My good friend, mouse Vlasta, is fighting for her life. Help her to survive, please! Unfortunately she is not very rich and cannot afford more ko threats than her enemies. Her destiny is in your hands!
(;AB[jg]AB[jf]AB[je]AB[ne]AB[nf]AB[ng]AB[mi]AB[lk]AB[ki]AB[ll]AW[oo]AW[on]AW[om]AW[oh]AW[og]AW[of]AW[oe]AW[od]AW[oc]AW[nc]AW[id]AW[ie]AW[if]AW[ig]AW[ih]AW[ic]AW[ko]AW[kn]AW[jj]AW[km]AB[mn]AW[ma]AW[ka]AW[jb]AW[ib]AB[kc]AB[mc]AB[nd]AB[jd]AW[md]AW[kd]AB[mh]AB[kh]AB[lj]AB[mm]AB[nn]AW[no]AW[mo]AW[lo]AW[nb]AW[na]AW[ja]AW[jc]AW[jh]AW[ji]AW[nh]AW[ni]AW[nj]AW[nk]AW[nl]AW[nm]AW[kj]AB[lb]AW[la]AB[li]AW[kb]AW[mb]AW[mj]AW[kk]AW[kl]AW[mk]C[You can set the stone size to large to get better view of the important part of the problem. In symmetric positions, play on the left side please.]AW[ia]AW[oa]AW[ob]AW[oi]AW[oj]AW[ok]AW[ol]AW[jo]AW[io]AW[in]AW[im]AW[il]AW[ik]AW[ij]AW[ii]AW[jk]AW[jl]AW[jm]AW[jn]AP[goproblems]
(;B[lg];W[lf]
(;B[le];W[ke];B[mf];W[kf])
(;B[ke];W[le];B[ld];W[me]))
(;B[le];W[lg];B[ke];W[lc];B[lf];W[kg]
(;B[mg];W[me])
(;B[me];W[mg]))
(;B[lf];W[lg]
(;B[ke]
(;W[kg]C[CHOICE]
(;B[ld];W[lc];B[me];W[mg]
(;B[kf];W[kd];B[mc];W[ml];B[mf];W[lm];B[lh]C[Super! Although Vlasta will have to spend several weeks in hospital now, you saved her life!RIGHT])
(;B[mf];W[kd];B[mc];W[ml];B[kf];W[lm];B[lh]C[Super! Although Vlasta will have to spend several weeks in hospital now, you saved her life!RIGHT])
(;B[mc];W[lm]C[Ow, the position is ko now!]TR[lc]))
(;B[me];W[lc];B[mg])
(;B[mg];W[me];B[ld];W[lc])
(;B[le];W[mg];B[ld];W[lc]))
(;W[mg];B[mf];W[kg];B[ld];W[lc];B[me];W[kd];B[mc];W[ml];B[kf]))
(;B[me]C[NOTTHISRIGHT])
(;B[mf]C[CHOICENOTTHIS])
(;B[mg]C[NOTTHIS])
(;B[kf];W[me])
(;B[kg];W[mg]
(;B[ke];W[mf];B[ld];W[lc])
(;B[le];W[ke])
(;B[me];W[ke];B[ld];W[lc]))
(;B[le];W[kg]
(;B[mg];W[me])
(;B[me];W[mg];B[ld];W[lc])))
(;B[ke];W[lf]
(;B[ld];W[me];B[le];W[mf];B[mg];W[lc])
(;B[le];W[me];B[ld];W[lc])
(;B[me];W[lc];B[le];W[lg]))
(;B[kf];W[me]
(;B[lg];W[lf])
(;B[mf];W[lf])
(;B[lf];W[lg]))
(;B[ld];W[lc];B[le];W[lf]
(;B[me];W[ke])
(;B[ke];W[me]))
(;B[kg];W[me]
(;B[mf];W[lf])
(;B[lf];W[ke]
(;B[mf];W[lg])
(;B[lg];W[mf])))
(;B[me]C[NOTTHIS])
(;B[mf]C[NOTTHIS])
(;B[mg]C[NOTTHIS]))