(;AW[db]AW[af]AW[bf]AW[ae]AW[bd]AW[ce]AW[cd]AW[cc]AW[fb]AW[gb]AW[hb]AW[ib]AW[jc]AW[kc]AW[lc]AW[nb]AW[lb]AB[nc]AB[ob]AB[pc]AB[nd]AB[ld]AB[dc]AB[ec]AB[cf]AB[de]AB[dd]AB[bg]AB[ag]AB[fc]AB[gc]AB[hc]AB[ic]AB[jd]AW[mc]AB[md]AB[kd]AB[rc]AB[oe]AB[pe]AW[qf]AB[qe]AB[rb]AW[sc]AW[re]AW[se]AB[rd]AB[sb]AW[rg]AW[pg]AB[of]AW[pf]AB[dg]AB[eg]AB[fg]AB[gg]AB[hg]AB[ig]AB[jg]AB[kg]AB[lg]AB[mg]AB[ng]AB[cg]C[Play your best endgame.]AP[goproblems]
(;B[eb]
(;W[ea]
(;B[cb];W[da]
(;B[fa];W[ga]
(;B[ac];W[ab]
(;B[ca];W[fa];B[bb];W[bc];B[aa]
(;W[oa];B[pa];W[na]
(;B[ja]
(;W[jb];B[la];W[ka];B[kb];W[mb];B[ia]C[Ko for sekiCHOICERIGHT])
(;W[ka];B[ma]
(;W[jb];B[mb];W[sd];B[la];W[ia]C[RIGHT])
(;W[mb];B[jb]C[RIGHT])))
(;B[sd];W[jb])
(;B[ka];W[ja])
(;B[la];W[ka];B[ja];W[ma])
(;B[ma];W[mb];B[ka];W[ja]))
(;W[na]
(;B[oa];W[jb];B[sd]C[RIGHT])
(;B[sd];W[oa];B[pa];W[jb])))
(;B[bb];W[bc];B[aa];W[ca]))
(;B[ca];W[fa];B[ac];W[ab];B[bb];W[bc];B[aa]
(;W[oa];B[pa];W[na]
(;B[ja]
(;W[jb];B[la];W[ka];B[kb];W[mb];B[ia]C[Ko for sekiCHOICERIGHT])
(;W[ka];B[ma]
(;W[jb];B[mb];W[sd];B[la];W[ia]C[RIGHT])
(;W[mb];B[jb]C[RIGHT])))
(;B[sd];W[jb])
(;B[ka];W[ja])
(;B[la];W[ka];B[ja];W[ma])
(;B[ma];W[mb];B[ka];W[ja]))
(;W[na]
(;B[oa];W[jb];B[sd]C[RIGHT])
(;B[sd];W[oa];B[pa])))
(;B[bb];W[ac]))
(;B[ac];W[ab]
(;B[fa];W[ga]
(;B[ca];W[fa];B[bb];W[bc];B[aa]
(;W[oa];B[pa];W[na]
(;B[ja]
(;W[jb];B[la];W[ka];B[kb];W[mb];B[ia]C[Ko for sekiCHOICERIGHT])
(;W[ka];B[ma]
(;W[jb];B[mb];W[sd];B[la];W[ia]C[RIGHT])
(;W[mb];B[jb]C[RIGHT])))
(;B[sd];W[jb])
(;B[ka];W[ja])
(;B[la];W[ka];B[ja];W[ma])
(;B[ma];W[mb];B[ka];W[ja]))
(;W[na]
(;B[oa];W[jb];B[sd]C[RIGHT])
(;B[sd];W[oa];B[pa])))
(;B[bb];W[bc];B[aa];W[ca]))
(;B[ca];W[fa];B[bb];W[bc];B[aa];W[oa];B[pa];W[na];B[sd]C[Could do better.])
(;B[bb];W[bc];B[aa];W[ca]))
(;B[ca];W[fa];B[ac];W[ab];B[bb];W[bc];B[aa];W[oa];B[pa];W[na];B[sd]C[Could do better.])
(;B[bb];W[ac]))
(;B[na];W[cb]))
(;W[ca]C[Better play for white.];B[na];W[mb];B[fa];W[ga];B[ea];W[ma];B[da];W[cb];B[oa];W[sd]C[RIGHT]))
(;B[na];W[eb]))