(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]SZ[19]KM[0.00]PW[White]PB[Black]AW[cc][qj][cl][em][en][fp][dq]AB[pd][dn][co][jp][qp][bq][oq][cr]C[how can you most effectively expand the strong group in the lower left?
];W[df]C[RIGHT not only does this enclose the corner it extends nicely from the left side group.])