(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2] RU[Japanese]SZ[19]KM[6.50]TM[60] PW[Magist]PB[Fan Tingyu?]WR[9p]BR[9p]RO[01]PC[Tygem]C[Highlights: ! measures interest 16, 18 - Master's probes to deal with 3-4 joseki & chinese opening. Strong local analysis. !!! 26-41How to keep your wall solid when B can live inside. Master's play seems optimal and simplifying, though it takes some time to understand. !!! 44,46 How to play good shape in the centre by staying connected by not playing too close to your opponent ! 62-72 Master's crude and direct way to press black low and build a wall. (another of the attach on top of 3rd line stone principle)!! 89-113 Fan's invasion and Master's calm shape to force B to live small are both instructive. ! at 128, W leading 6.5+]RE[W+Resign]TC[3]TT[20] ;B[qd] ;W[pp] ;B[dc] ;W[dp] ;B[cn] ;W[fq] ;B[ch]C[B moyo, very interesting to see how Master deals with this] ;W[od] (;B[oc] ;W[nc] ;B[pc] (;W[nd] (;B[qf] ;W[jc] ;B[hc]C[normal at this point, since it is the micro chinese shape, it is awkward to invade at D15, and W often plays high K16 to invade F17. It is still urgent to do something. Some may invade C8/D9 too.] (;W[pd]C[!!! this early is normally criticised asking B whether he still wants to invade M17 or not - can W get O18 in sente? edit: still an application of the attach on top of 3rd line stone principle of master :P] (;B[qc]C[the exchange means W O18 isn't sente, but leaves weaknesses in B's shape - Q14, R13, S15 and the monkey jump after W O18 remains But W lost the Q15 sente aji] (;W[dd]C[alphago move leela: for B next: E16 46.70 E17 46.24 C16 45.51 C17 45.13] (;B[cd]C[I feel that this is what most pros would play, for territory, but I have my doubts about its optimality especially in these surroundings. I am tempted by E16] ;W[ec] (;B[de] ;W[ed] (;B[cc] ;W[ee] (;B[df] (;W[id]C[H17 looks misplaced in this variation, and better at G17 to threaten E15] (;B[ge]C[too early?] ;W[gd] ;B[hd] ;W[he] (;B[ie]C[despite forcing W into overconcentrated shape, is this a good exchange? As J15 ends up misplaced. And I'm doubtful this is really necessary] ;W[hf] ;B[jb] (;W[ic]C[so that's why this slightly weird move is correct] (;B[gc] (;W[gf]C[force B into making this bad exchange] ;B[ib] ;W[kc] ;B[kb] ;W[lc] ;B[fb]C[now W is a lot more solid, especially after E18, though B doesn't seem too unhappy to wipe out the territory J15 isn't in a good place leela already says 58.81 for W, though it does have a bias towards the outside. (it quickly climbs down to 53.7 in the next few moves, and then up to 58.5 after D18) ] ;W[qn]C[W is so happy to get this sente. The B moyo has disappeared into a W moyo And the C6 F3 exchange doesn't look good for B] (;B[jf]C[This is the modern territory style - taking the territory also means taking the eyespace, so that means your influence may be a weak group, it is true that W is a little weak on both sides but master is too good. This may also be motivated by the C6 F3 exchange But in hindsight feels like a slight overplay] (;W[ng]C[the solid move, aiming at solid follow ups - Q13, Q12, R12] ;B[jh] ;W[gi] ;B[jj] ;W[eb] (;B[db]C[huh??? I don't understand this move] ;W[fc] ;B[gb]C[K14 seems more clearly to be not very powerful as W has excellent living shape] (;W[di]C[W is now mostly alive] (;B[ni]C[vital, though B's shape is a little thin - if W is solid on both sides, B is a weak group] ;W[pg]C[necessary] ;B[pf]C[breaking the eyespace] ;W[of] ;B[oh] ;W[og] (;B[bp]C[slow? leelabot slightly prefers R11 and even more prefers L3] ;W[kp]C[the last critical point, as this concerns the weak black group above, with a lot of potential after K8 even so humans would be very nervous to play this as the territory is unclear] (;B[cq]C[normally B's territory strategy would be aiming at W's weaknesses since W also loses eyespace (so it is harder to kill the follow up invasion at J3, etc), and the huge endgame at E2 remains] ;W[co]C[!!! crude, but] ;B[bo] ;W[dn]C[there is no weakness around J3 anymore] ;B[cm] ;W[dm] (;B[dl]C[should tenuki I think, but presumably the game is already over in master's eyes] ;W[el] ;B[dk] ;W[ek] (;B[ci]C[B would like to tenuki but leela prefers tenuki K8 by 3%] ;W[jl]C[too critical a point - B seems in trouble this game, the potential is too big if W uses weakish groups to make territory, it is a 4 space extension from F3 to L4 Yet the value of C3 for endgame cannot be denied - E2 is still very big. But W E10 is still semi sente and W is very solid - B is a weak group.] (;B[lh]C[aiming to attack W at N14, but this is weak shape for B at N11] ;W[lk]C[continuing to poke at the shape weaknesses] ;B[qi]C[pretty weak shape still] ;W[qg] ;B[rf]C[not exactly necessary, but prevents both S15 tesuji and S14 hence indirectly protects against N11 cut] ;W[nk] (;B[mf]C[B has no way to protect his own shape anymore] ;W[pi]C[W needs to live, and this allows B to get shape] ;B[ph] ;W[qh] ;B[pj] ;W[ri] ;B[oi] ;W[rj] ;B[qk] ;W[rl]C[but the B shape is still weak, and W is 100% safe] ;B[or]C[good invasion point] (;W[pq] ;B[lq]C[nice technique] ;W[kq] (;B[lp] (;W[kr]C[this is a very simple way to play, as there aren't many ways for B to live now] ;B[lo] ;W[jn] ;B[np] ;W[nn]C[shape, need to disconnect here as R8 sente] ;B[pr] ;W[qr] ;B[mn] ;W[nm]C[solid] (;B[qq]C[great move, necessary for life] (;W[qp]C[solid] ;B[lr] (;W[no] (;B[nq] ;W[mo] ;B[mr]C[incredibly painful] ;W[mp] ;B[ns] ;W[ls]C[correct for endgame as otherwise B plays S2] (;B[ps]C[B is quite happy to take last invasion point, but the group above is unhappy] (;W[ki]C[this is the remaining shape issue] (;B[li] ;W[kj] ;B[rk] ;W[sk] ;B[ql] ;W[rm] ;B[rg] ;W[rh] ;B[hh] ;W[gh] ;B[mg] (;W[ji] ;B[nh] ;W[dq]C[the final big point a rough score estimate that is kind to B puts the score at even on the board (W+6.5)] (;B[ii] ;W[ig] ;B[ih] ;W[kh] ;B[kg] ;W[jg] ;B[hg] ;W[if] ;B[gg] ;W[ff] ;B[fg] ;W[kf] (;B[mk] ;W[ml] ;B[mj] ;W[lg] ;B[ok] ;W[nj]C[unconditional death W+R] (;B[oj] ;W[nl] ;B[qj] ;W[pl]C[W is too solid]) (;B[lj] ;W[mh]C[atari]) (;B[kk]C[there is no tesuji here] (;W[lj]C[atari]) (;W[kl]C[tricked] ;B[lj] ;W[jk] ;B[mh]C[though W seems to have actually gained even if it lives] (;W[eg] ;B[eh] ;W[ef] (;B[fh] ;W[dh]) (;B[fi] ;W[dh])) (;W[ij] ;B[eh] ;W[ei])))) (;B[lf]C[the ko is necessary to avoid unconditional death])) (;B[cr] ;W[dr] ;B[ds] ;W[es] ;B[cs] ;W[er] ;B[cp] ;W[do] ;B[rq] ;W[rr] ;B[rs] ;W[rp] ;B[qs] ;W[sq] ;B[ko] ;W[jo] ;B[ms] ;W[ks] ;B[pm] ;W[pn] ;B[dj] ;W[ej] ;B[ih] ;W[ii] ;B[ke] ;W[nb] ;B[ob] ;W[ea] ;B[ha] ;W[fa] ;B[ga] ;W[mj] (;B[mi]) (;B[lm] ;W[km] ;B[om] ;W[on] ;B[op] ;W[oo] ;B[pe] ;W[ne] ;B[lb] ;W[mb] ;B[me] ;W[md] ;B[dh] ;W[ei] ;B[fd] ;W[fe] ;B[gd] ;W[eg] ;B[hi] ;W[hj] ;B[eh] ;W[fh] ;B[ef] ;W[ff] ;B[mi] ;W[mm] ;B[ln] ;W[da] ;B[ca] ;W[ol] ;B[ll] ;W[ml] ;B[kl] ;W[kk] ;B[kn] ;W[jm] ;B[le] ;W[ld] ;B[kh] ;W[qm] ;B[pl] ;W[qj] ;B[pk] ;W[if] ;B[je] ;W[ig] ;B[jg] ;W[dg] ;B[cg] ;W[fg] ;B[hg] ;W[la] ;B[ka] ;W[oa] ;B[pa] ;W[sg] ;B[sf] ;W[sh] ;B[pi] ;W[ok] ;B[na] ;W[ma] ;B[oa]TW[mc][fi][si][fj][gj][ij][jj][sj][fk][gk][hk][ik][jk][mk][fl][gl][hl][il][nl][sl][em][fm][gm][hm][im][sm][en][fn][gn][hn][in][rn][sn][eo][fo][go][ho][io][po][qo][ro][so][ep][fp][gp][hp][ip][jp][sp][eq][gq][hq][iq][jq][qq][rq][fr][gr][hr][ir][jr][fs][gs][hs][is][js]TB[aa][ba][ia][ja][qa][ra][sa][ab][bb][cb][hb][pb][qb][rb][sb][ac][bc][rc][sc][ad][bd][rd][sd][ae][be][ce][qe][re][se][af][bf][cf][kf][lf][ag][bg][kg][lg][ah][bh][mh][ai][bi][aj][bj][cj][ak][bk][ck][al][bl][cl][am][bm][an][bn][ao][ap][aq][bq][ar][br][nr][as][bs][os]))) (;W[nh]C[maybe W could have gone for the kill] ;B[mj])) (;B[ig]C[B can no longer connect] ;W[mi] ;B[mh] ;W[nh])) (;W[mi]C[this is more direct but] ;B[mh] ;W[li] ;B[nh] ;W[ki] ;B[ig]C[you allow B to connect, though in rubbish shape, but can you profit by killing? I'm not really sure, but it's certainly not as clear a victory as the game] (;W[ji] ;B[ii] ;W[hh] ;B[ih]) (;W[kh] ;B[kg] ;W[le] ;B[lf] ;W[mg] ;B[lg] ;W[ke] ;B[ql] ;W[rm] ;B[ok] ;W[nj] ;B[ol] ;W[hh] ;B[ih]))) (;B[rr] ;W[rq] ;B[qs] ;W[ps]C[B doesn't dare play ko yet, so W gains in endgame])) (;B[mo] ;W[nq]C[flower ko for W])) (;W[oq] ;B[nq] ;W[ps]C[this no longer works!] (;B[nr]C[ok with S3 aji but]) (;B[os]C[best] ;W[rq] ;B[mr]))) (;W[rq]C[a little extra aji at Q5 but otherwise practically the same as but as B can now block Q1 with P1, W still can't attack B more than the game] ;B[rr] ;W[qs]C[you still aren't going to play here as it helps B eyespace] ;B[lr] ;W[no] ;B[oq] ;W[mo] ;B[mp] ;W[ls] ;B[ms] ;W[nr] ;B[ps] ;W[ns] ;B[ks] ;W[mr] ;B[ls] ;W[nq] ;B[rs] ;W[qr] ;B[qp] ;W[rp] ;B[qo] ;W[po] ;B[ro] ;W[so] ;B[rn] ;W[rm] ;B[qs] ;W[sn] ;B[qr] ;W[sr] ;B[sp]) (;W[rr]C[also possible, but leaves more aji, and has almost no endgame effect] ;B[lr] (;W[no] ;B[ql] ;W[rm] ;B[op]C[problematic] (;W[qp] ;B[nq]) (;W[po] ;B[mo]) (;W[mo] ;B[po] ;W[qp] ;B[qo] ;W[ro] ;B[oq] ;W[rq] ;B[oo] ;W[pm] ;B[nr] ;W[mq] ;B[mp] ;W[ps] ;B[os] ;W[ms] ;B[ls] ;W[mr]C[seki])) (;W[oq]C[and you still can't kill locally like this] ;B[nq] ;W[ps] ;B[nr] ;W[no] ;B[mo] ;W[os] ;B[ls] ;W[mq] ;B[mr] ;W[ns] ;B[rq] ;W[qp] ;B[ms]))) (;B[lr] ;W[oq] ;B[nq] ;W[ps] ;B[nr] ;W[no] ;B[mo] ;W[os] ;B[qq] ;W[rq])) (;W[nq]C[hard to kill] ;B[kr] ;W[jr] ;B[mr] ;W[ko] ;B[oq] ;W[np] ;B[nr] ;W[pr] ;B[ls]) (;W[lo]C[better here says leela, its probably right, as there is the O3 weakness, but it is more complicated to read])) (;B[kr] (;W[jr] ;B[mr]C[did B think he didn't have enough territory like this? or B didn't have many ko threats? B does seem to have much more threats as the ko is so heavy for W] ;W[lp]) (;W[lp]C[presumably B fears this variation] (;B[mr] ;W[mq] ;B[lr] ;W[jr] ;B[nq] ;W[mp] ;B[pr] ;W[qr]C[how to live?] ;B[ns] ;W[oq] ;B[ps] ;W[np] ;B[nr]) (;B[mq] ;W[jr] ;B[ks] ;W[pr] ;B[oq] ;W[ms])))) (;W[oq] ;B[pr] ;W[nr] ;B[qp] ;W[qo] ;B[rp] ;W[nq] ;B[rr]C[W's centre has some thinness, with the S7 aji, so pressuring B is a bit harder])) (;B[mi]C[too silly a shape]) (;B[mj] ;W[mk] ;B[pj] ;W[lf] ;B[kg]C[too many weaknesses])) (;B[li]C[more solid, but frankly still pretty bad shape] ;W[kg] ;B[jg] ;W[mj] ;B[mi] ;W[ll]C[W no longer needs to aim at cutting B, but just needs to force B to connect into an eyeless stick])) (;B[jl] ;W[cl]C[this is quite annoying. I suspect B should have tenukied anyway] (;B[ck] ;W[bl] ;B[bm] ;W[am] ;B[bn] ;W[bk] ;B[cj] ;W[ci] ;B[bj] ;W[bi] ;B[ak] ;W[dj] ;B[al]) (;B[bl] ;W[ck] ;B[bk] ;W[cj]))) (;B[jl])) (;B[li]C[hehe, leela even prefers this]) (;B[fg]C[leela is wondering why not here, so am I]) (;B[jl]C[leela's favourite at 41.1])) (;B[kq]C[try to take the big area?] ;W[co]C[B is clearly worried about the kick] ;B[dn]C[B has a bunch of weak groups, and W's groups are all OK despite all having some weaknesses as they are surrounded by weak B shapes] ;W[dl]) (;B[cp]C[Master likes to use this sort of method] ;W[cq] ;B[bq] ;W[co] ;B[bp] ;W[do] ;B[dq] ;W[cr] ;B[dr] ;W[br] ;B[ar] ;W[bo] ;B[cs] ;W[ci] ;B[kq]C[would B dare to enter here?] ;W[jl])) (;B[fd] ;W[fe] ;B[gd] ;W[eg]) (;B[fe] ;W[ff])) (;W[ha]C[the point of D18 is that this no longer gets all the endgame] ;B[ea]C[as B plays here]) (;W[ea] ;B[ha]C[and now O18 is no longer sente])) (;B[hk]C[I don't see why B needs a move at the top though it is huge (time pressure?)] (;W[ga] ;B[fa] (;W[hb] ;B[gb]) (;W[ia] ;B[hb] ;W[ha] ;B[lb] ;W[mb] ;B[la] ;W[ja])) (;W[ha] ;B[ga] ;W[hb] ;B[ia] ;W[ka] ;B[lb] ;W[mb] ;B[la]) (;W[lb] ;B[ha]) (;W[fa] ;B[ga] ;W[fc] ;B[gb] ;W[lb] ;B[ha]) (;W[fc] ;B[gb] ;W[ha] ;B[ia] ;W[lb]C[painful, though O18 sente may also be used, so W should preserve the aji] ;B[ka] ;W[fa] (;B[hb]C[having to connect is painful] ;W[ea] ;B[ga] ;W[bb]C[this is 14 points assuming the left is all B territory, so it should be less than 14 points So it is huge, but not the biggest. Though the top B group was probably reduced an extra 2-4 points. So it is again even bigger than it looks]) (;B[fd]C[capturing for extra liberties fails] (;W[ga]) (;W[fe] ;B[ga]C[this would be B's dream]))))) (;W[og]C[this is weaker shape for eyespace, but aims at B's weaknesses, R13 or Q12 W has a weakness are P14 though] ;B[mf]C[e.g. this is awkward])) (;B[kq]C[have to take the territory first leelabot strongly agrees])) (;W[ib] (;B[fd] ;W[gf] ;B[eb] (;W[fb] ;B[fc] ;W[db] ;B[ef] ;W[ea] ;B[fe] ;W[eb] ;B[ff]) (;W[fc] ;B[fb] ;W[fe]C[W seems to think this is worse than the game presumably J15 has more aji with the space at M17,])) (;B[gf]C[this is shape though it loses the stones] ;W[fd] ;B[hg] ;W[if] ;B[gg]C[seems playable for both. Quite hard to judge this exchange as B has more forcing moves in the centre, maybe B is better]))) (;B[ib] ;W[hb]C[B dead])) (;W[kb]C[W has the right to block here, but L18 isn't worth making B stronger - E15 is the weaker group, but what are the variations?] (;B[hb] ;W[jd] ;B[fb] ;W[eb] ;B[gf]C[is this fight playable?] ;W[gc] ;B[gb] ;W[ef] ;B[hg] ;W[if] ;B[eg] ;W[ib]C[B wins by one liberty] ;B[db] ;W[fa] ;B[da] ;W[ea] ;B[fd] ;W[fc] ;B[ff]) (;B[ib]C[this is the same principle by one liberty] ;W[kc] ;B[fb] ;W[eb] ;B[gf] ;W[gc] ;B[gb] ;W[ic] ;B[hb] ;W[ef] ;B[hg] ;W[if] ;B[ig] ;W[jf] ;B[eg] ;W[ja] ;B[db]))) (;B[gc]C[is this better?] ;W[gf] ;B[fd] (;W[fe] ;B[eb] (;W[fc] ;B[fb] ;W[gd]C[I think B is too happy here]) (;W[fb]LB[fc:A][hf:B]C[maybe this is troublesome?] ;B[hf] ;W[gd] ;B[fc] ;W[if] ;B[gb]C[B can still aim at M17 with O13])) (;W[fc]C[this looks crazy because it is] ;B[hf] ;W[ie] ;B[ff] ;W[fe] ;B[gg] ;W[gd] ;B[gf]C[W bad]) (;W[if] ;B[eb]LB[fc:B] ;W[qn])) (;B[jb] ;W[ie] ;B[gc] ;W[gf] ;B[kc]) (;B[gf]C[leela recommends this] ;W[gc] ;B[hb] ;W[hf] ;B[gg] ;W[hg] ;B[hh] ;W[ih] ;B[ii] ;W[jh] ;B[ji] ;W[ki] ;B[kh] ;W[jf] ;B[hi] ;W[kj] ;B[en])) (;B[nq]C[very important] ;W[ef]C[B worried about this sort of thing?]) (;AE[hc][id]AW[hd]AB[gc] ;B[gd] ;W[ge] ;B[he] (;W[ie] ;B[hf] ;W[gf] ;B[gg] ;W[ef] ;B[if]) (;W[hc] ;B[gb] (;W[eb] ;B[fe] ;W[gf] ;B[ff] ;W[fd] ;B[gg] ;W[hf] ;B[hg] ;W[if] ;B[ef] ;W[hb] ;B[db] ;W[fa]C[good for B with sente?]) (;W[gf] ;B[eb] ;W[if]C[B feels fine with aji at top]) (;W[ie] ;B[fe]))) (;B[ef]C[this is a powerful move, and now I look at it, probably the correct move At the least, it is very important to stop W playing here leela says this loses 1% edit: I guess this is much too solid despite the benefit of simplicity] (;W[hd]C[only move?] (;B[eb] ;W[fb] ;B[fc] ;W[gc] ;B[gb] ;W[fd] ;B[fa]C[annoying endgame]) (;B[gf]C[sente] ;W[eb]C[but this is huge])) (;W[ge]C[this leaves aji everywhere] (;B[eb] ;W[fb] ;B[fc]C[ugly aji]) (;B[gf] ;W[hf] ;B[gg])))) (;W[ef]C[this is certainly not sente] (;B[id]) (;B[he])) (;W[he]C[this is probably an overplay when you are in B's area - letting H17 out is too much H17 was originally aiming to pressure K17, so it is illogical to suppose that you have the right to attack H17 without protecting first. There are far more B stones on the top and left area to fight. But looking it more depth, it is a bit tricky to use the aji directly] (;B[id] ;W[jf]C[though it isn't obvious to me if B can fight back] (;B[jd] ;W[kc] (;B[kd] ;W[lf]C[looks dangerous for B]) (;B[if])) (;B[ie] ;W[if] ;B[hf])) (;B[ef]C[but just this is painful]))) (;B[he]C[we are in B's area, so this remains tempting, but leela disagrees] ;W[df] ;B[ce] ;W[fg] ;B[je] ;W[cf] ;B[ef] ;W[eg] ;B[ff] ;W[gf] ;B[fe] ;W[ge] ;B[fd] ;W[gd] ;B[fc] ;W[gc] ;B[eb] ;W[hd] ;B[gg] ;W[dh]C[leela says it is remains very good for W])) (;B[cb]C[this is much better for endgame, especially given how E18 and E19 could have been sente in the game, so B spent an extra move to protect. This feels bad as W has the extra aji of atari D18, but I didn't see a variation where B G18 was good. If B F18 is required, then this move is much better. But under time pressure, this decision only comes down to feeling.] (;W[db]C[W has to atari? This loses aji around the cut C15, but W isn't strong enough to threaten that anyway]) (;W[gd]C[avoiding the atari to aim at C15 seems like overplay] (;B[hd]C[direct should be ok, though the shape is bad, as W is weak on both sides] ;W[he] ;B[jd] ;W[kc] ;B[ie] ;W[gc] ;B[hb]) (;B[eb] ;W[fb] ;B[ee] ;W[gc] ;B[gf]C[the C15 cut is still no threat] ;W[ce] ;B[cf] ;W[be] ;B[bf] ;W[ea] ;B[db] ;W[bd] ;B[cc] ;W[bc]) (;B[jd])))) (;B[ce]C[this shape looks dumb] ;W[de] ;B[df] ;W[ef] ;B[dg] ;W[fd] ;B[db] ;W[hd]) (;B[cc]C[I'm not sure what W would do here, I guess B's shape does seem pretty submissive] (;W[dh]C[probably still this]) (;W[ed]C[this feels too heavy] ;B[he]) (;W[hd]C[this seems ok, though B might be able to fight back])) (;B[ed]C[leela says this!] ;W[de] ;B[fc] ;W[cc] ;B[eb] ;W[db] ;B[ec] ;W[ce] ;B[cb] ;W[bd] ;B[bb]C[the ponnuki is still weak, and B's extra stone at F17 is reasonably useful] ;W[eh] ;B[dj])) (;B[ed]C[the obvious attempt to resist and aim to attack W or B would like sente for M17 or L16] (;W[cc] (;B[de]C[feels like bad shape to atari if you can't block] ;W[cd] (;B[eb] ;W[ce] ;B[df] (;W[cb]C[this aims at F18]) (;W[db]C[atari might be better, as you get sente])) (;B[ce] ;W[ec])) (;B[cd]C[surely overplay] ;W[de] (;B[bc] ;W[ec] ;B[cb] ;W[db] ;B[cc] ;W[fd]C[if W has the ladder, this is difficult for B] ;B[eb] ;W[ee] ;B[fb] ;W[hd]) (;B[ce]C[tricky] ;W[ec] ;B[db] (;W[ee] ;B[fd] ;W[bc] ;B[df] ;W[eb] ;B[ff]) (;W[cf] (;B[df] ;W[ee] ;B[ef] ;W[fe] ;B[bf] ;W[gc] (;B[cb] ;W[hd]) (;B[eb] (;W[fc]) (;W[fb]))) (;B[bc] ;W[df] ;B[fd] ;W[dh] ;B[di] ;W[eh] ;B[ei] ;W[fi] ;B[ck])))) (;B[cb]C[maybe this is ok, lose a bit in the corner, but force W to make some bad exchanges to live still it does seem submissive] ;W[cd] ;B[eb] ;W[ee] ;B[fd] ;W[cg] ;B[dh] ;W[bh] ;B[bi] ;W[bg] ;B[cj] ;W[bb] ;B[ba] ;W[ab] (;B[lc] ;W[ld] ;B[lb] ;W[kd] ;B[nb]) (;B[kd] ;W[kc] ;B[jd] (;W[ld] ;B[le] ;W[md] ;B[ic]) (;W[lc] ;B[ic] (;W[ng]) (;W[qn])))) (;B[ec]C[this is my favourite? __ it is also leelabot's preferred variation] (;W[cd]C[a little heavy] ;B[cf]C[maybe B can be happy to take sente to deal with the top? I can't see a good move for W locally] (;W[bf] ;B[be]) (;W[je]C[though maybe tenuki is the answer?] (;B[be] (;W[df]) (;W[bd] ;B[bb]C[tesuji available] ;W[df] ;B[cb] ;W[ee]C[but W is still fine])) (;B[ee] ;W[bf]C[this becomes better shape if B has already spent a move, unless W dies ...]))) (;W[cg] (;B[de] ;W[ci] (;B[bh] ;W[dh] ;B[bg] ;W[di] ;B[cf] ;W[cl]C[W success] ;B[] ;W[dg] ;B[] ;W[be] ;B[bf] ;W[cd]) (;B[dh] ;W[bh] ;B[bg] ;W[bf] ;B[bi] ;W[ag] ;B[cj])) (;B[dh] ;W[cd] ;B[lc]C[maybe C13 is too crude])) (;W[ce]C[leelabot's variation] (;B[df] ;W[cf] ;B[cg] ;W[cb]) (;B[cb] ;W[ee] ;B[df] ;W[cf] ;B[dg] ;W[de] ;B[he] ;W[bc] ;B[en])) (;W[de]C[this felt heavy to me, but it is another of leela's preferences] ;B[cb] ;W[bd] ;B[bc] ;W[cd] ;B[bb] ;W[eg] ;B[dj] ;W[cg] ;B[bg] ;W[dh] ;B[ci] ;W[cf] ;B[nq]))) (;W[de]C[this looks too heavy, though maybe possible] ;B[cc] ;W[ee] ;B[fd] ;W[fe] (;B[dk]) (;B[ge] ;W[gf] ;B[he] ;W[dk] ;B[fg]))) (;B[ec]C[looks slow, but maybe ok] (;W[cc] (;B[cd] (;W[cg] ;B[dh] ;W[ce] ;B[bd] ;W[ed] ;B[cb] ;W[fd] ;B[he]) (;W[ce] ;B[bd] ;W[ed])) (;B[ed])) (;W[dh]C[I think this is the follow up, aiming at either C17 or attacking C6 I think I have seen this sort of move played a few times before alphago leela likes it, though is unhappy without the ladder] (;B[di] (;W[cg] ;B[dg] ;W[eh] ;B[ci]C[troublesome for W without the ladder] ;W[ef]) (;W[ei] (;B[dg] ;W[eh] ;B[ci] ;W[ek]C[this is my guess for master's play, but humans find it hard to use the W outside]) (;B[ej]C[maybe this?] (;W[eh] ;B[cg] ;W[fj] ;B[dj] ;W[gi]) (;W[fi] (;B[dj] ;W[dg]) (;B[fj] ;W[dg] ;B[ci] ;W[gi]))))) (;B[dg]C[as C11 is hard] ;W[eg] ;B[di] ;W[eh] ;B[cg] ;W[ee] ;B[ei]))) (;B[cc]C[looks even slower] (;W[dh]) (;W[ed]C[leela says W is very happy] (;B[ec] ;W[fd] ;B[fc] ;W[dh] ;B[ci] ;W[dg] ;B[ej] ;W[gd]) (;B[fb] ;W[dh])))) (;AE[dc]AB[cd] (;W[ec]C[it is equivalent to this. The initial black shape is a bit strange and awkward, H17 a little too far, C12 too close. And this invasion looks good, if a little early] (;B[dc]C[kick is normal] (;W[ed] (;B[de] ;W[ee] (;B[df] ;W[dd]C[bad exchange] ;B[cc]C[the game]) (;B[he] ;W[df]C[this is an issue] (;B[ce] ;W[gf] ;B[hf] ;W[hg]C[aim at C14]) (;B[bf] ;W[db]))) (;B[he]C[but B should jump now] ;W[ce] ;B[be] ;W[de] ;B[bf] (;W[fb] (;B[lc]) (;B[gb] ;W[cc]C[this doesn't actually seem to work] ;B[cb] ;W[bc] ;B[db] ;W[bd] ;B[dd] (;W[bb]) (;W[gc] ;B[gd] ;W[fc] ;B[hb] (;W[bb] ;B[ee]) (;W[fe] ;B[bb])))) (;W[cc] ;B[cb] ;W[bc] ;B[bd] ;W[fb] ;B[eb]))) (;W[de]C[maybe this is better])) (;B[fd]C[this is another possibility especially if C12 were further, say at D10, I think] ;W[ed] ;B[ee] ;W[fc] ;B[gd] ;W[cc] ;B[bc] (;W[dd] ;B[ce] ;W[de] ;B[df] ;W[bb]C[ko might be a good idea] ;B[cb] ;W[db] ;B[dc] ;W[ef] ;B[fe] ;W[cc] ;B[dg] ;W[ca]) (;W[bb] ;B[bd] ;W[db]))) (;W[dd]C[though actually maybe this is still the best]))) (;B[pe]C[as B may play here] ;W[qc] ;B[qb] ;W[rc] ;B[rb] ;W[nb] ;B[pa] ;W[oa] ;B[pb] ;W[re] ;B[qe]C[this is normal shape]) (;B[qb]C[this would gain B 3 points after W O18, preventing monkey jump, but now Q15 is sente. It does seem a slightly small thing to worry about, but I guess it becomes significant in terms of points if B has a stone at R13, then B R17 gains several more points around R15 or if B wants to expand P14 or O13])) (;W[nb]C[but I suppose it is like this exchange and measuring how valuable the O18 move is in this position. Given the B moyo, it is particularly valuable to settle this group, but are there still weaknesses?] (;B[pe]C[this is very good for W, but though Q15 looks so dumb, it is still quite valuable] ;W[pd] ;B[pb]C[this exchange loses W 5 points and an important liberty] ;W[re]C[but W gains a lot over here] ;B[qe]C[this may gain W around 10 points if W gets R12, so I estimate the exchange gains W at least 3 (a bit more than 10/4) points on the right]) (;B[lc] (;W[kd]C[this should now be possible] ;B[jb] (;W[ib]C[but this is still confusing] ;B[kb] ;W[ic] ;B[ld] ;W[le] ;B[hb] (;W[ha] ;B[me]C[W doesn't seem that great] ;W[ke] ;B[md] ;W[hd] ;B[mf]) (;W[ke] ;B[ia] ;W[nf] ;B[he])) (;W[kb] (;B[ib] ;W[lb]) (;B[kc] ;W[lb] ;B[jd] ;W[ic] ;B[id] ;W[ib] ;B[hb] ;W[ja] ;B[ke] ;W[ld] ;B[le] ;W[md]))) (;W[ld] (;B[kc] (;W[jd] ;B[kd] ;W[ke] (;B[je] (;W[jb] ;B[le] ;W[kf] ;B[md]C[still not that easy for W] ;W[ie] ;B[lg] ;W[pe]) (;W[ie])) (;B[le])) (;W[kd]C[this should be fine still] ;B[jb] ;W[jd])) (;B[lb]C[O18 means that this is no longer interesting] (;W[kd]) (;W[kc]C[or here] ;B[kd] ;W[jd]))) (;W[kc]C[this connects solidly])) (;B[kd] ;W[jd] ;B[kc] ;W[ke]) (;B[kc] ;W[kd] ;B[jb] (;W[jd] ;B[kb]) (;W[kb]C[this seems to work now] ;B[lc] ;W[ib] ;B[jd] ;W[ic] (;B[ld] ;W[lb]) (;B[lb] ;W[ld] ;B[ka] ;W[id]))) (;B[he]C[the proper move to continue] (;W[je]C[W would probably respond]) (;W[qn] ;B[je])) (;B[kb]C[annoying shape point] (;W[jb] (;B[kc] (;W[kd]C[difficult to hane] ;B[jd]C[this aji remains, looks difficult for W as B has the relevant ladders] (;W[lb] ;B[ld]) (;W[lc] ;B[lb] (;W[mb] ;B[ld] ;W[ke] ;B[mc] ;W[le] ;B[ic] ;W[je] ;B[id]LB[md:A][qn:B] ;W[qn]C[normally good for B]) (;W[id]C[especially if W had the ladder, ] ;B[je] ;W[mb] ;B[ld] ;W[ke] ;B[le] ;W[kf] ;B[mc] ;W[lf]C[this might be playable]))) (;W[jd]C[but W can extend again] ;B[kd] (;W[ke] ;B[je] ;W[ld]C[B seems totally dead] ;B[kf] ;W[le] ;B[id] ;W[lb] ;B[ib] ;W[lc]C[But it seems that B is good here]) (;W[je]C[or extend again?] (;B[ke]C[seems bad shape now] ;W[kf] ;B[me] ;W[le] (;B[md] ;W[ld] ;B[lf] ;W[lc] ;B[kg] ;W[jf] ;B[mc] ;W[lb] ;B[mb] ;W[ka] ;B[ma]C[an interesting variation!] (;W[of] ;B[ng]) (;W[pe]C[if this is sente, this is pretty bad for B] ;B[qe] ;W[ng] (;B[nf] (;W[pg] ;B[oe] ;W[of] ;B[ne] ;W[pf] ;B[pd] ;W[mg]) (;W[of] ;B[mg] ;W[ne] ;B[mf] ;W[nh])) (;B[mf] ;W[pg]))) (;B[ld] ;W[lf] ;B[md] ;W[nf] ;B[ne] ;W[oe] ;B[mf] ;W[mg] ;B[of] ;W[ng] ;B[mb] ;W[mc] ;B[lb]C[W wins])) (;B[me]C[better] ;W[ke] ;B[md] ;W[of]C[B's shape is bad but W is in two groups in B's area] ;B[nf])))) (;B[lc]C[with O18, this sorts of moves certainly don't work] ;W[ld]) (;B[ld] (;W[lc] ;B[kc] ;W[kd] ;B[mc] (;W[lb] ;B[mb] ;W[ka] ;B[md] ;W[mf]) (;W[le] ;B[lb]LB[je:B][ke:A] ;W[je])) (;W[kd]))) (;W[kc] ;B[jb] ;W[lb] ;B[ic]C[pretty painful on W])) (;B[ic] ;W[jd] ;B[ie]) (;B[ke] (;W[id]) (;W[kd] (;B[je] ;W[id]) (;B[ie] ;W[le] ;B[kf]))) (;B[le] ;W[kd]) (;B[ld] (;W[kd] ;B[lc] ;W[le]) (;W[kc])) (;B[jd] ;W[kd] ;B[id] (;W[dk]) (;W[ke] ;B[jb] ;W[kc])))) (;B[jd] ;W[qe]C[thinking this is more powerful now?] ;B[re] ;W[pd] (;B[qc] ;W[qf] ;B[rf] ;W[qh]) (;B[qf]C[I'm still not clear about this possibility] ;W[qc] ;B[pe] ;W[rd] ;B[qb] ;W[qe] ;B[ep] ;W[qd] ;B[eq]))) (;W[md]C[Master likes this, but in this maybe fears the fight?] (;B[jd]C[biggest point] (;W[qe] ;B[pd] ;W[pe] ;B[oe] ;W[nd] ;B[of] ;W[re] ;B[rd] ;W[qh] ;B[oh]) (;W[pf] (;B[rf]C[W still unsettled?]) (;B[oe] ;W[pe] ;B[pd] ;W[of] ;B[ne] ;W[mf] ;B[nd] ;W[nf] ;B[mc] ;W[lc] ;B[me] ;W[le] ;B[ld] ;W[kd]C[?]))) (;B[qf]C[master thinks this is bad, but this is the extremely common pro sequence] (;W[jd]) (;W[fc])))) (;B[ld]C[a pincer would be interesting, but Fan likes territory]))