(;
AB[ra][mb][qb][sb][mc][rc][kd][md][qd][ke][me][qe][re][pf][og]
AW[ob][jc][kc][nc][qc][id][rd][ne][oe][pe][if][lf][mf][jg][ng]
C[Black plays.

Source:
    Qi Jing Zhong Miao #444, an ancient collection of mostly kyu level life and death problems.

Analysis:
    Myron Souris

This is the kind of wonderful problem that looks impossible at first glance, and then looks more impossible (is that possible?) the longer you look.]
(;
B[oc]
C[The only move!]
(;
W[pc]
(;
B[od]
C[Again, the only move!]
(;
W[nd];B[nb];W[pd];B[oa];W[pa];B[pb];W[na];B[oc]
C[Again the only move!]
(;
W[oa];B[ma];W[od];B[qa];W[oc];B[nf]
C[And the snapback is a cool finish.]
)
    (;
    W[od];B[qa]
    )
    (;
    W[nf];B[qa];W[od];B[ma]
    )
)
    (;
    W[pd]
    C[Transposes to the main line.];
    B[pb];W[nd];B[oa];W[na];B[nb];W[pa];B[oc]
    )
)
    (;
    B[oa]
    C[Fails];
    W[nb]
    (;
    B[na];W[pa];B[ma];W[pb]
    )
        (;
        B[pb];W[na];B[nd];W[od]
        )
    )
)
    (;
    W[nd];B[nb];W[pc];B[oa]
    C[And Black connects underneath.]
    )
)
    (;
    B[oa]
    C[Fails];
    W[nb]
    (;
    B[na];W[pa]
    (;
    B[ma];W[pb];B[nd];W[od];B[oc];W[pc];B[nf];W[of]
    )
        (;
        B[nd];W[od];B[oc];W[pc];B[ma];W[pb]
        )
    )
        (;
        B[nd];W[od];B[pb];W[na];B[oc];W[pc];B[nf];W[of];B[pd];W[nf]
        )
    )
)

