30]RE[B+Resign]
;B[cc];W[dd];B[cd];W[dc];B[db];W[eb];B[de];W[ee];B[ed];W[ec]
;B[ef];W[fd];B[ce];W[cb];B[bb];W[da];B[ba];W[ff];B[fe];W[ca]
;B[bc];W[ff];B[ea];W[fa];B[fe];W[ed];B[df];W[ff];B[fb];W[fc]
;B[fe];W[];B[ff])
There is only one black group and it cannot be killed because there
are no cutting poits and the eyspace is too large.
-Magnus
Quoting Ingo Althöfer <[EMAIL PROTECTED]>:
F1 by Black would be a huge blunder, because
then White plays B1 and kills the black group
in the lower right corner.
So, Black has to react on the quasi-Ko-thread c2,
giving White time to occupy F1.
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