(;FF[4]GM[1]SZ[19]AB[oc][pc][qd][qf][qg][re][rg][sf]AW[mb][nc][nd][od][pe][pf][qe][rc][rd];B[rb](;W[qc]C[CHOICE];B[qb](;W[pd]C[CHOICE](;B[sb];W[ob](;B[sd];W[pb];B[sc]C[RIGHT])(;B[pb];W[sd]))(;B[sd];W[sb])(;B[sc];W[sd];B[sb];W[ob])(;B[ob];W[sb];B[pa];W[na](;B[oa];W[ra])(;B[nb])(;B[ra];W[oa])))(;W[ob](;B[sc];W[pd];B[sd]C[RIGHT];W[pb])(;B[sd];W[pd];B[sc]C[RIGHT])))(;W[qb];B[qc];W[sb](;B[ra];W[qa];B[sd];W[sa](;B[rb];W[ra](;B[se]C[RIGHT])(;B[pb];W[pd];B[se];W[ob]))(;B[pb];W[pd];B[se];W[pa]))(;B[sd];W[ra])))