(;AW[aq]AW[bp]AW[cq]AW[co]AW[dp]AW[dn]AW[en]AW[eo]AB[ap]AB[ao]AB[bo]AB[cn]AB[dm]AB[em]AB[bm]AB[fn]AB[gn]AB[hn]AB[in]AB[jo]AB[jp]AB[jq]AB[jr]AB[ir]AB[hs]AW[hr]AW[gr]AW[gs]AW[ho]AW[io]AW[ip]AW[iq]AW[gp]AB[is]C[Black to play the best endgame.]AP[goproblems]
(;B[fp]
(;W[fq]
(;B[go];W[hq]
(;B[ep];W[eq];B[fo];W[do]C[RIGHT])
(;B[fo];W[ep]C[Black can do better.])
(;B[eq];W[ep]C[Black can do better.]))
(;B[fo];W[ep]
(;B[go];W[hq]C[Black can do better.])
(;B[hq];W[go]C[Black can do better.]))
(;B[ep];W[fo]
(;B[go];W[eq])
(;B[eq];W[er]))
(;B[eq];W[fo]
(;B[go];W[ep])
(;B[ep];W[er])))
(;W[fo];B[go]
(;W[gq];B[ep];W[do];B[dq];W[cp];B[cr];W[bq];B[br]C[RIGHT])
(;W[fq];B[hq]
(;W[ep];B[hp]C[RIGHT])
(;W[hp];B[gq]C[RIGHT])
(;W[gq];B[hp]C[RIGHT]))
(;W[ep];B[hq]
(;W[fq];B[hp]C[RIGHT])
(;W[hp];B[gq]C[RIGHT])
(;W[gq];B[hp]C[RIGHT]))))
(;B[fo];W[fp]C[Black can do better.])
(;B[go];W[fp]C[Black can do better.])
(;B[br]C[NOTTHIS])
(;B[ar]C[NOTTHIS])
(;B[ep];W[fo]
(;B[fp];W[go])
(;B[go];W[fp]))
(;B[fq];W[fo]))