(;AB[bq]AB[bp]AB[co]AB[bn]AB[dp]AB[dq]AB[fq]AB[gq]AB[iq]AB[fo]AW[aq]AW[br]AW[cq]AW[dr]AW[er]AP[goproblems]
(;W[cs];B[fr];W[es]C[RIGHT])
(;W[fr]
(;B[ar]C[CHOICE];W[as];B[cs]
(;W[cr];B[gr];W[fs];B[ds])
(;W[ds];B[cr]
(;W[bs];B[cr])
(;W[ar];B[ap];W[bs];B[cr];W[cs];B[gr])))
(;B[gr]C[Mistake for Black];W[cs]))
(;W[ar];B[fr]
(;W[es];B[cs];W[cr];B[bs])
(;W[bs];B[es]
(;W[cr];B[ds])
(;W[ds];B[cr];W[cs];B[cp]))
(;W[cs];B[es];W[ds];B[fs]))
(;W[cr];B[fr]
(;W[es];B[cs]
(;W[ar];B[bs])
(;W[bs];B[ar];W[as];B[ap]))
(;W[bs];B[es];W[ds];B[ar];W[as];B[ap])
(;W[ar];B[bs]
(;W[cs];B[es])
(;W[es];B[cs]))))