(;
AB[ha][hb][hc][hd][id][jd][kd][md][me][od][pc][qd][pe][rc][qb][ob][nb][ma]
AW[qa][rb][oc][nc][mc][mb][lc][kc][jc][ic][ka][ib][ia]
C[Black plays.

Source:
    Good and Bad Style
    Go World #15, p. 39]
(;
B[la]
C[Normally, pushing in from the outside here would kill White.]
(;
W[lb]
C[Maybe Black expects this incorrect defense?];
B[jb]
(;
W[na];B[ma]
C[After this throw-in, White cannot make another eye along the top edge.]
)
    (;
    W[oa]
    C[A stylish move, but doesn't change the result.];
    B[pb]
    C[Black just calmly connects.]
    )
)
    (;
    W[jb]
    C[But Black has not completely read out this defense!];
    B[lb]
    C[Again, normally Black can ruin White's 2nd eye here, but ...];
    W[na];B[oa];W[kb];B[na];W[pb]
    C[... this snapback saves the day.];
    B[pa];W[pb];B[ob]
    C[And even if White cannot win the ko, White trivially lives along the top with the bulk of the group.]
    )
)
    (;
    B[jb]
    C[Another standard way to ruin White's eye-shape.  But unlike the previous variation, Black's move here works!]
    (;
    W[kb];B[la];W[na]
    C[Now this throw-in doesn't threaten to make an eye, or catch Black in a snapback.  So White dies.]
    )
        (;
        W[la]
        C[No better.];
        B[kb]
        C[Again White dies.]
        )
    )
)

