Learn the shapes and improve your killing skills. And all other skills too! :-)
This problem could be *how many ways* as well, but I do not like such problems.
(;AP[goproblems]AB[hb]AB[ib]AW[jb]AW[kb]AW[lb]AW[mb]AW[ma]AW[ic]AW[id]AW[hd]AW[gd]AW[gc]AW[gb]AB[jc]AB[kc]AB[nc]AB[nb]AB[na]AB[jd]AB[je]AB[ie]AB[he]AB[ge]AB[fe]AB[fd]AB[fc]AB[ec]AB[eb]AB[ld]AB[md]AB[nd]C[Black to kill.](;B[fa]C[Yes :-)RIGHT])(;B[ga];W[fa](;B[ia];W[ja]C[Ko])(;B[ha]C[Yes :-)RIGHT]))(;B[ha]C[Yes :-)RIGHT])(;B[ia];W[ha](;B[fa]C[Yes :-)RIGHT])(;B[ga];W[fa];B[fb];W[ha];B[ea];W[ja];B[ga]C[Yes :-)RIGHT])(;B[fb];W[ga];B[fa]C[RIGHT]))(;B[ja];W[ha](;B[ka];W[hc])(;B[ia];W[ga]C[White is alive.]))(;B[fb]C[Yes :-)RIGHT])(;B[ka];W[ha]))