(;
AB[dr][pr][dq][fq][nq][pq][ep][fp][op][bo][co][jo][lo][no][bn][en][cm][dm][em][gm][im][fl]
AW[er][fr][eq][iq][lq][qq][cp][dp][pp][do][eo][po][cn][dn][fn][qn][qk]
C[White plays.
Source:  Tesuji Dictionary, Vol. 1, Tsuke #13,
Segoe Kensaku & Go Seigen, Ishi Press]
(;
W[gp]C[A clever sacrifice.];
B[gq];
W[gr];
B[hp];
W[hq];
B[go];
W[fo];
B[gp];
W[cq]C[The squeezing moves give White time to save
both the corner and bottom groups.]
)
    (;
    W[gq]C[Fails];
    B[gp]
    (;
    W[hq];
    B[fo]C[White loses the capture race.]
    )
        (;
        W[hp];
        B[go];
        W[cr];
        B[gr]C[White cannot avoid a huge loss.]
        )
    )
)
