(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]
PW[Chen Yaoye]PB[Zhou Ruiyang]DT[2013-11-13]EV[18th  LG Cup]C[Zhou Ruiyang and Chen Yaoye are both recent World Champion title holders.
However Chen has better internationally performance than Zhou, BUT
Zhou has had more wins against Chen and seems to win against Chen in many occasions such as
the Bailing Finals.
The winner of this match will face Tuo Jiaxi in the finals.]RE[B+4.50]BC[cn]WC[cn]
;B[qd]
;W[dc]
;B[pp]
;W[dp]
;B[ce]LB[oc:A]C[A is a popular response in this case, usually leading to a complicated middle game.]
(;W[qn]LB[nq:A]C[A unique way of approaching.
A is the likely response.]
;B[nq]
;W[rp]LB[ql:A]C[A is possible now.]
(;B[gc]LB[ql:B][qq:A]C[Black does not play A here right now because he would like to leave his options open,
Later on black might look into playing B instead and securing influence.]
;W[ed]
;B[jd]
(;W[qq]LB[cd:A][df:B][ql:C]C[Good move.
If white plays A or B right now, black would play C immediately. 
Now black will play in the top left corner.]
;B[bc]
;W[df]
;B[cf]
;W[dg]
;B[cg]
;W[dh]
;B[ci]
;W[ge]
;B[kq]C[Normal opening.
White will need to find a move in the top side. ]
;W[lc]LB[nc:B][ke:A]C[A is possible - but too passive.
B is the only move in this case - protecting the corner and seizing territory.]
(;B[nc]
;W[le]
(;B[jf]LB[lb:B][kc:A]C[Normally we like to exchange A and B first, but in this case it isn't good.]
;W[oc]LB[pc:A][od:B]C[White is playing very territorial here.
this is a local tesuji. Black can choose to defend his territory (A) or exchange for thickness (B)]
(;B[od]LB[nb:A]C[Best move in this scenario.
Now it is too small for white to play A only.]
(;W[pc]
;B[nd]
;W[pd]
;B[pe]
;W[nb]
;B[mb]
;W[ob]
;B[mc]
;W[lb]
;B[ma]
;W[qc]
;B[re]
;W[qf]
;B[qe]
;W[rc]LB[nf:A]C[Black would need to aim to try and punish white's group here.
A would be way too passive.]
(;B[lg]C[If white can successfully defend his group without losing too much blood. ]
;W[jc]
;B[ic]
;W[oe]LB[ne:B][of:A]C[White is looking to cause a complicated fight here.
A and B would both lead to bad results.]
(;B[og]LB[ne:A]C[Great move. A is ]
(;W[id]LB[hd:B][ie:A]C[Now if black plays A or B, then black will be captured.]
(;B[ne]LB[je:A]C[White doesn't have a great response here. A would lead to a ko but white doesn't seem to have valid ko threats.]
(;W[hc]
;B[ib]
;W[hd]
;B[kd]
;W[jb]LB[hb:A][ld:B]C[Black would lose the liberty fight if he played A.
Correct reading is vital here.]
(;B[ld]LB[ql:A]C[However it seems like black gained from this exchange because A is a perfect followup for black.]
;W[hb]
;B[ql]
;W[pl]
;B[pk]
;W[pm]
;B[qk]
;W[or]
;B[fq]
;W[er]C[It seems Chen is worried about being behind so he is playing of territory here.]
;B[cn]
;W[co]
;B[dn]
;W[fr]
;B[gq]
(;W[bn]C[This does seem very big, but I would not play here now.
A is very big and it is especially important in a game when you are behind to not let your opponent build more thickness.]
;B[bm]
;W[bo]
;B[nl]C[At this point black does hold quite a good lead. 
What we can learn the most from this game is how a professional player plays when he has a slight lead and able to keep it until the end. ]
;W[fo]
;B[gr]
;W[ho]
;B[ep]C[This might seem like an aggressive move at first,
but it is putting pressure on white while.
You can't just play passive in a lead.]
;W[eo]
;B[do]
;W[dq]
;B[dl]
;W[jq]
;B[jp]
;W[fp]LB[jq:A]C[At this point black would be satisfied by just capturing A.]
;B[iq]
;W[eq]
;B[oq]
;W[nr]
;B[mr]
;W[pq]
;B[ns]
;W[pr]
;B[dj]C[At this point we see black protecting most of his weaknesses and the board is getting smaller and smaller now for white.]
;W[lj]
;B[rn]
;W[on]
;B[nj]
;W[bb]
;B[cc]
;W[cb]
;B[db]
;W[eb]
;B[jj]C[Again, applying pressure.
Forcing sequences will make the board smaller and smaller and more difficult for the opponent to turn the game around.]
;W[rm]
;B[in]
;W[il]
;B[jl]
;W[jm]
;B[kl]
;W[jh]
;B[im]
;W[hh]C[White could have played A, but it would seem like a suicide.
When it is time to kill, pros would not hesitate a single moment if they know they have the advantage.]
;B[ki]
;W[mo]
;B[mm]
;W[rl]
;B[rk]
;W[io]
;B[jo]
;W[mq]
;B[mp]
;W[lq]
;B[lp]
;W[lr]
;B[kr]
;W[ms]
;B[no]C[Board is getting smaller.
At this point black has a 5 point lead and the game is basically over.
There are no more areas where you can argue. ]
;W[nn]
;B[qm]
;W[ro]
;B[mn]
;W[oo]
;B[np]
;W[ik]
;B[ij]
;W[hm]
;B[hn]
;W[gn]
;B[jn]
;W[gk]
;B[sl]
;W[sn]
;B[ig]
;W[ih]
;B[jk]
;W[ac]
;B[bd]
;W[cm]
;B[cl]
;W[am]
;B[bl]
;W[ol]
;B[ch]
;W[ok]
;B[oj]
;W[nk]
;B[mk]
;W[nm]
;B[ml]
;W[op]
;B[na]
;W[ra]
;B[de]
;W[ee]
;B[gm]
;W[fm]
;B[hl]
;W[en]
;B[dm]
;W[ie]
;B[fh]
;W[je]
;B[ke]
;W[kf]
;B[kg]
;W[jg]
;B[if]
;W[lf]
;B[mf]
;W[hf]
;B[me]
;W[hg]
;B[gi]
;W[fj]
;B[kf]
;W[hk]
;B[ei]
;W[ks]
;B[js]
;W[is]
;B[ls]
;W[pj]
;B[qi]
;W[ks]
;B[ir]
;W[jr]
;B[js]
;W[jr]
;B[ek]
;W[fl]
;B[hs]
;W[fg]
;B[dd]
;W[da]
;B[la]
;W[an]
;B[al]
;W[ia]
;B[fs]
;W[es]
;B[ad]
;W[ab]
;B[gh]
;W[gg]
;B[eh]
;W[sd]
;B[se]
;W[kh]
;B[lh]
;W[em]
;B[eg]
;W[ef]
;B[oa]
;W[pa]
;B[rd]
;W[sc]
;B[hp]
;W[ka]
;B[kc]
;W[kb]
;B[sk]
;W[sm]
;B[js]
;W[kp]
;B[ko]
;W[is]
;B[gs]
;W[ls]
;B[jq]
;W[os]
;B[js]
;W[gl]
;B[hm]
;W[ej]
;B[el]
;W[di]
;B[hj]
;W[gj]
;B[hi]
;W[go]
;B[ji]C[Overall this is a perfect game played by Zhou.
From the opening until the end black really made no mistakes and so even though white tried to reduce the lead, Zhou make no errors and kept his lead from the opening until the end. ])
(;W[nl]
;B[gr]
;W[ok]
;B[oj]
;W[nj]
;B[oi]
;W[bn]
;B[bm]
;W[bo]C[This will give white a better opportunity.]))
(;B[hb]
;W[ld]LB[fc:B][kf:A]C[A and B is miai for white.]))
(;W[je]
;B[ie]
(;W[ld])
(;W[kd]
;B[hd]
;W[if]
;B[jd]C[No ko threats for white.])))
(;B[ie]
;W[kd]
;B[hd]
;W[ne]
;B[me]
;W[mf]
;B[md]
;W[nf]
;B[lf]
;W[la]))
(;W[ne]
;B[me]
;W[mf]
;B[md]
;W[nf]
;B[ld]
;W[kd]
;B[ke]C[Does not work right now for white.]))
(;B[of]
;W[ne]
;B[me]
;W[nf]
;B[mf]
;W[ng]LB[ic:2][jc:1][kd:A]C[Bad for black.
There is horrible aji at A now.
Now we see why white placed the 1-2 exchange earlier. ])
(;B[ne]
;W[of]
;B[nf]
;W[og]C[White would gain from this exchange, so this is not possible either for black,]))
(;B[nf]
;W[lg]))
(;W[nb]
;B[pc]
;W[ob]
;B[nd]C[White can't be satisfied by this.]))
(;B[pc]
;W[od]
;B[ob]
;W[nb]
;B[mb]
;W[nd]
;B[na]
;W[mc]C[White would be very satisfied with this result however.]))
(;B[kc]
;W[lb]
;B[jf]LB[lb:2][ic:A][kc:1][pc:B]C[This would leave two good follow-ups for white at A and B. So the 1-2 exchange is not played in the game,]))
(;B[ke]
;W[oc]TR[dc][ed][ge][df][dg][dh]C[White is too confortable in this case, and black's stones are quite useless in the face of white's thickness. ]))
(;W[df]
;B[ql]
;W[qq]
;B[qo]
;W[ro]
;B[pn]
;W[pm]
;B[qm]
;W[rn]
;B[om]C[Black's top right corner influence is looking big
Black is vey satisfied with this result.]))
(;B[ql]
;W[qq]
;B[qo]
;W[ro]
;B[pn]
;W[pm]
;B[qm]
;W[rn]
;B[om]LB[jd:A]C[A is a great ladder breaker now for white.
Black usually plays this variation however when B and C is already exchanged.
In this case white is quite satisfied.]
;W[jd]
;B[pj]
;W[gq]C[Black's influence is hard to develop here.]))
(;W[oc]
;B[ld]
;W[qg]
;B[od]
;W[pc]
;B[pd]
;W[qj]
;B[qc]
;W[qm]
;B[nq]
;W[cd]
;B[de]
;W[fc]
;B[ci]C[Common opening.]))