(;AB[bs]AB[br]AB[cr]AB[cq]AB[dq]AB[dp]AB[ep]AB[fp]AB[gq]AB[ds]AW[ar]AW[bq]AW[cp]AW[do]AW[eo]AW[fo]AW[go]AW[hp]AW[hq]AW[hr]AW[eq]AW[er]AW[dr]AW[bp]SZ[19]C[White to kill]
(;W[fs];B[fr]
(;W[gs];B[es];W[cs];B[es];W[ds]C[RIGHT])
(;W[gr];B[fq]
(;W[es];B[gs])
(;W[gs];B[es])))
(;W[gs];B[fs]
(;W[fr];B[gr]
(;W[es];B[fq];W[cs]C[Ko.])
(;W[hs];B[fq];W[es];B[fs]))
(;W[gr];B[fr])
(;W[es];B[fr];W[cs]C[Black is alive.]))
(;W[gr];B[fr];W[fs];B[fq]
(;W[es];B[gs])
(;W[gs];B[es]))
(;W[fq];B[fr])
(;W[fr];B[gr];W[gs];B[fs];W[es];B[fq];W[cs]C[Ko.])
(;W[es];B[fr]
(;W[fs];B[gs];W[cs];B[gr])
(;W[cs];B[fs])))