(;GM[1]FF[4]SZ[19]AP[SmartGo:2.8.3.0]
PW[QIAO Zhijian (China)]WR[7d]
PB[CHAN Kouk Wang (Macau)]BR[5d]
EV[2012 WAGC]RO[3]
DT[20120514 [12:13]
KM[6.5]
RE[°×ÆåÖÐÅÌÊ¤!]
US[Chris Garlock]
AN[Yang Shuang 3P];B[pd];W[dd];B[pp];W[dq];B[do];W[co];B[cn];W[cp];B[dn]
;W[fq];B[cj];W[qn];B[pk];W[nq];B[pn];W[pm];B[on];W[qp]
(;B[qq]
C[b can consider the wedge at A instead (see var)]LB[qo:A];W[qo];B[pq];W[om]
;B[mp]
C[must protect the cut];W[mq];B[lp];W[lq];B[kp];W[jq]
C[b has a cut at A but it's hard to find a good way to protect]LB[po:A]
(;B[qg]
C[threatening the w group at A is a more aggressive move]LB[rl:A];W[np];B[po]
;W[qk];B[nm];W[nl];B[mm];W[pj];B[ml];W[ok]
C[w's grp is safe and b's right-hand area is destroyed];B[fc];W[cf];B[jd]
;W[no];B[nn];W[jp];B[oc];W[jn];B[nj];W[ph]
C[w got an advantage in the lower right and now is playing very solidly]
;B[jl];W[nh]
C[B shd play at A and scoop out w's corner]LB[cc:A]
(;B[pg];W[og];B[qh];W[of];B[qi];W[pi];B[cc]
C[good, but the exchange on the right is not good for B; left aji around A]
LB[qe:A];W[dc]TR[of]
C[also, the marked w stone influences the top area];B[db];W[eb];B[cb];W[ec]
;B[cd];W[ce];B[fb];W[ea];B[bd];W[fd];B[gd];W[fe];B[ld];W[qe]
C[now w activates the aji on the right];B[pe];W[qd];B[qc];W[rc];B[qb];W[rg]
;B[pf];W[rf];B[rb];W[se]
C[now w scooped out b's corner and b is short of territory; white has about 55 and black has about 50 so b needs about 10 points more to win. w's grps are all thick or settled so that makes it even more difficult.

a play at A is possible; has follow-up below and can make moyo above.

But really it's quite difficult to catch up. ]
LB[go:A]
(;B[ge];W[gf];B[hf];W[gg];B[ch];W[gc];B[hc];W[gb];B[hb];W[fa];B[go];W[ln]
;B[hm];W[di];B[dj];W[ci];B[bi];W[dh];B[ei];W[bh];B[eh];W[dg];B[gi];W[bj]
;B[bk];W[ai];B[hg];W[lh];B[gq];W[fp];B[gp];W[nd];B[nc];W[ha];B[ib];W[ke]
;B[le];W[kg];B[gr];W[er];B[rk];W[rl];B[rj];W[rh];B[sc];W[qj];B[ri];W[rd]
;B[km];W[kn];B[ir];W[jr];B[kf];W[jf];B[lf];W[hh];B[gh];W[ih];B[ie];W[ik]
;B[ki];W[kj];B[li];W[mi];B[lj];W[jh];B[hj];W[ij];B[or];W[fm];B[fo];W[hk]
;B[gk];W[gl];B[hl];W[fk];B[gj];W[ej])
(;B[go]))
(;B[cc];W[dc];B[cd];W[ce];B[db];W[eb];B[cb];W[ec];B[fb];W[ea];B[fd];W[ee]
;B[bd]))
(;B[rl]
C[reduce w's eyeshape]))
(;B[qo];W[ro];B[po];W[rm];B[qq];W[rp];B[om]
C[b becomes thick this way]))

