(;GM[1]FF[3]SZ[19]
AW[lb][mb][rb][mc][rc][nd][od][qe][nf][of][pf]AB[la][kb][qb][jc][lc][pc][ld][md][pd][pe]PL[B]C[Black to play and connect underneath.]
(;B[nc];W[oc];B[ob];W[nb];B[na])
(;B[ob]TR[ob];W[nc]))