(;AB[cf]AB[df]AB[ef]AW[bf]AB[bg]AW[bh]AW[ch]AW[dg]AW[cg]AB[dh]AB[di]AW[eh]AB[eg]AB[fg]AB[fh]AB[fi]AB[fj]AB[ek]AB[dk]AB[ck]AB[dl]AW[ce]AW[cd]AW[cc]AW[de]AW[ee]AW[ff]AW[fe]AW[gg]AW[gh]AW[gi]AW[gj]AW[fk]AW[fl]AW[cm]AW[cl]AW[dn]AW[en]AW[cn]C[White to kill]AP[goproblems]
(;W[cj];B[ei];W[dj];B[ci]
(;W[bj];B[bi];W[ag];B[ai]
(;W[bk];B[ah];W[bg])
(;W[ah];B[bk])
(;W[bg];B[bk])
(;W[be];B[bk]))
(;W[bi];B[bj];W[bk];B[ej];W[cj];B[aj]
(;W[bl];B[dj]LB[jj:T]C[tenuki?]
(;W[jj];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[ag]C[RIGHT])
(;W[be]C[RIGHT])
(;W[af];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[ae]C[RIGHT];B[ah];W[ag];B[ai];W[bg])
(;W[ah]C[RIGHT])
(;W[ak]C[RIGHT])
(;W[bd];B[ah];W[ag];B[ai];W[bg]C[RIGHT]))
(;W[ak];B[dj]
(;W[bl]C[RIGHT])
(;W[am]C[RIGHT])
(;W[al]C[RIGHT])
(;W[bm]C[RIGHT]))
(;W[al];B[dj]LB[jj:T]C[tenuki?]
(;W[jj];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[ag]C[RIGHT])
(;W[ak]C[RIGHT])
(;W[ah]C[RIGHT])
(;W[af]C[];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[be]C[RIGHT])
(;W[ae]C[RIGHT])
(;W[bd]C[RIGHT])))
(;W[bk];B[bi];W[ag];B[bj]))
(;W[ei];B[ej];W[cj];B[ci]
(;W[bi];B[bj];W[bk];B[aj]
(;W[bl];B[dj]LB[jj:T]C[Tenuki?]
(;W[jj];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[ag]C[RIGHT])
(;W[be]C[RIGHT])
(;W[ah]C[RIGHT])
(;W[af];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[ae]C[RIGHT])
(;W[bd]C[RIGHT])
(;W[ak]C[RIGHT]))
(;W[ak];B[dj]C[]
(;W[al]C[RIGHT])
(;W[bl]C[RIGHT])
(;W[am]C[RIGHT])
(;W[bm]C[RIGHT]))
(;W[al];B[dj]LB[jj:T]C[tenuki?]
(;W[jj];B[ah];W[ag];B[ai];W[bg])
(;W[be]C[RIGHT])
(;W[ag]C[RIGHT])
(;W[af];B[ah];W[ag];B[ai];W[bg];B[be])
(;W[ae];B[ah];W[ag];B[ai];W[bg]C[RIGHT])
(;W[ah]C[RIGHT])
(;W[bd]C[RIGHT])
(;W[ak]C[RIGHT])
(;W[ai];B[ah])))
(;W[bj];B[bi];W[ag];B[ai]
(;W[bk];B[ah];W[bg];B[be])
(;W[ah];B[bk])
(;W[bg];B[bk])
(;W[be];B[bk])))
(;W[ej];B[ei])
(;W[dj];B[cj])
(;W[ci];B[cj])
(;W[bk];B[ci])
(;W[aa]C[Congratulations! you found the a19 tesuji!]AW[ci]AW[cj]AW[bk]AW[bj]AW[dj]))