(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]
PW[Tang Weixing]PB[Kim Jiseok]WR[3p]BR[9p]DT[2013-10-10]EV[18th Samsung Cup, quarter-final]C[This is the quarter finals of the 18th Samsung Cup played just recently on October 8th
The other match ups in the same tournament are 

Lee Sedol(B) vs. Qiu Jun(W) B+
Wu GuangYa(W) vs. An SungJun(B) W+
Shi Yue(W) vs. Park JungHwan(B) W+ ]RE[W+Resign]
;B[pd]
;W[dd]C[Kim Jiseok loves to fight and create complicated situations while Tang is a very territorial player.
Both players are young and this is expected to be an exciting matchup.
They respectively represent China and Korea in this tournament and both have been doing well recently.]
;B[qp]
;W[dq]
;B[co]LB[cj:A][ck:B][oq:C]C[This is a very popular opening.
White usually responds at A, B, or C.]
(;W[oq]LB[lp:B][mp:A]C[This is an aggresive style opening and can lead to fighting immediately.
I liked to play this opening during my training in Korea as well.
Most popular responses are pincers at A or B.]
(;B[lp]
(;W[on]LB[qm:A][pq:B]C[In the actual game white choose to escape lightly.
Now black can play A or B
A is an old joseki however.
B is the more aggressive joseki.]
;B[pq]
(;W[nr]LB[op:A]C[Very unique move.
Not seen very often.
Nowadays pros like to get together in study group and study possible new responses/moves and use their new "researched moves" in big tournaments. 
This move can be seen as a secret weapon prepared by Tang.
Normally white responds at A.]
;B[oo]LB[no:A][pr:B]C[Very aggressive.
It seems if white plays A the fight is good for black.
So direct fighting isn't so good, so B seems to be the ideal response.]
(;W[pr]LB[qr:A]C[We have an agreement made here.
White takes the corner while black gets the outside influence.
Keep in mind black can't block at A.]
(;B[op]
;W[qq]
;B[rq]LB[pp:A]C[Proper move.
No ko threats for white so early on, and of course black cannot play the bad shape at A.]
;W[pp]
;B[po]
;W[pq]
;B[qo]
;W[rr]
;B[pj]LB[ep:B][nr:A]C[It seems the result is good for black.
Move A seems to be in a strange position and later on move B is a very good move for black.]
;W[nc]
;B[pf]
;W[kc]
;B[ep]C[Ideal move for black.]
;W[eq]
;B[fp]
;W[fq]
;B[gp]
(;W[cj]LB[hq:A]C[This is deviating from normal joseki but is well justified here.
There is not much territory in the bottom, because white has a stone at A.
So the left side is much bigger than playing A]
;B[gq]
;W[bq]
(;B[je]LB[id:A]C[Great move.
Playing the 3-3 at A is normal but in this situation black should focus on expanding his influence.
White can't just make territory with A, that is too small.
White needs to fight or reduce black's influence.]
(;W[df]C[White decides to not respond.
Tang is saying "If you don't want to play the ideal 3-3 in the double wing formation now, you'll never get the chance"]
;B[ei]C[Again black is focusing on expanding influence.
]
;W[ch]C[White is very confident in his ability on reducing black's territory.
Tang is determined to take territorial lead then win by reducing black's influence]
(;B[ic]LB[ld:A]C[It seems black isn't so sure if he should simply expand his influence as well.
So he chose to grab the "cash" by reducing territory.
However, it seems A is a better move that corresponds with the global position.;]
;W[pb]
;B[ld]LB[kc:A]C[Now it's too late.
Stone A is too small.]
;W[ne]
;B[lc]
;W[qc]LB[kc:B][ne:A]C[White gained here.
Black did not gain enough in the capture of B in return for the amount of influence that white destroyed with move A.]
;B[qd]
(;W[nb]LB[ng:A]C[Sente and protects a possible cut.
If white played A...]
;B[ng]LB[kk:B][ql:A]C[Nonetheless the game is only starting.
Now white's priority is focusing on how to reduce black's moyo.
A seems too deep but B seems to shallow.
]
;W[mn]LB[on:A][mo:C][mp:B]C[White chooses to make use of the aji left with stone A and black's weakness at B.
If black doesnt fix at C...]
(;B[mo]
(;W[nk]LB[ln:A]C[very light move.
If white played A, black would be able to attack white pretty easily
Remember to play lightly when invading so make yourself a more difficult target of attack.]
;B[ln]LB[lm:A]C[A is the ideal followup for white.]
;W[lm]
;B[mm]
(;W[ml]LB[mn:A][nn:B]C[White is quite successful here.
Keep in mind white is sacrificing A to make better shape.
If white connects at B then it would end up as a horrible result.]
;B[nn]
;W[nm]
;B[lb]LB[pc:B][rc:A][om:C]C[Black doesn't have enough ko threats to start this ko.
So black decides to hold the ko and play big moves until he has ko threats.
Now it seems A and B become valid ko threats for black and black can start the ko with C the next move.]
;W[rd]C[White fixes his group and prevents possible ko threats.]
;B[re]
;W[rc]
;B[om]
;W[mn]
;B[cq]LB[no:A]C[Black thinks this ko threat is big enough.
If white plays A...]
(;W[cr]C[White agrees that white can't give up this group.]
;B[mm]
;W[oh]C[Very nice ko threat.
Now black is in a dilemma.
If black responds black has no more good go threats to continue the ko.]
;B[nl]
;W[qh]C[The fight here will determine the game.]
;B[ni]LB[og:A]C[Black is planning a big trade.
If white plays A.]
(;W[nh]
;B[mh]
;W[og]
;B[oi]
;W[mg]C[Nonetheless, white still chooses to capture black give black influence in the centre.]
;B[qi]
;W[ph]
;B[lh]
;W[pi]
;B[qj]
;W[nf]
;B[ek]C[The centre is still very big.
White needs to reduce black.]
;W[ii]C[Very confident.
In this position, I like white simply because capturing this stone seems to be a very very difficult task.
In Go, defending is usually easier than attacking, so many pros like to grab territory first.]
(;B[ki]LB[ig:A]C[very solid move.
But perhaps too slow.
A seems to be better.]
;W[fj]
;B[ej]
;W[gh]C[It seems white can live here with no problem.
The game is looking difficult for Kim.]
;B[gj]C[It seems Kim is confident, but white clearly has a big territorial lead.]
;W[ji]
;B[kj]
;W[ik]
;B[dg]
;W[cg]
;B[hj]C[Black realizes hes behind takes out the knife on white.]
;W[jk]
;B[ig]TR[ei][ej][gj][hj][ek]C[However, this group seems almost impossible to kill.
Black has weaknesses with his stones and white has alot of space to work with.]
;W[jg]
;B[if]
;W[oj]C[great use of aji.]
;B[nj]
;W[kf]
;B[lf]LB[lg:A]C[white can't play at A.]
(;W[ke]
;B[kg]
;W[jf]
;B[le]C[Black is all in.]
;W[ih]
;B[fg]
;W[gg]
;B[ef]C[White probably can't respond to this.]
;W[kd]
;B[gf]
;W[id]
;B[hc]
;W[lg]
;B[kh]
;W[jh]
;B[kb]LB[ie:A]C[It seems living isn't a problem.
A is a sente eye already for white.]
;W[hd]
;B[gd]
;W[gc]LB[gb:A]TR[je][if][ig]C[White is playing very aggressive here.
Black has alot of weaknesses here.
White wants black to play A so he can live by capturing black's 3 stones.]
(;B[ge]LB[jc:A]C[Good move.
White can also choose to go all in in a liberty fight with black by playing at A.]
(;W[ie]C[Seems like white wants to avoid more complications because he is doing well.]
;B[he]
;W[jd]
;B[fc]
;W[gb]
;B[jb]
;W[fb]
;B[ec]
;W[dc]
;B[eb]
;W[gi]LB[hg:A][fk:B]C[White lives.
A and B are miai.]
;B[de]
;W[cf]
;B[ll]C[Clearly if we do a territory count white is ahead.
It seems black lost at this point.
When pros gain a good lead at late game and there is no more complicated situations, the game is usually over.]
;W[rh]C[very big.]
;B[ce]
;W[ed]
;B[db]
;W[be]
;B[ee]
;W[bc]
;B[cd]
;W[cc]
;B[fd]
;W[cb]
;B[dp]
;W[cp]
;B[bp]
;W[cq]
;B[ck]
;W[bk]
;B[bj]
;W[bi]
;B[bl]
;W[aj]
;B[bd]
;W[ad]
;B[hl]C[Black is still trying to expand his territory.]
;W[hg]
;B[jm]
;W[cl]C[Centre territory is simply too hard to make for black.
There is too many openings.]
;B[bf]
;W[ae]
;B[lr]
;W[dm]
;B[dn]
;W[gr]
;B[hr]
;W[em]
;B[ri]
;W[si]
;B[sj]
;W[sh]
;B[mk]
;W[gm]
;B[hm]
;W[fr]
;B[bn]C[It seems black is behind by komi.
The rest of the game is not of importance to the result of the game.
Commentary ends here.
]
;W[dk]
;B[rp]
;W[mr]
;B[sr]
;W[rs]
;B[jr]
;W[gn]
;B[hf]
;W[hi]
;B[ca]
;W[ba]
;B[da]
;W[bg]
;B[hn]
;W[ls]
;B[ks]
;W[lq]
;B[ms]
;W[mq]
;B[kq]
;W[bm]
;B[en]
;W[fk]
;B[gl]
;W[fl]
;B[dh]
;W[fh]
;B[di]
;W[go]
;B[ho]
;W[kk]
;B[mf]
;W[ng]
;B[fo]
;W[fm]
;B[ma]
;W[jc]
;B[ha]
;W[mb]C[Black resigns.

Summary:
Black's opening was good but was not able to attack white very efficiently.
White continued to extend his territorial lead after living in black's centre and black was not able to recover from the big territorial difference.
])
(;W[jc]
;B[jb]
;W[gb]
;B[ib]
;W[ec]TR[ib][jb][kb][lb][hc][ic][lc][ld][le][lf]SQ[jc][kc][hd][id][kd][ke][jf][kf][gg][jg][gh][ih][jh][ii][ji][ik][jk]C[This would be a liberty fighting between the two groups.
No one knows who would win here.]))
(;B[gb]
;W[ge]
;B[fc]
;W[jc]
;B[jb]
;W[hf]C[Black can't accept this result.]))
(;W[lg]
;B[kh]
;W[jh]
;B[kg]C[white is cut.]))
(;B[ig]
;W[fj]
;B[ej]
;W[gh]
;B[hj]LB[ig:A][ki:B]C[Though white can try to settle, playing at A instead of B puts more pressure on white than the actual game.]))
(;W[og]
;B[of]
;W[nf]
;B[nh]
;W[rg]
;B[ri]
;W[se]C[though black probably would die here.
Black has huge potential in the centre.]
;B[ek]C[The centre is looking huge.]))
(;W[no]
;B[cr]
;W[np]
;B[pm]C[White didn't gain much territory but black suddently gained oover 30 points on what was white's corner.
Pro players love territory and would hate to sacrifice territory, especially for a territorial player like Tang]))
(;W[nn]
;B[ll]C[White would lose almost immediately like this.]))
(;W[ln]
;B[ll]
;W[jn]
;B[jl]C[White is difficult like this because white is too heavy.]))
(;B[kn]
;W[mp]
;B[mq]
;W[np]C[white can simply connect here.]))
(;W[ng]
;B[pc]C[Black has a good sequence here.]
;W[qb]
;B[nd]
;W[md]
;B[nb]C[White is cut.]))
(;B[ld]
;W[lc]
;B[nd]
;W[md]
;B[me]
;W[mc]
;B[ij]C[I would say this is an easier game for black.]))
(;W[id]
;B[ie]
;W[hd]
;B[cc]C[Black is very happy with this sequence]))
(;B[cc]
;W[dc]
;B[cd]
;W[ce]
;B[be]
;W[cf]
;B[bf]
;W[cg]
;B[db]
;W[eb]
;B[cb]
;W[fc]C[Though black took the corner,
giving white thickness is indirectly reducing black's territory.]))
(;W[hq]
;B[cf]
;W[fd]
;B[dj]C[Black's influence is too overwhelming in this case.]))
(;B[qr]
;W[pp]
;B[qq]
;W[po]C[Not possible for black.]))
(;W[no]
;B[np]
;W[op]
;B[po]C[Not a good fight for white.]))
(;W[op]
;B[qn]
;W[qm]
;B[pn]
;W[pm]
;B[om]
;W[nn]
;B[ol]
;W[rm]
;B[rn]
;W[qj]C[Joseki but results in very complicated fighting.]))
(;W[qm]
;B[op]
;W[pq]
;B[pp]
;W[qj]
;B[qq]
;W[qg]
;B[nc]C[Also very popular opening.]))
(;B[mp]C[This is complicated fighting.]))
(;W[ck]
(;B[gp]
;W[ep]
;B[jp]
;W[dn]
;B[cn]
;W[dm]
;B[bq]C[Possible variation.])
(;B[nq]
;W[ep]C[Possible variation]))
(;W[cj]
;B[gp]
;W[ep]
;B[cl]
;W[jp]
;B[lq]
;W[iq]
;B[em]
;W[en]
;B[dn]
;W[fn]
;B[fm]
;W[gn]C[Possible variation.]))
