(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PB[Black to play]C[Just play through the moves to move 32 which is the problem position. 
These do not represent a game sequence!]
;B[br]
;W[bs]
;B[ar]
;W[cr]
;B[bq]
;W[cp]
;B[bp]
;W[do]
;B[co]
;W[eo]
;B[dn]
;W[fp]
;B[en]
;W[fq]
;B[fo]
;W[er]
;B[gp]
;W[gr]
;B[hq]
;W[hs]
;B[hr]
;W[]
;B[jr]
;W[]
;B[is]
;W[]
;B[go]
;W[]
;B[cn]
;W[]
;B[eq]
;W[]C[This is the problem position. Black to play.]
(;B[dq]C[The correct start is to make the centre of the group
one big eye in sente]
;W[cq]
;B[gq]
(;W[dr]C[Unfortunately although when white goes here
it looks like there should be a second eye on the edge...]
;B[fs]C[.. Black can play here and white can't stop it cannecting out]
(;W[es]
;B[cs]
;W[fr]
;B[gs]
;W[hs]
;B[gs]C[Still only one eye])
(;W[cs]
(;B[es]
;W[fr]
;B[gs]C[White also connects out this way])
(;B[fr]C[This move also works for black catching white
short of liberties (damezumari).]
;W[es]
;B[ep])))
(;W[fr]C[If white connects here instead of securing the big eye....]
;B[gs]
;W[fs]
;B[ds]C[..  then this placement catches white short again.]
;W[cs]
;B[dr]C[White cannot fill any of the 3 black liberties without
getting captured in damezumari.]
(;W[dp]
;B[as]
;W[ep]
;B[es])
(;W[es]
;B[ep])
(;W[ep]
;B[as]
;W[dp]
;B[es])))
(;B[ds]C[Playing the placement immediately fails.]
;W[dr]
;B[gq]
;W[fr]
;B[cs]
;W[es]C[Now black needs to play both throw ins to kill.])
(;B[cq]C[If black wedges in here...]
;W[dq]C[... then white easily makes good eye-making shape.]
;B[ds]
;W[es]
(;B[gs]
;W[cs]C[2 eyes])
(;B[cs]
;W[gs]C[also 2 eyes])))
