Black 2 was a mistake - a misread of the cut above. Can Black still kill White without ko and keep all his dragons safe?
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
AW[nb][ob][dc][ec][oc][pc][cd][pd][ne][qe][cf][qf][qg][dh][gi][bj][fj][mj][oj][bk][ck][dk][ek][fk][gk][hk][jk][nk][qk][jl][ml][ql][hm][km][mm][nm][bn][gn][in][rn][bo][go][no][ro][cp][fp][gp][qp][cq][qq][cr][dr][pr][qr]AB[pb][qb][fc][jc][nc][qc][ed][fd][qd][re][rf][ch][fh][bi][ei][fi][ii][cj][dj][ej][gj][hj][kj][lj][ok][il][kl][ll][ol][bm][cm][im][jm][lm][pm][qm][rm][cn][en][qn][co][fo][qo][dp][ep][jp][pp][dq][fq][hq][nq][pq][er][or]LB[il:2][hm:1][in:3]
;B[jn]
;W[io]
(;B[fm]
;W[jo]
;B[ko]
;W[kp]LB[jq:A][kq:B]C[Please play A or B.]
(;B[kq]
;W[lp]LB[lq:A]C[Please play at A, or the result will be similar to choice 'A' two moves ago.]
;B[lq]
;W[iq]
(;B[jq]
;W[gq]
;B[gr]
;W[hr]
(;B[ir]
;W[hp]
;B[hs]C[RIGHT Congratulations, killer ;)])
(;B[hp]
;W[gs]TR[hp]C[This was the move I played in the game, it didn't turn out well]
(;B[fr]
;W[ip]
;B[ir]
;W[ho]
;B[hq]
;W[hp]
;B[jr]
;W[es]
;B[hl]
;W[gl]
;B[gm]
;W[fs]
;B[eq]
;W[hs]
;B[hn]LB[hm:Ko?])
(;B[fs]
;W[fr]LB[gr:Ko?])))
(;B[ip]
;W[hp]
;B[jq]
;W[gq]
(;B[gr]
;W[hr]
;B[hs]
;W[is]
;B[gs]
;W[jr]
;B[kr]
;W[es]
;B[fr]
;W[fn]LB[em:A]C[Please play at A.]
;B[em]
;W[eo]
;B[do]
;W[gm]C[This is not a semeai Black wants any part in.])
(;B[hr]
;W[gr]
;B[ir]
;W[fr]
;B[es]
;W[eq]LB[fq:Ko?])))
(;B[jq]
;W[lo]
;B[kn]
;W[kq]TR[ok][ol][pm][qm][rm][qn][qo][pp][nq][pq][or]C[You killed it, now how are you going to save these stones?]
;B[mr]
;W[op]
(;B[kr]C[Yes, unfortunately, this is the best you can do now.])
(;B[oo]
;W[on]
;B[po]
;W[np]
;B[oq]
;W[jr]
;B[ir]
;W[lq]C[Please make your eye in sente now]
;B[lr]
;W[kr]
;B[ns]
;W[ls]LB[pj:A][qj:B]C[Now how to get your other eye? You may try A or B.]
(;B[pj]
;W[qj]
;B[oi]
;W[qi]
;B[nj]
;W[mi]C[White is out and you are toast. :(])
(;B[qj]
;W[pj]
(;B[rj]
;W[pk]
;B[rk]
;W[rl]
;B[sl]
;W[rh]C[Where are you going to go? :(])
(;B[pk]
;W[rj]
;B[qi]
;W[ri]
;B[rk]
;W[rl]
;B[sm]
(;W[sk]LB[rn:X][ro:X][qp:X][qq:X][pr:X][qr:X]TR[sm]C[CHOICE These white stones can now be killed with bent four in the corner, but bent four in the corner is still a ko until there are no ko threats left. :(
You can do better.])
(;W[rp]C[CHOICE Even if White protects against bent four...]
;B[sl]
;W[sk]
;B[pl]
;W[rk]
;B[qh]
;W[rh]
;B[ph]
;W[oh]C[...there is still no way out for these stones. :(]))))))
(;B[jo]
;W[fm]C[White is alive.])
(;B[ip]
;W[fm]C[White is alive.])
(;B[kq]
;W[fm]C[White is alive.])
(;B[jq]
;W[fm]C[White is alive.]))