(;AW[ar]AW[bs]AW[cr]AW[dr]AW[ds]AW[bp]AW[ap]AB[ao]AB[bo]AB[co]AB[cp]AB[cq]AB[dq]AB[eq]AB[er]AB[es]C[Black can't kill White but has the best result.FORCE]AP[goproblems]
(;B[bq]C[FORCE];W[br]C[FORCE];B[aq]C[RIGHT])
(;B[aq]C[FORCE];W[bq])
(;B[br]C[FORCE];W[bq]))