(;
AB[qd][qe][od][oc][ob][na][la][ka][jb][jc][jd][je][jf][jg][mc][lc][ld][le][ne][mf][nf][of][og][ng][mg][lg][nh][rg][qh][pi][ok][mk][mj][ki]
AW[nb][mb][lb][kb][kc][kd][ke][kf][kg][jh][ig][lh][mh][ni][oh][pg][pf][oe][nd][md]
C[Black plays.

Source:
    Igo Hatsuyo-ron #68a:  300 year old problem set for
    student professionals.
Analysis:
    Myron Souris];
B[kh]
C[Otherwise, White plays here to escape.]
(;
W[lf]
C[Forced.];
B[nc]
C[Forced];
W[me];B[mf]
(;
W[ne];B[ng]
(;
W[nf];B[mg]
(;
W[lg];B[pe]
C[White has only 1 eye.]
)
    (;
    W[og];B[pe]
    )
)
    (;
    W[mg];B[nf]
    C[And no matter where White plays, Black can create a dead shape.]
    (;
    W[oi];B[oj]
    C[White has only 1 eye.]
    )
        (;
        W[ph];B[qi]
        C[Good enough.]
        )
    )
)
    (;
    W[mg];B[nf]
    (;
    W[ng];B[of]
    C[And White can only make one eye in the center.]
    )
        (;
        W[ne];B[ng]
        C[Transposes.  White has only 1 eye.]
        )
    )
    (;
    W[ng];B[ne]
    (;
    W[nf];B[mg]
    C[White only has 1 eye.]
    )
        (;
        W[mi];B[oi];W[mg];B[nf]
        C[White only has 1 eye.]
        )
    )
)
    (;
    W[nc]
    C[Fails.];
    B[ma]
    C[And White dies immediately due to a shortage of liberties.]
    )
)

