A comment on an added variation on problem 17771 inspired me to investigate its outcome. There were so many interesting variations that I decided to make it its own problem. Comments, questions, and corrections to make this fascinating situation clear are all welcome.
(;AP[goproblems]AB[jg]AB[ih]AB[ii]AB[kh]AB[ki]AB[li]AB[mi]AB[mj]AB[hi]AB[gi]AB[gj]AB[fk]AB[fl]AB[nk]AB[nl]AB[gm]AB[mm]AB[hn]AB[in]AB[jn]AB[kn]AB[ln]AB[jm]AB[jk]AW[gk]AW[hk]AW[kk]AW[lk]AW[mk]AW[hj]AW[ij]AW[jj]AW[kj]AW[lj]AW[ji]AW[jh]AW[hm]AW[im]AW[km]AW[lm]AW[jl]TR[kk]C[W has just played the marked stone. B to kill. ](;B[ll](;W[gl](;B[kl];W[il]C[W lives.])(;B[il];W[hl];B[kl]C[W dies. Good job!RIGHT]))(;W[kl]C[CHOICE](;B[ml](;W[gl](;B[il](;W[hl];B[ik]C[W dies. Good job!RIGHT])(;W[ik];B[hl]C[W dies. Good job!RIGHT]))(;B[ik];W[il])(;B[hl];W[il]))(;W[ik](;B[hl]TR[gl]TR[il]C[Miai to kill. W dies. Good job!RIGHT])(;B[gl];W[hl])(;B[il];W[hl])))(;B[il];W[hl]C[W lives. ])(;B[hl];W[il]TR[gl]TR[ml]C[Miai for a second eye; W lives. ])(;B[gl];W[hl]TR[ik]TR[ml]C[Miai for life; W lives. ]))(;W[il](;B[kl];W[gl]C[W lives.])(;B[ml];W[gl]C[W lives.])(;B[gl]TR[kl]TR[ml]C[Miai to kill. W dies. Good job!RIGHT]))(;W[ml](;B[kl](;W[ik](;B[hl]TR[il]TR[gl]C[Miai to kill. W dies. Good job!RIGHT])(;B[gl];W[hl])(;B[il];W[hl]))(;W[il];B[gl])(;W[gl];B[il])(;W[hl];B[ik]))(;B[il];W[kl]TR[ik]TR[hl]C[Miai for life. B can capture two stones in sente, but W lives. ])(;B[hl];W[kl]TR[ik]TR[il]C[Miai for life. B can capture two stones in sente, but W lives. ])(;B[gl];W[kl]))(;W[hl](;B[ik]TR[kl]TR[ml]C[Miai to kill. W dies. Good job!RIGHT])(;B[kl];W[ik])(;B[ml];W[ik])(;B[gl];W[ik]))(;W[ik](;B[hl]TR[gl]TR[il]MA[kl]MA[ml]C[Both sets of marked points are miai to prevent W from getting a second eye. W dies. Good job!RIGHT])(;B[kl];W[hl]C[W lives (and avoids creating a ko threat).])))(;B[kl];W[ll](;B[hl];W[il]C[W lives.])(;B[il];W[ik]C[B can capture two stones in gote, but W lives. ]))(;B[il];W[ik](;B[hl];W[ll]C[W lives. (W could have played N8 instead of M8 for one more point, but would create a massive ko threat in the process - probably not best.)])(;B[ll];W[hl]C[B can capture two stones in gote, but W lives. ]))(;B[hl];W[ll];B[il];W[ik]C[W lives.])(;B[ik];W[il]TR[gl]TR[ll]C[Miai for life; W lives.])(;B[gl];W[ll];B[il];W[ik]C[B can capture two stones in gote, but W lives.])(;B[ml];W[ll];B[il];W[ik]C[B can capture two stones in gote, but W lives. ]))