(;
AB[fr][jr][bq][cq][jq][nq][bp][gp][ip][co][ho][jo][cn][hn][gm][dl][el][fl]
AW[gr][eq][hq][iq][cp][dp][hp][pp][do][fo][go][pn][em]
C[Black plays.

Source:
    Tesuji Dictionary, Vol. 2, Ch. 1, #11

Analysis:
    Myron Souris]
(;
B[fq]
C[Splitting White in two is the move that works.]
(;
W[er]
C[At first glance, White appears to be able to capture the 3 stones.];
B[gs];W[hs];B[ir]
C[But after this move, White's shortage of liberties becomes painfully obvious.]
(;
W[hr];B[fs];W[fp];B[is]
C[Black captures the stones in a shortage of liberties.]
)
    (;
    W[fs]
    C[Connecting underneath does not help White.];
    B[hr]
    C[White still has the shortage of liberties problem.]
    )
)
    (;
    W[gq]
    C[If White tries to capture the Black stone, ...];
    B[er]
    C[... Black connects out.  White cannot make 2 eyes.]
    )
)
    (;
    B[er];W[fq]
    C[White protects the splitting attack and threatens to capture the 2 stones below.  White easily forms 2 eyes.]
    )
)

