(;AB[pa]AB[pb]AB[ob]AB[la]AB[ka]AB[kb]AB[lc]AB[ld]AB[le]AB[ke]AB[me]AB[mf]AB[mg]AB[nf]AB[qc]AB[qd]AB[qe]AB[qg]AB[pg]AB[nh]AB[oh]AB[oi]AW[ng]AW[og]AW[of]AW[pf]AW[pe]AW[ne]AW[pd]AW[pc]AW[oc]AW[md]AW[mc]AW[lb]AW[ma]AW[mb]AW[nb]AW[oa]C[Black to kill. Tenuki at T if white is already dead]AB[qf]AB[qb]LB[ri:T]AP[goproblems]
(;B[oe];W[nd]C[white lives])
(;B[na];W[nd]C[white lives])
(;B[od];W[nd]C[white lives])
(;B[nc];W[nd]C[White lives])
(;B[nd]
(;W[od]
(;B[oe]C[RIGHT]
(;W[nc]LB[ri:T]C[Tenuki at T if white is dead]
(;B[ne]C[RIGHT])
(;B[na]C[RIGHT])
(;B[ri];W[ne]C[White has two eyes now]))
(;W[na];B[nc]C[RIGHT]))
(;B[na];W[nc]C[White has two eyes]))
(;W[na]LB[ri:T]C[Tenuki at T if white is dead now]
(;B[nc]C[This kills, but you could've tenuki'd insteadRIGHT])
(;B[ri]C[RIGHT]))
(;W[nc];B[oe];W[od]
(;B[ne]C[RIGHT])
(;B[na]C[RIGHT]))
(;W[oe]C[White kills himself playing here, by filling in what could've been eyes]
(;B[na];W[nc];B[od]C[RIGHT])
(;B[od];W[nc];B[na]C[RIGHT])
(;B[nc];W[od];B[na]C[RIGHT])))
(;B[ri];W[nd]C[Nope, he can still make two eyes]))