(;AB[fq]AB[fr]AB[fs]AW[es]AW[er]AW[dr]AW[cr]AW[br]AW[ar]AW[eq]AW[dq]AW[cq]AW[bq]AW[aq]AB[fp]AB[ep]AB[dp]AB[cp]AB[bp]AB[ap]AB[hs]AB[hr]AB[hq]AB[hp]AW[gq]AW[gp]AW[go]AW[ho]AW[io]AW[iq]AW[ip]AW[ir]AW[is]AB[bo]AB[bn]AB[an]AB[cn]AB[dn]AB[do]AW[fo]AW[eo]AW[en]AW[em]AW[dm]AW[cm]AW[bm]AW[am]AW[fm]AW[gm]AW[gn]AW[hm]AW[im]AW[in]AB[js]AB[jr]AB[jq]AB[jp]AB[jo]AB[jn]AB[jm]AB[jl]AB[il]AB[gl]AB[hl]AB[fl]AB[el]AB[dl]AB[cl]AB[bl]AB[al]C[An endgame problem.]AP[goproblems]
(;B[bs];W[cs]
(;B[gr]C[RIGHT])
(;B[gs];W[gr]))
(;B[cs];W[bs]
(;B[gr]C[RIGHT])
(;B[gs];W[gr]))
(;B[gr]C[RIGHT])
(;B[as];W[gr]
(;B[bs];W[cs];B[gs])
(;B[cs];W[bs];B[gs])
(;B[ds];W[gs]
(;B[bs];W[cs])
(;B[cs];W[bs]))
(;B[gs]))
(;B[ds];W[gr]
(;B[as];W[gs]
(;B[bs];W[cs])
(;B[cs];W[bs]))
(;B[bs];W[cs];B[gs])
(;B[cs];W[bs];B[gs])
(;B[gs]))
(;B[gs];W[gr]))