(;
AB[ql][pn][po][qn][op][oq][or][qr]
AW[qo][qp][pp][pr][rr]
C[Black plays.

Source:
Go World #28, p. 49, Summer 1982
"Life and Death From Actual Play"
Nakaoka Jiro 7P]
(;
B[pq]
C[Simply pushing in show a lack of imagination.];
W[qq];B[ps];W[rn];B[rm];W[sn]
C[Even though Black has already misplayed, can you spot how Black should continue?];
B[sr]
C[Correct, but ...];
W[rs];B[rq];W[rp];B[sp]
C[... Black only has a ko.  Black can do better.]
)
    (;
    B[qq]
    C[A strong move to ruin White's eye shape.]
    (;
    W[rq]
    (;
    B[pq]
    C[But this connection is a mistake.];
    W[ro]
    C[The reader can verify that White lives.]
    )
        (;
        B[rs]
        C[Correct.];
        W[pq];B[ps]
        C[Black can link up with this tesuji.];
        W[qs];B[qr]
        C[The reader can verify that White cannot live.]
        )
    )
        (;
        W[pq];B[ps]
        C[This sequence will transpose to the previous variation.  White dies.]
        )
    )
)

