(;
AB[mc][qd][qe][le][me][ne][of][pf][qh]
AW[mb][nc][pc][qc][oe][pe][kf][lf][nf][ng]
C[Black plays.

Source:
    "Good and Bad Style"
    Go World #20, p. 47.]
(;
B[lc]
C[Bad style.];
W[lb];B[jc];W[je]
C[Black's group is heavy.]
)
    (;
    B[nb]
    C[The sacrifice tesuji to settle Black's group.]
    (;
    W[ob]
    C[If White accepts the sacrifice, ...];
    B[nd]
    C[... Black has a couple forcing moves.];
    W[oc];B[lb];W[na];B[kc]
    C[Black fixes his shape.  Compare this shape with the 1st variation.]
    )
        (;
        W[lc]
        C[No better.];
        B[oc]
        C[Depending on the outside, Black may even want to cut here.];
        W[md];B[pd]
        LB[ob:A]
        TR[oe][pe]
        C[Black connects by capturing 2 marked stones.  And White owes another move at A to save the 2 corner stones.]
        )
    )
)

