(;AP[goproblems]AW[ds]AW[es]AB[bs]AW[cr]AB[cq]AW[cp]AW[dp]AW[dq]AW[eq]AW[fq]AW[gq]AW[fr]AB[gr]AB[hr]AB[hq]AB[ep]AB[fp]AB[gp]AB[do]AB[co]AB[bo]C[Kill white group](;B[aq];W[bp](;B[ap];W[bq])(;B[bq];W[ap]))(;B[ar];W[bq])(;B[bq];W[bp](;B[ap](;W[ar]C[CHOICE](;B[aq];W[br])(;B[br];W[aq](;B[as]C[];W[aq](;B[ao]C[];W[cs];B[ar];W[aq];B[bq];W[br];B[ar]C[Correct !RIGHT])(;B[ar]C[];W[cs];B[ao];W[aq];B[bq];W[br];B[ar]C[Correct !RIGHT]))(;B[ao]C[];W[cs];B[as];W[aq];B[ar];W[aq];B[bq];W[br];B[ar]C[Correct !RIGHT])))(;W[br]C[CHOICE](;B[ar];W[aq];B[bq]C[RIGHT])(;B[aq];W[ar])))(;B[br];W[aq])(;B[aq];W[ap])(;B[ar];W[ap]))(;B[bp];W[bq](;B[br];W[aq])(;B[aq];W[ar])(;B[ar];W[aq]))(;B[br];W[bq];B[bp];W[aq]))