(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[13]KM[5.50]TM[]
PW[Era]PB[exoss]AW[dl][el][fl][gl][hl][il][jl]AB[ck][dk][ek][fk][gk][hk][ik][jk][kk][cl][kl]C[How can black kill white ?]
(;B[dm]CR[dm]
;W[em]CR[em]
(;B[jm]CR[jm]
;W[im]CR[im]
;B[gm]CR[gm]C[RIGHT Like this white can't make two eyes.])
(;B[gm]CR[gm]
;W[hm]CR[hm]
;B[jm]CR[jm]C[RIGHT Like this white can't make two eyes.]))
(;B[jm]CR[jm]
;W[im]CR[im]
(;B[dm]CR[dm]
;W[em]CR[em]
;B[gm]CR[gm]C[RIGHT Like this white can't make two eyes.])
(;B[gm]CR[gm]
;W[fm]CR[fm]
;B[dm]CR[dm]C[RIGHT Like this white can't make two eyes.]))
(;B[gm]CR[gm]
(;W[dm]CR[dm]
;B[fm]CR[fm]
;W[jm]CR[jm]
;B[hm]CR[hm]C[CHOICE Like this you are in a seki .])
(;W[jm]CR[jm]
;B[hm]CR[hm]
;W[dm]CR[dm]
;B[fm]CR[fm]C[CHOICE Like this you are in a seki .])))