(;GM[1]FF[3]SZ[19]
AW[ra][pb][qb][nc][oc][qc][rd][qe][re][rf]AB[rb][pc][rc][pd][qd][pe][of][qf][qg][rg]PL[B]C[Black to play and win the capturing race.]
;B[sb]
(;W[se];B[sg];W[sc];B[sd])
(;W[qa];B[ob];W[nb];B[sf]))