(;AB[cs]AB[cr]AB[dq]AB[er]AB[ep]AB[fp]AB[fo]AB[fn]AB[em]AB[dm]AB[cm]AB[bn]AB[bo]AB[ao]AB[bl]AW[co]AW[cn]AW[dn]AW[en]AW[eo]AW[dp]AW[cp]AW[bp]AW[br]AW[bs]AP[goproblems]
(;B[bq]
(;W[cq];B[aq]LB[ap:A]LB[ar:B]C[White cannot play at A or BRIGHT])
(;W[aq];B[cq];W[ap];B[ar]C[RIGHT]))
(;B[aq];W[bq];B[ap];W[ar]))