(;AB[ba]AB[bb]AB[cc]AB[dd]AB[dc]AB[cb]AW[bc]AW[cd]AW[ce]AW[cf]AW[cg]AW[ch]AW[bg]AB[bh]AB[ah]AW[bi]AW[bj]AW[aj]AB[bk]AB[bl]AB[al]AB[ck]AB[cj]AB[ci]AB[di]AB[dh]AB[dg]AB[df]AB[de]AB[dj]AB[dk]AB[dl]AB[cl]AB[db]AB[da]AB[ca]AB[ae]AB[el]AB[fl]AB[ek]AB[fk]AB[gl]AB[gk]AB[gj]AB[gi]AB[gh]AB[gg]AB[gf]AB[ge]AB[gd]AB[gc]AB[gb]AB[ga]AB[fa]AB[ea]AB[eb]AB[fb]AB[fc]AB[ec]AB[fd]AB[ed]AB[ff]AB[fe]AB[ee]AB[ef]AB[fg]AB[eg]AB[fh]AB[eh]AB[fi]AB[ei]AB[fj]AB[ej]AW[as]AW[ar]AW[aq]AW[ao]AW[ap]AW[an]AW[am]AW[bm]AW[cm]AW[dm]AW[em]AW[fm]AW[gm]AW[gn]AW[go]AW[gp]AW[gq]AW[gr]AW[gs]AB[bs]AB[br]AB[bq]AB[bp]AB[bo]AB[bn]AB[cn]AB[dn]AB[en]AB[fn]AB[fo]AB[fp]AB[fq]AB[fr]AW[co]AW[do]AW[eo]AW[ep]AW[eq]AW[er]AW[es]AW[ds]AW[cs]AW[cr]AW[cp]AW[cq]AW[dp]AW[dq]AW[dr]AB[hr]AB[hq]AB[hp]AB[ho]AB[hn]AB[hm]AB[hl]AB[is]AB[ir]AB[iq]AB[io]AB[ip]AB[in]AB[im]AB[il]AB[ik]AB[ij]AB[ih]AB[ii]AB[ig]AB[if]AB[ie]AB[id]AB[ic]AB[ia]AB[ib]AB[hd]AB[hj]LB[fs:a]LB[hs:b]C[please kill all the white stones.FORCE]AP[goproblems]
(;B[fs]LB[ad:a]LB[be:b]LB[af:c]LB[ag:d]C[FORCE]
(;W[ad]LB[be:a]LB[ag:b]C[FORCE]
(;B[be]LB[bd:a]C[FORCE];W[bd]AW[bd]C[FORCE]LB[ak:a]
(;B[bd]AW[bd]LB[ag:a]C[FORCE];W[ag])
(;B[ak]C[RIGHT]))
(;B[ag]LB[be:a]C[FORCE];W[be]LB[af:a]C[FORCE];B[af]C[RIGHT]))
(;W[be]LB[ac:a]LB[ad:b]LB[af:c]C[FORCE]
(;B[ac]LB[af:a]C[FORCE];W[af]LB[bd:a]C[FORCE];B[bd]LB[ad:a]C[FORCE];W[ad]C[It's a ko, but black can do better])
(;B[ad]LB[af:a]C[FORCE];W[af]LB[ac:a]C[FORCE];B[ac]LB[ag:a]C[FORCE];W[ag])
(;B[af]LB[ad:a]LB[ag:b]C[FORCE]
(;W[ad]LB[ag:a]C[FORCE];B[ag]C[RIGHT])
(;W[ag]LB[ac:a]LB[ad:b]C[FORCE]
(;B[ac]C[RIGHT])
(;B[ad]C[RIGHT]))))
(;W[af]LB[be:a]C[FORCE];B[be]LB[ad:a]LB[bd:b]C[FORCE]
(;W[ad]LB[ab:a]C[FORCE];B[ab]LB[bd:a]C[FORCE];W[bd]LB[ac:a]C[FORCE];B[ac]C[RIGHT])
(;W[bd]LB[ac:a]LB[ad:b]C[FORCE]
(;B[ac]LB[ad:a]C[FORCE];W[ad]LB[ab:a]C[FORCE];B[ab]C[RIGHT])
(;B[ad]LB[ac:a]C[FORCE];W[ac]LB[ab:a]C[FORCE];B[ab]LB[bf:a]C[FORCE];W[bf]LB[ae:a]C[FORCE];B[ae]LB[ag:a]C[FORCE];W[ag])))
(;W[ag]LB[ac:a]LB[bd:b]C[FORCE]
(;B[ac]C[RIGHT])
(;B[bd]LB[be:a]C[FORCE];W[be]LB[ac:a]C[FORCE];B[ac]LB[af:a]C[FORCE];W[af]LB[bf:a]C[FORCE];B[bf]C[RIGHT])))
(;B[hs]LB[fs:a]C[FORCE];W[fs]))