(;AB[er][eq][ep][fp][gp][fo][fn][hq][do][co][bp][bo][cq]AW[gq][fq][fr][ir][iq][ip][hp][eo][en][em][dq][dp][dr][cp][es][gm][hn]C[B to connect his two groups.]AP[goproblems]
(;B[cr];W[ds]
(;B[gs]
(;W[fs];B[hr]C[CHOICERIGHT])
(;W[gr];B[cs];W[fs];B[hr]C[CHOICERIGHT])
(;W[hr];B[fs];W[gr];B[cs]C[CHOICERIGHT]))
(;B[cs];W[fs]
(;B[hr];W[hs])
(;B[gs];W[hr])
(;B[gr];W[hr])))
(;B[gr];W[hr])
(;B[fs];W[gs];B[ds];W[cs];B[cr];W[ds];B[bs];W[fs]
(;B[hs];W[hr])
(;B[hr];W[hs]))
(;B[cs];W[cr];B[bq];W[br])
(;B[gs];W[cr]
(;B[bq];W[fs]
(;B[hr];W[fm])
(;B[br];W[hr])
(;B[ds];W[hr]))
(;B[fs];W[bq]C[White is alive in the corner, Black has one eye only and dies.])
(;B[hr];W[bq]C[White lives, Black has one eye.])
(;B[ds];W[bq]C[White lives, Black has one eye.])
(;B[br];W[bq]
(;B[aq];W[fs]
(;B[hr];W[fm])
(;B[ds];W[hr])
(;B[cq];W[hr]))
(;B[fs];W[bs])
(;B[hr];W[bs])
(;B[ds];W[bs])
(;B[bs];W[ar])
(;B[ar];W[fs];B[hr];W[fm])))
(;B[ds];W[cs]
(;B[cr];W[ds]
(;B[gs];W[br];B[bq];W[fs];B[hr];W[is])
(;B[bs];W[fs]))
(;B[gs];W[fs]
(;B[cr];W[ds];B[hr];W[br];B[bq];W[fm])
(;B[hr];W[cr]
(;B[br];W[bq];B[aq];W[fm])
(;B[bq];W[fm])))))