(;AW[bc]AW[cc]AW[dd]AW[ce]AW[de]AW[ee]AW[gf]AW[eg]AB[dc]AB[gc]AB[bd]AB[cd]AB[ed]AB[fd]AB[be]AB[cg]AB[di]C[White threatens to capture either the 3 stones on the left or the single stone at D17. Save both and prevent White from linking up with the canter stones.]
(;B[bb];W[db];B[ec];W[cb]
(;B[cf];W[ba]C[White lives in gote, you managed to separate the corner from the center in sente.RIGHT])
(;B[bf];W[ba]C[White lives in gote, you managed to separate the corner from the center in sente.RIGHT])
(;B[ac];W[bf])
(;B[eb];W[bf]))
(;B[cf];W[ec];B[db];W[eb])
(;B[bf];W[ec];B[db];W[eb])
(;B[cb];W[bb];B[db];W[bf])
(;B[db];W[bf])
(;B[ac];W[db];B[ec];W[ab];B[bb];W[cb];B[aa];W[bf]))