(;AB[jb]AB[kf]AB[oe]AB[pc]AB[nd]AB[nc]AB[pe]AB[qg]AB[og]AB[oh]AW[ng]AW[nf]AW[ne]AW[md]AW[mc]AW[le]AW[ke]AW[kd]AB[lf]AW[kb]AB[lg]AB[jg]AB[jh]AB[ji]AB[ih]AW[je]AW[jf]AW[if]AW[ig]AW[hf]AB[hg]AB[gg]AB[gf]AW[jc]AW[kc]AB[ic]AB[ib]AB[jd]AB[id]AB[hd]AB[gd]TR[lf]C[White to live. No ko or seki.]AB[mi]AB[hh]AP[goproblems]
(;W[lb];B[nb])
(;W[mb];B[nb]
(;W[lc];B[la]TR[ka]TR[ma])
(;W[la];B[lc]))
(;W[lc];B[mb])
(;W[nb];B[ob]
(;W[ma];B[lb]
(;W[lc];B[ka]
(;W[la]C[RIGHT])
(;W[mb]C[RIGHT])
(;W[ja];B[ia]
(;W[la]C[RIGHT])
(;W[mb]C[RIGHT])))
(;W[la];B[lc])
(;W[mb];B[lc]))
(;W[lb];B[na]C[Only ko.]AB[kp])
(;W[mb];B[na]
(;W[ma];B[ka];W[la];B[lc])
(;W[lc];B[la]TR[ka]TR[ma]))
(;W[la];B[na]
(;W[ma];B[mb])
(;W[mb];B[lc])
(;W[lb];B[mb]))
(;W[na];B[lb]C[]
(;W[lc];B[ka]
(;W[la];B[ma]
(;W[mb]C[RIGHT])
(;W[ja];B[ia];W[mb]C[RIGHT]))
(;W[ja];B[la])
(;W[mb];B[la]))
(;W[mb];B[la]
(;W[ka];B[lc]C[Seki])
(;W[lc];B[ka]))
(;W[la];B[lc]
(;W[mb]C[RIGHT])
(;W[ka];B[mb]C[Dead]))
(;W[ka];B[mb]
(;W[ma];B[lc])
(;W[oa];B[pa])
(;W[lc];B[oa])))
(;W[lc];B[mb])
(;W[ka];B[mb]))
(;W[ma];B[nb]
(;W[mb];B[ka]
(;W[la];B[lc])
(;W[lc];B[la]))
(;W[lb];B[ka])
(;W[na];B[ob]))
(;W[la];B[nb]
(;W[mb];B[lc])
(;W[lc];B[mb])
(;W[ma];B[mb]))
(;W[na];B[nb]
(;W[mb];B[la]
(;W[ka];B[ma];W[lb];B[ma])
(;W[ma];B[ka]))
(;W[lb];B[mb])
(;W[lc];B[mb])
(;W[ma];B[mb]))
(;W[ka];B[mb])
(;W[mf];B[mb]TR[me]C[This is a false eye - filling up the outside liberties would force white to fill in.]MA[mg]MA[nh]MA[of])
(;W[ge];B[mb]
(;W[fe];B[he])
(;W[he];B[fe])
(;W[lb];B[nb]))
(;W[nh]
(;B[ni]C[CHOICE]
(;W[lh];B[mb]
(;W[kh];B[mh])
(;W[mh];B[li]))
(;W[nb];B[ob]
(;W[ma]C[RIGHT])
(;W[na]C[RIGHT]))
(;W[mb];B[nb])
(;W[kh];B[mb])
(;W[mh];B[mb])
(;W[li];B[mb]))
(;B[mb];W[ni]C[White escapes, still needs a second eye of course.RIGHT]))
(;W[mh];B[mb]
(;W[ni];B[nh]
(;W[lh];B[mg])
(;W[mg];B[lh])
(;W[li];B[mg])
(;W[lb];B[nb]))
(;W[lh];B[li])
(;W[nh];B[ni])
(;W[li];B[lh];W[ni];B[nh]
(;W[mj];B[mg])
(;W[mg];B[mj]))
(;W[mg];B[lh]
(;W[ni];B[nh])
(;W[nh];B[ni])
(;W[li];B[ni])
(;W[lb];B[nb])))
(;W[lh];B[mb]
(;W[nh];B[ni]
(;W[kh];B[mh])
(;W[mh];B[li]))
(;W[mh];B[li])
(;W[kh];B[mh])
(;W[li];B[mh])
(;W[lb];B[nb]C[Just one eye and there is no escape])
(;W[ki];B[mh]))
(;W[of];B[mb]
(;W[pf];B[qf])
(;W[lb];B[nb])
(;W[nh];B[ni]))
(;W[he];B[mb]
(;W[ge];B[fe])
(;W[lb];B[nb]))
(;W[kh];B[mb]
(;W[kg];B[lh])
(;W[lb];B[nb])
(;W[lh];B[mh])
(;W[ki];B[lh]))
(;W[ob];B[nb]C[Black handles this comfortably.])
(;W[oc];B[nb]C[Black handles this comfortably.])
(;W[oa];B[mb]
(;W[lb];B[nb])
(;W[nb];B[ob]
(;W[lb];B[na])
(;W[na];B[ma]))
(;W[ob];B[nb]C[White cannot connect his two groups, black is fairly safe from attack since he is well connected.])))