(;
AB[pc][pe][rc][oh][oj][qj]
AW[re][qh][ql][ol][qo]
C[White plays.

Source:
   Attack and Defense
   Akira Ishida & James Davies, Ishi Press];
W[rj]
C[Correct.  The standard technique for defending in tight quarters is to make a contact play.]
(;
B[rk]
C[Black's best attack.]
(;
W[pi]
C[Good timing.];
B[pj]
C[Now Black has to connect here.];
W[ri];B[qk]
C[Black has to connect with bad shape, e.g., Black forms an empty triangle here.];
W[rl];B[sl];W[qf]
C[White lives while only paying a small territorial price for Black's hane on the lower right edge.]
)
    (;
    W[ri]
    C[Bad timing.  Defending here first is slack.];
    B[qk];W[pi];B[ok]
    C[Black connects with a strong shape.]
    )
)
    (;
    B[ri]
    C[Attacking here with a hane from the top is worse for Black.];
    W[qi]
    C[White now has a straightforward forcing sequence.];
    B[rk];W[pj];B[qk];W[pk];B[rl];W[oi]
    C[As a result, White still connects his stones, and Black has more weaknesses than in the main line.]
    )
)

