(;
AB[kc][pd][qd][sd][oe][qe][re][pf]
AW[rb][rc][rd][gc][nc][qc][md][qf]
C[Black plays.

Source:
Go World #23, p. 45
"Good and Bad Style"]
(;
B[pc]
C[Black has some forcing moves, but ...];
W[pb];B[oc];W[ob];B[mb];W[nb]
C[... this sequence accomplishes very little from the original top side aji.]
)
    (;
    B[nb]
    C[The tesuji.]
    (;
    W[ob]
    C[White must block on this side.];
    B[mb]
    C[Now this forcing move is useful.];
    W[pc];B[ic]
    C[Black's shape is nice.

Compare this result with the previous variation, in which the marked stone is White's.]
    TR[nb]
    )
        (;
        W[mb]
        C[Note that White cannot block on this side.];
        B[pb]
        C[Black has this tesuji to capture the 4 corner stones.]
        )
    )
)

