(;AB[gr]AB[gq]AB[fo]AB[en]AB[go]AB[gp]AB[dn]AB[co]AB[bn]AB[bp]AB[ao]AB[ap]AW[hq]AW[hs]AW[gs]AW[ir]AW[js]AW[kr]AW[jq]AW[ip]AW[fn]AW[gn]AW[ho]AW[hn]AW[hp]AW[em]AW[dm]AW[cl]LB[er:A]LB[fr:B]LB[fs:C]LB[es:D]TR[gs]C[How can Black safely seal off her territory in the endgame? All other positions are completely settled and neither side has any ko threats left.]AB[cm]AB[bm]AW[dk]AW[al]AW[bl]AW[am]AW[gl]AB[fm]AW[fl]AW[hr]AW[ks]LB[jl:Tenuki]AP[goproblems]
(;B[er];W[fs]
(;B[fr];W[es]
(;B[cr]
(;W[ds]C[CHOICE]
(;B[dr];W[cs];B[br];W[bs];B[ar]C[Black can get better.])
(;B[cs];W[dr];B[dq];W[eq]
(;B[cq];W[eo]
(;B[ep]C[])
(;B[do];W[ep];B[dp]C[Why seki?]MA[er]MA[fr]MA[gp]MA[go]MA[fo]MA[eo]MA[ep]MA[eq]MA[gq]MA[gr]))
(;B[ep];W[cq]
(;B[dp];W[br])
(;B[bq];W[dp]))
(;B[fq];W[ep]
(;B[cq];W[eo])
(;B[eo];W[cq]
(;B[bq];W[dp])
(;B[dp];W[br])))))
(;W[cs]C[CHOICE];B[bs];W[ds];B[br];W[dr];B[dq]C[]))
(;B[ds];W[dr])
(;B[dr];W[ds]
(;B[cs];W[cr])
(;B[cr];W[cs];B[br];W[bs];B[ar]C[Black can get better.])
(;B[br];W[bs];B[cr];W[cs])))
(;B[dq]
(;W[es]C[CHOICE];B[ds];W[fr];B[fq]C[RIGHT])
(;W[fr]C[CHOICE];B[fq];W[es];B[ds]C[RIGHT]))
(;B[dr]
(;W[es]C[CHOICE];B[ds];W[fr];B[fq]C[RIGHT])
(;W[fr]C[CHOICE];B[fq];W[es];B[ds]C[RIGHT]))
(;B[es];W[fr]
(;B[eq];W[fq];B[fp]C[RIGHT])
(;B[fq];W[eq]
(;B[dq];W[ep]
(;B[dr];W[eo])
(;B[eo];W[dr]))
(;B[ep];W[dq]))))
(;B[fr];W[fs]
(;B[er];W[es]
(;B[cr]
(;W[ds]C[CHOICE]
(;B[dr])
(;B[cs];W[dr];B[dq];W[eq]
(;B[cq];W[eo]
(;B[ep]C[])
(;B[do];W[ep];B[dp]C[Why seki?]MA[er]MA[fr]MA[gp]MA[go]MA[fo]MA[eo]MA[ep]MA[eq]MA[gq]MA[gr]))
(;B[ep];W[cq]
(;B[dp];W[br])
(;B[bq];W[dp]))
(;B[fq];W[ep]
(;B[cq];W[eo])
(;B[eo];W[cq]
(;B[bq];W[dp])
(;B[dp];W[br])))))
(;W[cs]C[CHOICE];B[bs];W[ds];B[br];W[dr];B[dq]C[]))
(;B[ds];W[dr])
(;B[dr]))
(;B[es];W[er])
(;B[dr];W[es]
(;B[ds];W[er];B[eq];W[dq]
(;B[cq];W[dp]
(;B[cr];W[ep]
(;B[eo];W[fq])
(;B[fq];W[eo]))
(;B[ep];W[cr]))
(;B[dp];W[cq]))
(;B[er];W[ds]
(;B[cs];W[cr])
(;B[cr];W[cs];B[br];W[bs];B[ar]C[Black can get better.])
(;B[br];W[bs];B[cr];W[cs];B[ar]C[Black can get better.]))))
(;B[fs];W[fr]C[Are you even trying? :(])
(;B[es];W[er]C[E1 is far too low....])
(;B[jl];W[dr]C[There are no other points on the board! Read the instructions next time.]))