(;AB[bq]AB[cq]AB[cp]AB[dp]AB[ep]AB[eq]AB[er]AB[iq]AB[kq]AW[ar]AW[br]AW[dr]AW[bp]AW[bo]AW[co]AW[do]AW[eo]AW[fp]AW[gq]AW[gr]AW[go]AW[es]AB[ds]C[Can black live here?]AB[ap]AW[bm]AP[goproblems]
(;B[gs]
(;W[hr]C[CHOICE]
(;B[cr]
(;W[aq]
(;B[bs];W[ao]
(;B[fr]C[yes, - ko is the only solution hereCHOICERIGHT])
(;B[fs];W[fr])
(;B[dq];W[fr])
(;B[hs];W[fr]))
(;B[fr];W[cs]
(;B[bs];W[ao];B[ds]C[koRIGHT])
(;B[hs]C[NOTTHIS]))
(;B[dq];W[fr])
(;B[hs];W[fr])))
(;B[fr];W[cr]
(;B[aq];W[bs])
(;B[fs];W[aq])
(;B[bs];W[aq]))
(;B[aq];W[cs]
(;B[fs];W[cr]
(;B[ds];W[fr];B[dq];W[hs])
(;B[dq];W[fr];B[ds];W[hs];B[es];W[fq])
(;B[fr];W[hs];B[dq];W[fq];B[ds];W[ao]))
(;B[cr];W[fs])
(;B[fr];W[hs]
(;B[fs];W[cr])
(;B[cr];W[fs])))
(;B[fs];W[aq]
(;B[cr];W[fr])
(;B[fr];W[cr])))
(;W[cs];B[fr]
(;W[aq];B[hr]C[RIGHT])
(;W[hr];B[cr];W[aq]))
(;W[hs];B[fs];W[fr];B[es];W[hr];B[aq];W[cr];B[cs]C[];W[ao];B[bs]C[];W[fq]C[sekiRIGHT])
(;W[fr];B[fs];W[hs]))
(;B[aq];W[fs]
(;B[cs];W[cr])
(;B[cr];W[cs]))
(;B[cr];W[aq]
(;B[bs];W[ao]
(;B[fr];W[fs];B[gs];W[fs])
(;B[gs];W[fr])
(;B[fs];W[fr]))
(;B[gs];W[fr])
(;B[fs];W[fr])
(;B[fr];W[fs];B[gs];W[fs]))
(;B[cs];W[aq]
(;B[fr];W[cr])
(;B[gs];W[hr]
(;B[cr];W[fr])
(;B[fr];W[cr]))
(;B[fs];W[fr]))
(;B[fs];W[aq]
(;B[cr])
(;B[fr];W[cr]))
(;B[fr];W[cr]
(;B[aq];W[gs]
(;B[fs];W[bs])
(;B[cs];W[fs]))
(;B[gs];W[hr])
(;B[fs];W[aq]))
(;B[bs];W[aq]
(;B[gs];W[fr])
(;B[fr];W[cr])
(;B[cr])))
kaf