(;AB[bp]AB[cp]AB[dp]AB[dq]AB[cr]AW[dr]AW[er]AW[fq]AW[fp]AW[fo]AW[en]AW[dn]AW[cn]AW[bo]AP[goproblems]
(;W[bq]
(;B[ar]C[CHOICE]
(;W[bs];B[cs]
(;W[br]C[One eye for Black.RIGHT])
(;W[aq];B[ap])
(;W[ds];B[br])
(;W[cq];B[br])
(;W[ap];B[aq]
(;W[br]C[RIGHT])
(;W[ao];B[br])
(;W[ds];B[br]))
(;W[ao];B[br]))
(;W[ap];B[aq]
(;W[br];B[ao]
(;W[bs]C[RIGHT])
(;W[cs];B[bs]C[Ko]))
(;W[bs];B[cs]
(;W[br]C[RIGHT])
(;W[ao];B[br])
(;W[ds];B[br]))
(;W[cs];B[bs])
(;W[ao];B[bs]))
(;W[aq];B[ap]
(;W[br];B[bs]C[Ko])
(;W[bs];B[cs])
(;W[cs];B[bs]))
(;W[br];B[bs]
(;W[aq];B[ap]C[Ko])
(;W[ap];B[cq]))
(;W[cq];B[bs])
(;W[cs];B[bs]
(;W[br];B[ds]
(;W[aq];B[ap]C[Ko])
(;W[ap];B[cq]))
(;W[ap];B[aq])
(;W[cq];B[ds])))
(;B[ap]C[CHOICE]
(;W[br];B[bs];W[ar]C[RIGHT])
(;W[cs];B[bs]
(;W[br];B[ds];W[ar]C[RIGHT])
(;W[ar];B[br]
(;W[aq]TR[dr]C[RIGHT])
(;W[ds];B[aq]))
(;W[ds];B[br])
(;W[cq];B[br])
(;W[aq];B[ar]))
(;W[bs];B[cs];W[br]C[RIGHT])
(;W[cq];B[br])
(;W[aq];B[ar]
(;W[br];B[bs]C[Ko])
(;W[bs];B[cs])
(;W[cs];B[bs]))
(;W[ar];B[br]
(;W[aq];B[cs])
(;W[cs];B[bs]
(;W[aq]TR[dr]C[RIGHT])
(;W[ds];B[aq]))
(;W[bs];B[cs])))
(;B[aq]
(;W[br];B[bs];W[ar]C[RIGHT])
(;W[cs];B[bs];W[br];B[ds];W[ar]C[RIGHT])
(;W[ar];B[ap];W[br]C[RIGHT])
(;W[bs];B[cs];W[ar]C[RIGHT])))
(;W[bs];B[cs]
(;W[br];B[bq];W[ds]C[RIGHT])
(;W[bq];B[ar]
(;W[br]C[One eye for Black.RIGHT])
(;W[aq];B[ap])
(;W[ds];B[br])
(;W[cq];B[br])
(;W[ap];B[aq]
(;W[br]C[RIGHT])
(;W[ao];B[br])
(;W[ds];B[br]))
(;W[ao];B[br]))
(;W[ds];B[br])
(;W[cq];B[br])
(;W[ap];B[bq]
(;W[aq];B[ar])
(;W[ar];B[aq])
(;W[br];B[ar])
(;W[ds];B[ar])))
(;W[br];B[bs];W[bq];B[ar]
(;W[aq];B[ap])
(;W[ap];B[cq]))
(;W[cs];B[bs];W[br];B[ds]
(;W[ar];B[bq])
(;W[bq];B[ar];W[aq];B[ap]))
(;W[aq];B[bq];W[ap];B[ar];W[bs];B[cs])
(;W[ar];B[bq]
(;W[br];B[cs])
(;W[cs];B[bs]
(;W[br];B[ds])
(;W[ds];B[br]))
(;W[bs];B[cs])
(;W[ap];B[aq])
(;W[aq];B[ap])))