(;
AB[fl][fk][dn][dm][em][bm][bn][cp][bp][eo][fo][go][ho][io]
AW[bq][cq][dp][ep][fq][hq][do][en][fn][fm][gl][hn][el][dl][cl][bl]
C[Black plays.]
(;
B[hl]
C[A stylish clamp, but fails.];
W[hm]
C[Because Black's left side group cannot make 2 eyes, White's center group only needs to run out to gain a few liberties.]
(;
B[gk];W[im]
)
    (;
    B[im];W[hk]
    )
)
    (;
    B[il]
    C[Correct way to net the center group.]
    (;
    W[gn]
    (;
    B[hm]
    C[Cleanest capture, because Black keeps White down to two liberties.];
    W[hl]
    C[If White tries to escape, ...];
    B[in]
    C[... Black can now keep White down to one liberty.];
    W[gm];B[hk];W[im];B[gk]
    )
        (;
        B[gk]
        C[Also works, but this move leaves White with an extra liberty liberty, e.g., for ko threats.]
        )
    )
        (;
        W[gk]
        C[White doesn't have time to threaten the 2 stones to the left.];
        B[gm];W[gn];B[hm];W[in];B[jn]
        C[Black saves the left side group.]
        )
        (;
        W[hl];B[gn];W[gm];B[hk]
        )
    )
)

