(;AB[bs]AB[ds]AB[es]AB[er]AB[eq]AB[ep]AB[dp]AB[co]AB[bo]AB[ao]AB[dn]AW[cs]AW[cr]AW[dr]AW[bq]AW[bp]AW[cp]AW[ap]TR[bs]AP[goproblems]
(;B[ar]
(;W[br]C[CHOICE];B[dq]LB[as:A]C[koRIGHT])
(;W[dq]C[Mistake by White];B[br]C[RIGHT]))
(;B[dq]
(;W[ar]LB[br:A]C[CHOICE])
(;W[br]C[Mistake by White that reverts to solution];B[ar]C[koRIGHT])))