(;AB[cc]AB[cd]AB[dc]AB[ec]AB[fa]AB[fb]AB[gc]AB[gd]AB[hc]AB[ge]AB[be]AB[bf]AB[cg]AB[ch]AB[dh]AB[eh]AB[gg]AB[fg]AB[hh]AB[gi]AB[jh]AB[ji]AB[kj]AB[li]AB[lh]AB[mg]AB[ng]AB[of]AB[ne]AB[me]AB[lc]AB[mc]AB[nc]AB[nb]AB[na]AW[ga]AW[hb]AW[lb]AW[ma]AW[ic]AW[id]AW[ie]AW[he]AW[ce]AW[cf]AW[ed]AB[fd]AW[dd]AW[fe]AW[dg]AW[eg]AW[ef]AW[ff]AW[gf]AW[hg]AW[ig]AW[jg]AW[kh]AW[mf]AW[le]AW[ld]AW[kc]AW[kd]AB[ha]AB[ia]AB[ib]AB[ja]AB[jb]AB[ka]AB[la]AB[kb]AB[jc]AB[jd]AB[je]AB[hf]AB[if]AB[jf]AB[ke]AB[kf]AB[kg]AB[lf]C[Black to play and kill all white stones]AP[goproblems]
(;B[de];W[lg]
(;B[jb]
(;W[kb]
(;B[ib];W[jc]
(;B[gb]
(;W[hf]
(;B[jf]
(;W[je];B[kf]C[CHOICERIGHT])
(;W[kf];B[je]C[CHOICERIGHT]))
(;B[kf];W[jf])
(;B[je];W[jf]))
(;W[je]
(;B[kf]
(;W[hf];B[jf]C[CHOICERIGHT])
(;W[jf];B[hf]C[CHOICERIGHT]))
(;B[hf];W[lf])))
(;B[je];W[ja])
(;B[kf];W[ja])
(;B[jf];W[ja])
(;B[hf];W[ja])
(;B[mb];W[ja])
(;B[ja];W[ka])
(;B[ka];W[ia])
(;B[ia];W[ka]
(;B[gb];W[mb])
(;B[ha];W[ja])
(;B[mb];W[ja];B[gb];W[ha]))
(;B[ha];W[ia]))
(;B[kf];W[ib])
(;B[jf];W[ib])
(;B[je];W[ib])
(;B[hf];W[ib]))
(;W[ib];B[kb]C[RIGHT])
(;W[jc]
(;B[ib]C[RIGHT])
(;B[kb]C[RIGHT])))
(;B[kf];W[jb])
(;B[jf];W[jb])
(;B[ia];W[ib])
(;B[ka];W[kb])
(;B[gb];W[ib])
(;B[mb];W[kb])
(;B[hf];W[jb])
(;B[je];W[jb]))
(;B[ih];W[de])
(;B[hd];W[de])
(;B[md];W[de])
(;B[gb];W[de])
(;B[mb];W[de])
(;B[ki];W[de])
(;B[nf];W[de])
(;B[lg];W[de])
(;B[df];W[lg])
(;B[ee];W[lg]))