(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[7.50]
PW[Lluis Oh]PB[Shaoyou Ouyang]WR[6d]BR[7d]DT[2007-12-31]EV[London Open]RE[B+2.50]
;B[pc]C[This is the game from the London Open tournament -2007. Black is Shaoyou Ouyang, 7-dan. White is Lluis Oh, 6-dan]
;W[dp]
;B[qp]
;W[dc]
;B[nq]
;W[pe]
;B[qe]
;W[qf]
;B[qd]
;W[pg]
;B[nc]
;W[qk]
;B[qm]
;W[ok]C[The opening is classic]
;B[cn]
;W[cl]
(;B[cf]LB[ci:A]C[I would prefer to play at A and avoid the pincer -]
(;W[ci]C[The pincer is perfect -]
(;B[fq]LB[cc:A]C[The wrong direction of play. It's more important to attach at A -]
(;W[dn]LB[fp:A]C[White may also attach at A -]
(;B[cq]C[Black has a choice -]
;W[dq]C[White may also block from the other side]
;B[cp]
;W[co]
;B[bo]
;W[do]
;B[bn]
;W[dr]
;B[cm]C[A good plan. It helps Black to take sente]
;W[dl]
;B[iq]
;W[br]
;B[dm]
;W[em]
;B[bl]
;W[bk]
;B[am]C[The both sides can be satisfied]
;W[cd]
(;B[ff]C[It's easier for Black to sacrifice this stone -]
;W[gc]C[Now Black's group is heavy]
;B[el]LB[hf:A]C[A brave move, but it looks risky. Normally Black has to run away at A]
;W[ek]
;B[fl]
;W[fk]
;B[fo]LB[gl:A]C[It's better to extend at A directly]
;W[fn]
;B[gl]
;W[gk]
;B[hl]
;W[gp]
;B[fp]
;W[gn]C[Now White's shape is very good. He is leading]
;B[hk]TR[cf][ff]C[A bad move, which makes the marked stones weaker]
;W[gi]
;B[io]
;W[in]
;B[ei]
;W[dj]
;B[jn]
;W[im]
;B[hj]
;W[fi]
;B[kj]
;W[hf]C[Now Black is in trouble. His position is very thin!]
;B[ho]C[The vital point]
;W[cr]
;B[bp]
;W[ak]
;B[al]
;W[fr]
;B[gr]
;W[fs]
;B[bd]C[Black cannot win the game without saving these stones]
;W[bc]
;B[ch]
;W[bh]
;B[ce]
;W[de]
;B[he]
;W[ge]LB[if:A]C[A greedy answer. I would prefer to extend at A and start the double attack (Black's group on the left and the central one)]
;B[gf]
;W[ie]
;B[ed]
;W[dd]
;B[hd]
;W[gd]
;B[hg]
;W[if]
;B[ig]
;W[jg]
;B[hi]C[The result is successful for Black, but he is still behind]
;W[pn]
;B[pm]
(;W[pq]C[The wrong plan and the losing move -]
;B[qq]
;W[om]
;B[on]
;W[nn]
;B[oo]
;W[nm]
;B[rk]
;W[rl]
;B[ql]
;W[qj]
;B[rm]
;W[no]
;B[np]C[Black got a huge corner here and White's wall is almost useless]
;W[mp]
;B[mq]
;W[lp]
;B[lq]
;W[eg]
;B[fg]
;W[fh]
;B[jc]
;W[id]
;B[rj]C[Now Black is slightly ahead. He played yose well and was able to keep his lead.
This is the last note.]
;W[ri]
;B[qh]
;W[rh]
;B[ln]
;W[lc]
;B[fe]
;W[fb]
;B[ec]
;W[eb]
;B[of]
;W[pf]
;B[kd]
;W[ld]
;B[ke]
;W[le]
;B[kf]
;W[od]
;B[oi]
;W[ph]
;B[oc]
;W[mg]
;B[nk]
;W[ol]
;B[oj]
;W[pj]
;B[kg]
;W[lo]
;B[kp]
;W[gq]
;B[go]
;W[hr]
;B[nf]
;W[nd]
;B[oh]
;W[rf]
;B[mf]
;W[sc]
;B[rc]
;W[ks]
;B[is]
;W[ir]
;B[jr]
;W[js]
;B[ml]
;W[hn]
;B[kr]
;W[ls]
;B[ms]
;W[hs]
;B[lr]
;W[jf]
;B[jh]
;W[sj]
;B[sl]
;W[ko]
;B[jo]
;W[jl]
;B[re]
;W[se]
;B[si]
;W[kc]
;B[jd]
;W[qg]
;B[sd]
;W[rd]
;B[sb]
;W[jk]
;B[jm]
;W[il]
;B[jj]
;W[lk]
;B[kk]
;W[ll]
;B[kl]
;W[mm]
;B[lm]
;W[mk]
;B[nj]
;W[nl]
;B[jb]
;W[hb]
;B[ic]
;W[hc]
;B[mc]
;W[md]
;B[lb]
;W[kb]
;B[ka]
;W[gh]
;B[gg]
;W[og]
;B[ng]
;W[lf]
;B[lg]
;W[is]
;B[hq]
;W[gs]
;B[eq]
;W[er]
;B[aq]
;W[ar]
;B[ef]
;W[df]
;B[mj]
;W[mo]
;B[lj]
;W[ml]
;B[pi]
;W[qi]
;B[sk]
;W[sf]
;B[gj]
;W[fj]
;B[sd]
;W[bq]
;B[ap]
;W[hh]
;B[ih]
;W[ik]
;B[ij]
;W[kn]
;B[km]
;W[ia]
;B[ib]
;W[hp]
;B[ip]
;W[gr]
;B[sh]
;W[sg]
;B[sj]
;W[ha]
;B[ja]
;W[pk]
;B[mh]
;W[en])
(;W[oq]
(;B[op]
;W[pq]
;B[pp]
;W[nr]C[It was possible to live inside])
(;B[pq]
;W[op]
;B[or]
;W[nr]
;B[mr]
;W[np]
;B[ns]
;W[mq]
;B[nr]
;W[om]C[The difference with the real game would be huge])
(;B[np]
;W[qq]C[I cannot see the way of killing this group])))
(;B[ed]
;W[de]
;B[ec]
;W[db]
;B[ff]
;W[df]
;B[id]C[I would prefer to give up the left side]))
(;B[dm]
;W[cm]
;B[cq]
;W[co]
;B[dq]C[I would prefer to choose this joseki and make White overconcentrated on the left]))
(;W[fp]
;B[gp]
;W[fo]
;B[dq]
;W[cq]
;B[eq]
;W[cp]
;B[hq]
;W[fm]C[It's hard to say, which plan is better]))
(;B[cc]
;W[cd]
;B[dd]
;W[bc]
;B[cb]
;W[de]
;B[ed]
;W[ce]
;B[bb]
;W[fq]
;B[ch]
;W[di]
;B[eg]C[This is the best way for Black]))
(;W[cd]
;B[en]
;W[fq]
;B[dk]
;W[dl]
;B[el]
;W[ck]
;B[dj]
;W[cj]
;B[di]
;W[ch]
;B[dh]C[It would be passive for White to defend like this]))
(;B[ci]
(;W[dn]
;B[ce]
;W[ed]
;B[do]
;W[eo]
;B[co]
;W[dm]
;B[cp]
;W[dq]
;B[cq]
;W[dr]
;B[cr]C[The opening would be comfortable for Black])
(;W[cf]
;B[en]
;W[fq]
;B[bp]
;W[cq]
;B[dk]C[This result is comfortable for Black too])))
