(;GM[1]FF[3]SZ[19]
AW[sb][rc][re][qf][rf]AB[mb][nc][oc][sc][pd][rd][qe][se]PL[B]C[Black to play and kill.];B[sd];W[qc]
;B[qd];W[ra];B[qb];W[pb];B[pc];W[rb];B[pa];W[ob];B[oa];W[qa];B[na])