(;AB[ar]AB[br]AB[cr]AB[dq]AB[dp]AB[do]AB[dn]AB[cn]AB[bn]AB[em]AB[fn]AW[dr]AW[er]AW[fq]AW[hq]AW[bq]AW[cq]AW[cp]AW[bo]AW[an]AW[bm]AW[cm]AW[dm]AW[ck]AW[ek]AP[goproblems]
(;B[co]
(;W[bp];B[ao];W[ap];B[aq]C[RIGHT])
(;W[ao];B[bp];W[ap];B[aq]C[RIGHT])
(;W[ap];B[aq]C[RIGHT]))
(;B[bp];W[co]
(;B[aq];W[ap])
(;B[ap];W[ao];B[aq];W[am])
(;B[ao];W[ap]))
(;B[aq];W[co]
(;B[ao];W[ap])
(;B[ap];W[ao]))
(;B[ap]
(;W[ao]C[CHOICE];B[co];W[bp];B[aq];W[am])
(;W[co]
(;B[aq];W[ao])
(;B[ao])))
(;B[ao];W[ap]
(;B[aq];W[co])
(;B[co];W[aq])))