(;
AB[pl][pm][qn][qq][op][oo][np][mq][kq][pc][pd][qe][pf][of][qk][pb][cd][ec][fc][gd][hd][hc][he][id][jc][jb][ja][df][eg][fg][ch][dh][ci][cj][ck][dk][cl][bp][cp][dp][ep][fp][eq][dr][fn][go][ho][io][hp][iq][jq][ml][mj][kl][km][rk][rj][qi]
AW[qf][qg][pg][og][nf][nc][pk][ok][ql][qp][pp][pq][no][nr][mr][cr][cq][dq][er][es][fq][gq][gp][hq][ip][ir][fo][cn][dm][dl][ek][fl][dj][di][eh][fh][gh][gg][ff][ge][hf][fd][ie][je][jd][kc][kb][ob][qj][pj][lk][mk][ll][lm][il][kj][ib]
TR[lm]
C[Black's response to the marked play?

Source:
    American Go Journal, Vol. 30, No. 2, p. 15
    Commentary:  Feng Yun 9P]
(;
B[kn]
C[This game move responds to White's last move, but Black misses a straightforward chance to put the game out of reach.];
W[jk]
C[With one move White seals off the big center to make the game close.];
B[ne];W[oe];B[pe];W[me];B[pi];W[oi]
C[White goes on to win by 5.5 points.]
)
    (;
    B[jk]
    C[Running into the White's center here would have won easily.];
    W[kn]
    C[White has to cut off the invading stones, but ...];
    B[jn];W[jm];B[ln]
    C[... Black can calmly capture the cutting stone.]
    (;
    W[ko];B[ik]
    LB[mn:A][im:B]
    C[Black greatly reduces the center.  White can capture a stone with A, but Black can still connect to the center stones with B.]
    )
        (;
        W[jl];B[kk]
        C[Still much better for Black than the game.]
        )
    )
)

