(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[7.00]
GN[Takapotku round 5, June 17 2012]PW[Antti Törmänen]PB[Su Yang ("Jeff")]WR[6d]BR[6d]CP[Antti Törmänen]EV[Takapotku 2012]RO[5]AN[Antti Törmänen]US[Antti Törmänen]RE[W+10.00]
;B[dp]
;W[pq]
;B[pd]
;W[de]
;B[dc]
;W[fd]
;B[ce]LB[fc:A]C[In Japan I was taught that professionals prefer the joseki that starts with black A to the one that starts with this move. However, black needs the ladder to get a good result with A. For that reason, black should maybe play in the lower right corner first.]
;W[cf]
;B[cd]
;W[df]
;B[fb]
;W[cn]LB[fb:B][fd:A]C[The left side now becomes a strong white area. Especially, professionals dislike the exchange of white A for black B for black.]
;B[fp]
;W[en]LB[dk:A][qn:B]TR[fb][fd]C[It would look normal for white to play A instead, but then the exchange of the marked stones would turn out bad for white. For that reason, I went to expand the left side in the biggest way possible.

It may, however, be the case that a white tenuki such as B would have been a better choice.]
;B[po]
;W[go]LB[de:A]C[This move is part of the meta game I tend to have with Jeff, as we're really familiar with each others' styles. Jeff likes to play territory-orientedly, and since I don't mind building influence, usually territory vs. influence games come as a result. White A in the beginning also planned for that. 

Black's play so far has stated that black is not afraid of the white moyo, and for the same reason, white needs to expand the moyo as far as possible.]
;B[gp]
;W[ho]
;B[bp]LB[cq:B][iq:A]C[Black A would have been more normal, but then white could claim the corner with B, which would be surprisingly annoying for black.]
;W[pk]LB[hp:A]C[I couldn't make up my mind about what to play, so I took the largest open side while making a pincer movement against the black lower right corner soldier. Now that I look at the game afterwards, white A seems like it would have been the better choice.]
;B[iq]LB[jo:A][hp:B]TR[cn][en][go][ho]C[This move finishes the black lower left corner territory, and the marked white stones don't feel very strong anymore. Black A will also be annoying for white.

For the same reason, white B earlier would have been a big move.]
;W[qf]
;B[nd]
;W[ko]LB[jo:A][po:B]C[This move is to prevent black A, and to put some pressure on the black B stone.]
;B[cl]LB[bo:A]C[If black put this invasion off any further, white might get to play A first to solidify the left side.]
;W[dk]LB[el:A]TR[cn][en][go][ho][ko]C[White has to play here, as otherwise black will get to jump to A, which makes the marked white stones feel awkward.]
;B[ck]
;W[dj]
;B[dl]
;W[el]
;B[bn]
;W[qp]LB[np:B][iq:A][qq:C]C[So far, the game is still quite even, with possibly a slight black lead (thanks to black having gotten the good move of A). Since white has great centre influence, the game is still in no way easy for black.

Also note white r4 here: if white played the normal-looking white B instead, black would get easy eyes with C.]
;B[mn]LB[pm:B][mp:A]C[Black prepares to make shape with either A or B.]
;W[mp]
;B[oq]LB[pm:A]C[If it was me, I might have considered a light defending move such as black A instead of this. Black plans to make it a fighting game.]
;W[no]C[This is locally black's key shape point.]
;B[op]
;W[qo]
;B[pn]
;W[om]C[After the game, Jeff commented that he'd predicted that I'd play the corner out exactly like this.]
;B[mq]
;W[lp]
;B[pr]
;W[qr]
;B[qn]LB[pp:A]C[Black should play the atari of A in sente first.]
;W[or]
;B[nr]
;W[ps]LB[pp:A][qq:B]C[Black could have exchanged A for B earlier, which would have been good. Now black got a slight loss in this area.]
;B[kq]
;W[mf]LB[md:F][nf:A][of:D][ng:B][nh:E][rk:C]C[This move seemed to be one of the more controversial ones in the game. My reasoning during the game was simple: I don't want to play anything like white A or B, because white cannot make a lot of territory on the right side (thanks to the possibility of black C). The main white moyo is more towards the lower left corner, so I want to get more presence towards there. Thus, if black played D now, I'd probably respond with E, and treat the white r14 stone lightly.

Also, this move leaves a good potential follow-up at F later, in order to solidify white's centre further.]
;B[mg]C[While an odd-looking black move, this is actually also suji. This is also part of the meta game mentioned earlier: black is willing to stake the game on the centre fight, as he's confident that he cannot die there.

Now, the game will be decided on if white is able to get enough compensation for attacking the centre black group.]
;W[nf]
;B[lg]
;W[md]LB[ke:B][lf:A]C[Just playing a move like white A or B instead wouldn't have had enough power.]
;B[pf]C[Black states that he can get extra profit in the upper right corner, and still live in the centre. This is proper fighting spirit.]
;W[ng]C[White claims that he can fix his shape while giving black the corner profit, and still win the game.]
;B[pg]
;W[oh]LB[qc:B][qf:A]C[I was willing to sacrifice the stone of A, because white can still invade the upper right corner with B later.]
;B[jf]
;W[jd]LB[gb:B][jh:A]C[Jeff proposed I play around A instead of this move to compromise, letting black escape to k16 while white gets some 40 points of territory in the centre.

My opinion was that it's better for white to surround the black group and keep it weak as a whole, and later get the compensation.

This way, it's not impossible to see white playing B later to shut off the upper side, getting a good 15 points of territory there.]
;B[mi]TR[oh][pk][om]C[Black wants to run towards the right side, because white's shape is the weakest there.]
;W[jh]
;B[ji]LB[jh:A]C[This move is a sabaki technique. I saw it coming before I decided on white A.]
;W[kh]
;B[ki]
;W[lh]
;B[mh]
;W[li]
;B[lj]
;W[ih]
;B[ol]LB[pi:B][nj:A][jk:C]C[This is very likely black's losing move of the game. It seems necessary for black to fight by keeping his group intact with black A, white B, black C instead.]
;W[mj]C[Now white gets a good compensation for his attack, and black still cannot find a very good shape for his centre stones.]
;B[mk]
;W[nj]
;B[lk]
;W[pl]C[At this point of the game, I was feeling quite confident about the result.]
;B[kn]
;W[jn]
;B[ok]
;W[oj]
;B[nm]
;W[qi]LB[pj:A]C[This one is of course to fix the cut at A, but also to make the black corner group weaker.]
;B[ii]
;W[hi]LB[hh:A]C[This move almost lost the game for white — the black cut of A is incredibly annoying to deal with. White should solidly extend to A instead. Making these kinds of moves is probably my worst playing habit currently.]
;B[hh]
;W[hg]
;B[gh]
;W[ig]
;B[hj]
;W[gi]
;B[jk]LB[mc:B][gj:A]C[White's shape cries for a turn at A now, but I didn't feel confident about white's win if black gets to play B.]
;W[mc]LB[qc:A]C[After this, white A will be really severe on black. The only problem is that white's lower-left corner chain is now thin.]
;B[fh]C[White cannot capture these black stones.]
;W[gj]
;B[ei]
;W[hk]
;B[gf]
;W[he]C[White's shape here is really troublesome, but it just about holds for now.]
;B[ch]
;W[dd]LB[eb:B][ec:A]C[This move is another problem — white should extend A for B first. Now black is happy to play A, and white's shape becomes even worse.]
;B[ec]
;W[cc]
;B[bc]
;W[cb]
;B[bb]
;W[bf]LB[fe:A]C[It might be possible for black to create trouble for white with A now, but the variations are numerous and difficult to read through. That is probably black's last chance to turn the game, however.]
;B[bd]
;W[ff]
;B[cj]C[This way, white defends successfully in sente, and gets a decisive lead.]
;W[nn]
;B[pm]LB[km:C][mm:A][on:B]TR[pm][nn]C[The exchange of these two stones was to give white the sequence of white A, black B, white C, which ensures eyes for the white g5 group.]
;W[qc]
;B[qd]
;W[rd]
;B[re]
;W[rb]
;B[qg]
;W[oc]
;B[pc]
;W[pb]
;B[sd]
;W[rc]LB[gb:B][sc:A]C[White A would have made a ko for the black group, but I counted that white wins anyway, because white will get the initiative to enclose the upper side territory with B.]
;B[rh]
;W[od]LB[rf:A]C[This was one of the most rewarding moves to play in this game: a four-point double sente move that is white's privilege to play. White A next would kill the whole black group.]
;B[rf]
;W[on]
;B[lm]
;W[jm]C[This current sequence is to make sure that the white g5 groups definitely lives, with no questions. Black is still not alive himself, either.]
;B[gg]
;W[ge]LB[id:A]C[This was a significant mistake. White A is a better defence.]
;B[gc]LB[ie:C][hf:A][if:B]C[This move threatens black A, white B, black C, which kills the white j13 stones. Can you find white's best answer?]
;W[gb]LB[hb:D][ie:C][hf:A][if:B][kl:E]C[I though for maybe one minute before I realized this move fixes the A-B-C problem in white's shape. Black D now looks normal, but then black's C stone would get captured in a ladder. So, in response to black D, white would play E and kill black's centre group.]
;B[hc]LB[eb:B][fc:A][ie:E][hf:C][if:D]C[Now, white exchanges A for B, and the black C-D-E cutting sequence again doesn't work. Black should have simply connected with A instead of this move, after which white would play H17. Then black would save the centre group next, but white would still win on points.]
;W[fc]
;B[eb]
;W[kl]C[Now, a slightly complicated fighting sequence follows.]
;B[ij]
;W[gk]
;B[nk]
;W[ic]LB[ie:A][lo:D][mo:B][np:C]C[This was to prevent black A; because black has black B, white C, black D in reserve, the black group is not easy to kill. This move reduced white's risk.]
;B[ib]
;W[hd]
;B[jc]
;W[id]
;B[hb]
;W[kk]
;B[kj]
;W[ik]
;B[km]
;W[jl]
;B[mo]
;W[np]
;B[lo]
;W[nq]C[With this cut, white's lead is pretty much assured, but he still has to watch out for mistakes.]
;B[lq]
;W[pp]TR[pm][pn][qn][po]C[This is the most efficient way to attack the black marked stones.]
;B[ql]
;W[qk]
;B[rk]
;W[oo]LB[rm:A]C[White might have considered A instead of this move, but at this point I just wanted the safe win.]
;B[pj]
;W[qj]
;B[rn]
;W[rl]
;B[rm]
;W[qm]C[A ko results, but white has no risk and almost unlimited threats.]
;B[hf]
;W[if]
;B[ql]
;W[di]
;B[dh]
;W[qm]
;B[oi]
;W[pi]
;B[ql]
;W[co]
;B[bo]
;W[qm]
;B[ni]
;W[pj]
;B[ql]
;W[hp]
;B[hq]
;W[qm]
;B[je]
;W[ie]
;B[ql]
;W[ml]LB[mm:A]C[This move loses white two points — usually one would never want to play this way, but I counted that with the extra threats at A next, white safely wins the ko and the game.]
;B[ll]
;W[qm]
;B[kc]
;W[rj]
;B[kd]
;W[kf]C[Now, only the endgame follows. There are some slight mistakes ahead, but in the end, white's ten-point lead is unturnable.]
;B[ke]
;W[lf]
;B[em]
;W[dm]
;B[ek]
;W[fl]
;B[cm]
;W[dn]
;B[lb]
;W[ej]
;B[ci]
;W[fj]
;B[nb]
;W[mb]
;B[ma]
;W[nc]
;B[ns]
;W[ad]
;B[bg]
;W[ab]
;B[ba]
;W[be]
;B[ac]
;W[ag]
;B[ah]
;W[cg]
;B[bh]
;W[eg]
;B[eh]
;W[eo]
;B[ep]
;W[jp]
;B[fo]
;W[fn]
;B[kp]
;W[jo]
;B[jq]
;W[cp]
;B[cq]
;W[sc]
;B[se]
;W[ed]
;B[oe]
;W[ne]
;B[ip]
;W[io]
;B[lc]
;W[ob]
;B[na]
;W[oa]
;B[la]
;W[of]
;B[pe]
;W[jg]
;B[si]
;W[sj]
;B[ri]
;W[ph]
;B[le]
;W[jj]
;B[db]
;W[jk]
;B[ae]
;W[af]
;B[ad]C[White wins by ten points.])