(;
AB[pc][pd][nd][pi][qj][rj][ok][ol][pk][ql][rm][po][qo][jp][mp][fq][pq][qq]
AW[nc][dd][kd][pj][qk][rk][pl][pm][pn][rl][cn][nn][qn][rn][ro][rp][dp]
PL[W]
C[After White plays the marked ladder breaker, Black makes the marked attachment.  What should White do now?

Source:
    "Tesuji in an Actual Game" (originally from Weichi World)
    Duan Rong 7P
    American Go Journal, Vol. 36, No. 2, p. 37]
TR[kd][nd]
(;
W[oj]
C[The ladder is good for White, but running out is not good whole-board judgment.];
B[sk]
C[First, Black makes a forcing move on the right side.];
W[qm];B[ni]
C[Then Black makes this must-know tesuji against the escaping stones.];
W[nj];B[mj];W[nk];B[oi]
C[Now Black threatens a ladder on White's escaping stones.];
W[lo]
C[A strong ladder breaker, but ...];
B[mc]
C[... Black can tenuki for this big hane at the top.];
W[lp]
C[For example ...];
B[lq];W[mq];B[mr];W[nq];B[nr];W[kq];B[lr];W[qi];B[mk];W[nl];B[ml];W[nm];B[qh];W[ri];B[rh];W[sj]
C[White captures some stones, but the territory is to small compared to Black's big moyo.]
)
    (;
    W[md]
    C[In the game, White hanes here.];
    B[me];W[ne];B[nf];W[od];B[oe]
    C[Black still has a moyo, but not nearly as big as in the main line.  And White has sente.]
    )
)

