(;
AB[nb][pb][qb][rb][qc]
AW[jc][lc][nc][nd][pc][pd][rc][rd][qd][qh]
C[Black plays.

Source:
    "Good and Bad Style"
    Go World #22, p. 43]
(;
B[mb]
C[Surely, extending here makes enough eye-space?];
W[ob];B[oa];W[oc];B[lb];W[kb]
C[Black cannot make the 2nd eye.]
)
    (;
    B[ob]
    C[Taking the "vital" point doesn't work either.];
    W[sb];B[mb];W[lb]
    C[The reader can verify that Black doesn't have enough space to live.]
    )
    (;
    B[oa]
    C[The only move!]
    (;
    W[mb];B[sb]
    )
        (;
        W[sb];B[mb]
        C[Black has an eye on the left and the right.]
        )
    )
)

