(;AB[aq]AB[ap]AB[cq]AB[cr]AB[dr]AB[ds]AW[ao]AW[bo]AW[cp]AW[dp]AW[dq]AW[eq]AW[er]AW[es]AP[goproblems]
(;B[bs];W[bq]
(;B[br];W[ar])
(;B[ar]C[RIGHT]))
(;B[bq];W[bs])
(;B[bp];W[ar];B[bq];W[bs])
(;B[ar];W[bs])
(;B[br];W[bs]
(;B[bp];W[ar];B[as]C[ko])
(;B[as];W[ar]C[If W win the ko W can play B3 or A1])))