(;AB[ar]AB[bq]AB[bp]AB[cp]AB[dp]AB[ep]AB[fp]AB[gp]AB[hp]AB[hq]AB[jq]AB[er]AW[bs]AW[br]AW[cr]AW[cq]AW[dq]AW[eq]AW[fq]AW[gq]C[Black to play and kill]AP[goproblems]
(;B[hs]
(;W[ds]C[CHOICE];B[fs]C[Correct !RIGHT])
(;W[gr]C[CHOICE];B[fs];W[gs];B[ds]C[RIGHT]))
(;B[gr];W[fr];B[hr];W[ds];B[fs];W[es])
(;B[hr];W[ds];B[gs];W[fs];B[fr];W[gr];B[es];W[dr]))