(;AB[cs]AB[cr]AB[cq]AB[cp]AB[co]AB[cn]AB[cm]AB[dl]AB[el]AB[fm]AB[gm]AB[gn]AB[go]AB[gp]AB[fp]AB[hq]AB[hr]AW[dm]AW[em]AW[fn]AW[fo]AW[eo]AW[do]AW[dn]AW[dp]AW[dr]AW[dq]AW[fq]AW[gq]AW[fs]TR[fs]AP[goproblems]
(;B[ds]
(;W[es]C[CHOICE];B[eq];W[er];B[gr]C[RIGHT])
(;W[gr];B[er];W[es];B[eq]LB[ep:A]C[White cannot play at ARIGHT]))
(;B[eq];W[er];B[gr];W[fr];B[ep];W[ds]))