(;AB[cs]AB[ds]AB[dr]AB[dq]AB[dp]AW[as]AW[bs]AW[cr]AW[cq]AW[co]AW[bo]AW[ao]AB[do]AB[dn]AB[dm]AB[cm]AB[an]AB[bn]AP[goproblems]
(;W[aq];B[cp];W[bp];B[br];W[bq];B[ar]C[RIGHT];W[bs];B[as];W[bs]C[RIGHT])
(;W[bq];B[cp];W[bp]
(;B[aq]LB[ar:A]C[CHOICE])
(;B[ar]C[Mistake for Black that reverts to solution.];W[aq];B[br];W[bs];B[as];W[bs]C[RIGHT])))