(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2] RU[Japanese]SZ[19]KM[6.50]TM[60] PW[Magist]PB[Zhang Ziliang]WR[9p]BR[2p]RO[02]PC[Tygem]C[Zhang seems to be in the chinese city A league, but only 5 games on go4go Highlights: 10-32 Master's centre oriented opening to combat the "small" B moyo. !! 44-68 complications from B overplay that master handled very well !!! 108 nice move to seal centre ! 127-133 A cool B life in the corner, !! end W leading 12.5 +]RE[W+Resign]TC[3]TT[20] ;B[pd] ;W[pp]C[it is reassuring to see Master play adjacent 4-4 in response. My understanding is that: 1 Master, like pros, doesn't fear cross fuseki as W (verified by a Lian Xiao game) 2 It wants to aim to play a good direction of 3-4 in response to if B 3-4.] ;B[dc] ;W[cp]C[reassuring to see it play the same direction as humans for centuries with this 3-4 (good direction to restrict the growth of D17, e.g. stop mini chinese).] ;B[ce] ;W[eq]C[Master also plays small knight enclosure! edit: it does like to protect the 3-4 very quickly] ;B[qf] (;W[qn]C[confident that it isn't urgent to take out the B moyo] ;B[jc]C[so master says it isn't scared of this. why? ...] (;W[df]C[since the left is good expansion for both sides too] ;B[de] ;W[ff]C[this W group is a little weak, but in terms of direction, it is directly reducing the moyo, saying that B built it on the small side, rather than aiming to invade (K17 is low and so is D17 and C15) W still has good development on the bottom, and may develop on the left in the future, but it isn't so easy to make territory with a light group. F14 is primarily for reducing the top, and reducing the left if B tries to make territory there.] (;B[kq]C[natural to enter when there is so much space. It is hard to choose a point on the left] (;W[mq]C[this direction! leaving corner aji at Q3/R3/P2 Perhaps this follows "press from the weak side towards the strong" This allows W to comfortably take sente] ;B[hq]C[and B gets a "comfortable" 2 space as E3 is not at F3] ;W[pg]C[so this is the reasoning! Master thinks this works well with F14, and the potential W has building from the bottom right] (;B[pf]C[this time I was a bit surprised to see this as the top already seems smaller due to F14, and the P/Q 18 aji remains I guess this is still aiming to attack W with a Q10 invasion] ;W[ng] ;B[of]C[surely a little slow] ;W[ip]C[excellent shape to work with the centre oriented stones above] ;B[iq] ;W[kp] ;B[jp] ;W[jo] ;B[jq] (;W[ko]C[!! this leaves a cut in W's shape, but means that W doesn't have much shape aji] ;B[lq] ;W[mp] ;B[og]C[and B gets sente ] ;W[ni]C[still, locally this doesn't seem so great for B as B has 2 more moves though it remains very hard to make the centre territory, so I still find W's play a bit suspect] ;B[pj]C[shape, though it leaves a ko potential at Q11, maybe the aji is quite little actually I'd say this is more to reduce W than to profit for B] (;W[hn]C[it is very hard to play in the centre, so we have a lot to learn here - this is a very calm move] ;B[fr] ;W[fq] ;B[er] ;W[dr] ;B[gq] ;W[es] ;B[gs] ;W[ob]C[back to territory snatching] (;B[qb]C[good for territory , but there is a variety of different aji here I'm not even clear B should respond This move aims to attack W more than Q18, and also try to get more territory than Q17, but you can't get everything, now there is the P16 slight weakness] (;W[lc] (;B[ke]C[B is thinking to get into the centre by attacking W] ;W[le] (;B[kf]C[B does get into the centre like this] ;W[jb]C[standard combination, W is asking to make life while B fixes the weaknesses.] (;B[kb]C[!! Like this, L14 will look heavy now the next few moves are all forced until it settled] ;W[jd] ;B[lb] ;W[kd] (;B[mc] ;W[ic]C[! leaving a cut but shorting the B liberties] ;B[kc]C[B is thinking that J17 walks into this atari, but actually, B is in more trouble than W] ;W[ld] ;B[id]C[have to cut] ;W[mb] ;B[hc]C[?why here?] ;W[ib] ;B[nb] ;W[nc] ;B[ma] ;W[md] ;B[mb] ;W[hd] ;B[ie] ;W[gc] (;B[nd]C[My first reaction is that this is a disaster for B - the territory gain isn't so big and the centre stones are too weak when W has centre potential. W even broke the top left territory naturally But it still remains that it is hard to make centre territory, and B has a lot of territory already leela has dropped B's chances from 44 to 42 over the courses of this sequence.] ;W[lg] ;B[lf] ;W[mf] ;B[he] ;W[gd] ;B[jh] ;W[li] ;B[gh] ;W[eb]C[defends against F18 big reverse sente endgame] ;B[ec] ;W[fb] ;B[bg] ;W[jj] ;B[dh] ;W[ge] ;B[ij] ;W[ik] ;B[hj] ;W[ji] ;B[ih] (;W[oc]C[correct endgame edit: what the hell happened here?] (;B[oa]C[mistake by 2 points] ;W[pa] ;B[pb] ;W[na] (;B[qa]C[now B needs to spend 3 more moves instead of 1 to protect - R19 doesn't short the liberties] ;W[oh] ;B[qi] ;W[cm] ;B[qq] ;W[qp] ;B[pr] ;W[rq] ;B[hb]C[both timesuji and good endgame (get 1 extra ko threat)] ;W[ha] ;B[ja] ;W[gb] ;B[mh] ;W[lh] (;B[ok] ;W[nk]C[good technique] (;B[nl] ;W[ol] ;B[nj] ;W[mk] ;B[mj] ;W[lj] (;B[mi] ;W[mg]C[this connection is quite valuable, so W isn't unhappy to lose capturing N12] ;B[pl] ;W[om] ;B[pm] ;W[on]C[this exchange looks like a close result, but I think W gained] ;B[rp]C[? timesuji or trick play?] (;W[ro] ;B[io] ;W[in] ;B[rr] ;W[sp] ;B[mr] ;W[nr] ;B[or] ;W[lr] ;B[os] ;W[ms] ;B[sr] (;W[go] ;B[kr]C[life in the corner was about 20 points, since B had to protect again, but W also got G5, so surely C9 was a bit bigger - tenuki after O2 edit: I disagree - it is practically reverse sente so it must be the biggest. It only looks a little strange because G5 is a bit soft] ;W[cj] ;B[hk] ;W[il] ;B[dk] ;W[ck] ;B[dq] ;W[cq] ;B[dl] ;W[dj] ;B[ej] ;W[dm] ;B[em] ;W[en] ;B[fp] ;W[dp] ;B[fl] ;W[ei] (;B[fj] ;W[rl] ;B[rk] ;W[qk] ;B[rj] ;W[ql] ;B[db] ;W[pk] ;B[oj] ;W[nh] ;B[cl] ;W[bl] ;B[bi]C[huge] ;W[bj] (;B[fn] ;W[rh] ;B[qh] ;W[qj] ;B[pi] ;W[ri]C[W+R This combo was worth 10 points D18 was about 6 points reverse sente or 13 points F6 was worth about 8 points once again, an even rougher estimate, favourable to B has W+12.5] ;B[rg] ;W[sk] ;B[ep] ;W[do] ;B[eo] ;W[dn] ;B[dq] ;W[eq] ;B[sh] ;W[sj] ;B[di] ;W[pq] ;B[qr] ;W[ph] ;B[qg] ;W[ka] ;B[oa] ;W[ne] ;B[od] ;W[me] ;B[je] ;W[aj] ;B[hl] ;W[hm] ;B[gm] ;W[da] ;B[ca] ;W[ea] ;B[cb] ;W[fg] ;B[fh] ;W[dg] ;B[eh] ;W[ci] ;B[ch] ;W[ai] ;B[bh] ;W[cf] ;B[bf] ;W[hf] ;B[oq] ;W[op] ;B[nq] ;W[np] ;B[lp] ;W[lo] ;B[ah] ;W[bm] ;B[hp] ;W[oe] ;B[pe] ;W[ho] ;B[if] ;W[hg] ;B[hh] ;W[ig] ;B[kg] ;W[kh] ;B[jg] ;W[lk] ;B[ii] ;W[ee] ;B[ed] ;W[fd] ;B[gg] ;W[gf] ;B[eg] ;W[ef] ;B[la] ;W[ia] ;B[pc]) (;B[qj] ;W[qh] ;B[rh] ;W[fm] ;B[el] ;W[gp] ;B[fn] ;W[eo] ;B[gm] ;W[fo] ;B[di]) (;B[ph]C[fails] ;W[pi] (;B[qj] ;W[qh]) (;B[qh] ;W[qj]))) (;B[di]C[it looks bad shape, but precisely why not?] ;W[fm] ;B[el] ;W[fj] ;B[ek] (;W[cl]) (;W[fh] ;B[eh] ;W[fi] ;B[fg] ;W[gg] ;B[eg] ;W[hh] ;B[gi] ;W[hi] ;B[gj] ;W[ii]))) (;W[js]C[surely bigger])) (;W[rr] ;B[pn] ;W[po] ;B[ro] ;W[rn] ;B[qo] ;W[no])) (;B[mg] ;W[mi] ;B[nf] ;W[nh] ;B[mg] ;W[mh] ;B[je] ;W[me] ;B[ne] ;W[mg]C[B gets a lot anyway])) (;B[om]C[maybe this is still better] (;W[oj]C[I'm not sure how to respond to this though] ;B[qm] ;W[pi] ;B[qj]) (;W[nl] ;B[qm] ;W[rm] ;B[ql]))) (;B[nj]C[I'm not sure what W does here] (;W[pi]C[the ko aji doesn't seem strong]) (;W[nk]C[here?]) (;W[mj] ;B[nk]C[B is further into the centre]))) (;B[od] ;W[ka]C[ko])) (;B[ka]C[W gains/loses nothing compared to L19 directly, still have many ko threats though hmm I say nothing, but doing the math seems to say W gains 1/6 point over L19 (as L19 could still be captured)] ;W[qc]C[there is no aji] ;B[pc] ;W[pb] ;B[qd] ;W[ja] ;B[hb]) (;B[od]C[the same thing] ;W[ka]C[without the exchange this L19 wouldn't be connected, but with B's shortage of libs, it is])) (;W[ka] ;B[oc]C[B has one less point, but later B can capture L19, and this loses W a little overall.])) (;B[lg] ;W[od])) (;B[ic]C[proper? I don't know where W was planning] (;W[kc]C[?] (;B[mc] ;W[mb] ;B[nb] ;W[nc] ;B[ma] ;W[md] ;B[mb] ;W[id] ;B[hc] ;W[hd] ;B[gc]) (;B[ib])) (;W[mf]) (;W[id]) (;W[nc]))) (;B[ib] (;W[kb] ;B[ic] ;W[pb] ;B[pc] (;W[nd]C[this sort of thing] ;B[dj]) (;W[dj]C[is the top safe? it seems so?] ;B[mb] ;W[nc] ;B[ne] ;W[mc] ;B[me] ;W[pa] ;B[na] ;W[la] ;B[ja] ;W[nb] ;B[ma] ;W[kc]C[seki])) (;W[ic]C[ah, B was scared of this. In that case it was probably L15 that was wrong] (;B[id] ;W[hc] ;B[kb] ;W[jd] ;B[kc] ;W[kd]) (;B[kc]C[though this might be a good move] ;W[hb] ;B[kb] ;W[ia] (;B[me]) (;B[mf] ;W[lf] ;B[lg] ;W[me] ;B[nf] ;W[kg]))))) (;B[lf] ;W[me] ;B[kf] ;W[mf]C[B's shape is weird, just helping W connect])) (;B[je]C[this was my first instinct])) (;W[pb] ;B[qc]) (;W[od])) (;B[dj]C[but I don't know where to play instead, how to reduce the centre?] ;W[qc]C[I feel that B is so solid, the corner is no longer so big]) (;B[pb] ;W[oc] ;B[pc] ;W[lc])) (;W[ss] (;B[ho]C[this is a shape to get out]) (;B[hn]C[this is a shape to reduce])) (;W[pi] ;B[qi] ;W[qh] (;B[oi] ;W[oh]C[very heavy on both]) (;B[qj]C[this seems to work though] (;W[rh] ;B[oh]) (;W[ri]C[there is still aji though])))) (;W[lp]C[I've only even seen this] (;B[jn]C[I guess there is still this stuff]) (;B[io]C[B cuts immediately and W gets to fix] ;W[jn] ;B[ho]C[W has a better advantage on the right and the lower corner than the game, but the loss in the centre affects fighting on the left My first thought was that this is better for W than the game so master was scared of something else, but now I'm not so sure.]))) (;B[qg] ;W[pi] ;B[ph] ;W[oh] ;B[qh] ;W[nj])) (;W[iq]C[surely we expect this direction] ;B[nq] ;W[oq] ;B[np] ;W[dj]C[aim to expand on the left somewhere. I'm not sure what master dislikes here logically it seems to be about it being harder to make territory on the left for both sides, and that there is a big point on the right] ;B[pm])) (;B[dg] ;W[eg] ;B[cf] ;W[dh] ;B[ef] ;W[fh])) (;W[dj]C[standard but the shape feels a little odd, it is understandable why Master didn't like this. The territory seems inefficient from C4 to D10, and leaves the good C12 point.] ;B[kq]C[if B gets this the two sides conflict for W's moyo])) (;W[jc]))