(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2] RU[Japanese]SZ[19]KM[5.50] PW[Fujisawa Hosai 9p]PB[Go Seigan 9p]C[With all the fuss these days about Alphago, Leela, Zengo, Skynet etc I thought it would be good to go over some pro old games from when humans were still the dominant life form on the planet, might even go over a shusaku game at some point!] ;B[qd] ;W[cp] ;B[pq] ;W[dc] ;B[od] ;W[ep] ;B[de] ;W[po]C[nice little bit of mirror go from a couple of 9 dans!] ;B[qo] ;W[qn] ;B[qp] ;W[ce] ;B[dd] ;W[cd] ;B[ec] ;W[cf] ;B[df]C[large avalanche] ;W[dg] ;B[cc] ;W[db] ;B[bc] ;W[eb] ;B[cg] ;W[eg] ;B[fd] ;W[fc] ;B[ed] ;W[gd] ;B[gc] ;W[fb] ;B[bd] ;W[ch] ;B[bg] ;W[hc]C[I imagine this is an old (and therefore "bad") variation of the large avalanche but I doubt for someone at my level playing this could be considered disastrous. white seems to have (almost) sealed black in, but with some weaknesses (and a potential problem in the bottom right) while black has a sizeable, but not massive corner] (;B[pn]LB[fe:A][bh:B]C[The shape in the top left looks unfinished to me, maybe black wants to take sente to punish white in the botoom right? Perhaps black is thinking that only one of F15 or B12 is sente for white - either white seals off the left side (but leaves a very wide gap) or seals off the centre, but leaves the left side undercut?] (;W[qm] ;B[pk]C[slightly odd looking to me but maybe I just haven't seen this before] ;W[on] ;B[pm] ;W[pl] ;B[om] ;W[ol] ;B[nm] ;W[qk] ;B[jp] ;W[hq]TR[aa][ma][na][oa][pa][qa][ra][sa][ab][mb][nb][ob][pb][qb][rb][sb][ac][oc][pc][qc][rc][sc][ad][cd][ae][be][ce][af][bf][cf][ag][rp][sp][nq][oq][qq][rq][sq][lr][mr][nr][or][pr][qr][rr][sr][ls][ms][ns][os][ps][qs][rs][ss]SQ[ca][da][ea][fa][ga][ha][ia][gb][hb][gc][rj][sj][rk][sk][ql][rl][sl][rm][sm][ap][bp][aq][bq][cq][dq][eq][fq][ar][br][cr][dr][er][fr][gr][hr][ir][as][bs][cs][ds][es][fs][gs][hs][is]C[I think I'd be happy as either player at this point, black seems to have more solid territory but white has some serious potential on the left side too] ;B[nl] ;W[ok] (;B[cq]C[I think the probe here is to decide how to finish the upper left corner, if black takes the corner from white then the move at B12 become more important, but if white takes the corner then F/G15 becomes more important] ;W[dq] ;B[co] ;W[bp] ;B[do] ;W[dp] ;B[dl]C[so now white really wants F15 instead of G12] ;W[lp]C[but not yet it seems! Maybe they still haven't decided...?] (;B[iq] ;W[op] ;B[oq] ;W[ln] ;B[mo] ;W[lo] ;B[hp] ;W[gq] ;B[np]C[black is playing very solid, maybe thinking he is ahead on points and not give white any let up?] ;W[in] ;B[gp] ;W[io] ;B[ip] ;W[fn] ;B[gn] ;W[gm] ;B[fq] ;W[cj] ;B[fm]C[I'm sure black knows everything is fine but I would be very uncomfortable here, looks like two weak groups developing for black...] ;W[en] ;B[hm] ;W[gl] ;B[hn] ;W[kl] ;B[gj] ;W[fk] ;B[bh]C[Finally! Now the group at C5 is weak this is clearly the better side for black to play] ;W[hl] ;B[ci] ;W[fe]C[so white gets the other point] ;B[bf] ;W[mc] ;B[qh] ;W[ne] ;B[nk] ;W[im] ;B[dj] ;W[fr]C[some how it looks like the left side is turning black...] ;B[fp] ;W[gr] ;B[eo] ;W[dm] ;B[er] ;W[dr] ;B[fo] ;W[el] ;B[ck] ;W[cm] ;B[lr]C[the shape looks so full of holes but the connextion seems to just work!] (;W[qf] ;B[nd] ;W[md] ;B[me] ;W[nf] ;B[le] ;W[pd]C[interesting... not sure I understand this move imediately, it certainly didn't immediately spring to my mind] (;B[pe] ;W[pc] ;B[pf] ;W[oe]C[really?! this feels like black proved Q16 was a terrible move...] ;B[ng] ;W[mf] ;B[pj] ;W[oj] ;B[qj] ;W[og] ;B[oh] ;W[pg] ;B[nj] ;W[qg] ;B[oi]C[so a trade, corner for dead group on the side, I wonder who profitted?] ;W[mg] ;B[kg] ;W[he] ;B[gf] ;W[hf] ;B[ik] ;W[kh] ;B[il] ;W[kj] ;B[jm] ;W[jo] ;B[jj] ;W[ji] ;B[ii] ;W[ei] ;B[ig] ;W[jl] ;B[hg] ;W[ef] ;B[be] ;W[gh] ;B[ge] ;W[hd] ;B[gg] ;W[gi] ;B[fj] ;W[ej] ;B[ek] ;W[dk] ;B[jh] ;W[hj] ;B[ki] ;W[kp] ;B[eq] ;W[es] ;B[jr] ;W[lj] ;B[lh] ;W[mn] ;B[rh] ;W[rg] ;B[qc] ;W[pb] ;B[jd] ;W[sh] ;B[si] ;W[sg] ;B[ek] ;W[fi] ;B[rj] ;W[je] ;B[ld] ;W[lc] ;B[ie] ;W[if] ;B[jf] ;W[id] ;B[kd] ;W[jc] ;B[kc] ;W[kb] ;B[ke] ;W[jb] ;B[bo] ;W[bj] ;B[di] ;W[bk] ;B[bq] ;W[ap] ;B[bs] ;W[cr] ;B[br] ;W[ar] ;B[fs] ;W[gs] ;B[nn] ;W[mp] ;B[dk] ;W[bm] ;B[ao] ;W[aq] ;B[hr] ;W[mr] ;B[no] ;W[lq] ;B[ll] ;W[km] ;B[nr] ;W[kr] ;B[hs] ;W[cb] ;B[bi] ;W[bb] ;B[aj] ;W[bl] ;B[dh] ;W[eh] ;B[nh] ;W[ac] ;B[js] ;W[ms] ;B[ks] ;W[ls] ;B[hk] ;W[gk] ;B[ij] ;W[lm] ;B[lk] ;W[kk] ;B[mh] ;W[ns] ;B[os] ;W[ph] ;B[pi] ;W[hh] ;B[ih] ;W[hi] ;B[ad] ;W[ab] ;B[lf] ;W[of] ;B[qe] ;W[nc] ;B[ai] ;W[ho] ;B[go] ;W[mj] ;B[ie] ;W[mq] ;B[nq] ;W[je] ;B[rb] ;W[re] ;B[ie] ;W[fg] ;B[kq] ;W[jq] ;B[fs] ;W[cs] ;B[kq] ;W[ak] ;B[am] ;W[jq] ;B[rd] ;W[sc] ;B[kq] ;W[mk] ;B[ml] ;W[jq] ;B[se] ;W[rf] ;B[kq] ;W[or] ;B[pr] ;W[jq] ;B[ic] ;W[hb] ;B[kq] ;W[bn] ;B[an] ;W[jq] ;B[lg] ;W[oc] ;B[kq] ;W[ps] ;B[qs] ;W[jq] ;B[ds] ;W[as] ;B[kq] ;W[ri] ;B[qi] ;W[jq] ;B[dn] ;W[em] ;B[kq] ;W[lr] ;B[mi] ;W[jq] ;B[je] ;W[kq] (;B[li] ;W[mm] ;B[jk] ;W[cn] ;B[al] ;W[fl] ;B[cl] ;W[ff] (;B[ee]) (;B[es] ;W[ee])) (;B[es] ;W[li] ;B[jk] ;W[mm] ;B[cl] ;W[cn] ;B[al] ;W[fl] ;B[ee] ;W[ff]C[White wins by 0.5 points! A brilliant game and not a bot in sight!])) (;B[pc] ;W[pe] ;B[qc] ;W[nb] ;B[ob] (;W[pj]) (;W[re] ;B[sd] (;W[pj]) (;W[oi]C[I'm not sure who did better here, black got a small corner and sente plus maybe an attack on the N17 group (although teh M17 group in very week so probably there is little if anything here...) White got a large side with solid points but lost sente. A very rough count here (by me, a kyu player who struggles with counting :P) puts black ahead but a few points and with sente But black's M15 group looks incredibly weak and white hass a fair bit of potential on the top side as well so maybe this is not so good for black])))) (;W[kq] ;B[jr] ;W[kr] (;B[ks] ;W[mr] (;B[lq] (;W[mq] (;B[ls] (;W[mp] (;AE[mp][lq][mq][ls]) (;AE[mp][lq][mq][ls])) (;AE[lq][mq][ls])) (;AE[lq][mq])) (;AE[lq])) (;B[mq])) (;B[hr]) (;B[eq] ;W[es] ;B[hr] ;W[hs] (;B[is]) (;B[ir] ;W[ds] ;B[ks] ;W[mr] ;B[mq]C[looks lik it does!]))) (;W[mq] (;B[mr] ;W[nq] ;B[nr] ;W[no]) (;B[nr]C[duh] ;W[mr] ;B[ms] ;W[kr] ;B[kq] ;W[lq] ;B[ls] ;W[ir] ;B[jr] ;W[js] ;B[ks]C[everything seems fine!])) (;W[kr] ;B[kq] ;W[lq] ;B[jr]) (;W[mr] ;B[mq] ;W[lq] ;B[kr])) (;B[io] ;W[op] ;B[oq] ;W[ln] ;B[mo] ;W[lo] ;B[ll]C[feels to me like black can attack the white group more with J5 than J3] ;W[nq]C[perhaps this way of playing is dangerous for the corner?])) (;B[bp]C[maybe I would have played this probe? Mostly because I am more confident of how it works than at C3] (;W[co] ;B[cq] ;W[dq] ;B[cr]LB[fe:B][ge:A] ;W[fe] ;B[bf]) (;W[bo] ;B[co]C[etc etc]))) (;W[fe] ;B[bf]LB[bh:A]) (;W[bh] ;B[bf]LB[ge:A][di:F][cl:E][co:D][bp:C][cq:B])) (;B[ge] ;W[hd] ;B[ff]C[I think I would be inclined to play this way to prevent white completely sealing in, at the very least take the atari at G15 But who am I to question Go Seigan!] ;W[pn] ;B[nq] ;W[pj]C[for example...]))