(;AW[bs]AW[br]AW[bq]AW[cp]AW[co]AW[dn]AW[en]AW[fn]AW[cm]AW[go]AW[ho]AW[hp]AW[hq]AW[hr]AB[dp]AB[do]AB[eo]AB[fo]AB[gp]AB[gq]AB[gr]AB[fq]AB[eq]AB[cr]AB[cq]AW[dq]TR[cr]TR[cq]AP[goproblems]
(;W[er];B[dr];W[ds]C[RIGHT])
(;W[dr];B[er];W[cs];B[es])
(;W[ds]
(;B[er]LB[dr:A]C[CHOICE])
(;B[dr]C[Mistake by black reverts to solution];W[er]C[RIGHT])))