(;
AB[bp][cp][dp][dq][dr][er][co][dn][dm]
AW[bo][cn][cm][dl][do][eo][ep][eq][fr][gq]
C[Black plays.

Source:  "Tesuji", Ch. 2, pp. 18-19,
         James Davies, Ishi Press]
(;
B[fn]
C[Natural, but wrong.];
W[fm]
C[This slap tesuji captures the Black stones.]
(;
B[en]
C[Black's best chance.];
W[gn]
C[But White captures Black in a loose ladder.];
B[fo];
W[go];
B[gp];
W[hp]
)
    (;
    B[el]
    C[Another possible Black escape strategy.];
    W[em]
    C[But White catches Black in an ordinary ladder.];
    B[en];
    W[gn]
    )
)
    (;
    B[em]
    C[Ugly, but correct.

Black forms a normally bad empty triangle shape,
but Black's stones survive to split White's
groups with the potential for attack later.]
    )
)
