(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]TM[3600]
GN[hokutose-mathmo(B) IGS]PW[hokutose]PB[mathmo]WR[4d]BR[6d]DT[2022-11-23]CP[
  Copyright (c) PANDANET Inc. 2022
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]EV[Internet Go Server game: hokutose vs mathmo]PC[IGS:  igs.joyjoy.net 6969]US[Brought to you by IGS PANDANET]C[
 hokutose 4d?: 99 Hi! Have a nice game
 mathmo 6d+: 99 Hi, have a good game

I learnt that there are tough games even on board 3 of the C league.

Tight game all the way through, within +/- 3.
AI sensei says, though on low playouts it thinks W was dead on the lower side which is false. I thought I had to kill or else I had insufficient territory. There were just a few big mistakes towards the end. 

I basically had 2 corners and 2 30 pt moyos and W had a (dying) group in both. W had one  60pt moyo and another 20pts on the right.

W only had 2 living groups and I only had 1 spanning the whole board.

Cemented my puzzlement about hidden messages in Go games. This was even more blatant than usual. But since it was in part my creation, I can't completely reject it. It seems quite arty, though I can't comprehend how it was made.

W forms number like shapes of 3, 7 on the right. (37*18=666?), in the end I am leading by 73 points, the game ends in time for me to send my report at 22:37. 37 could correspond to Cambridge Go society or Combinatorial Game Theory.

3 could represent 3rd board or C league.

Left seems like it could represent ice mirrors, or Spain, UK being in Western time.

W's dead group in the centre seems like a lightning bolt connecting heaven and earth for a short time, or CERN particle beam? My opponent's name was Ignacio Cernuda.

Perhaps the light and dark side of the moon?

hokutose seems to mean Northern fighting se. Funny that AI sensei's score estimate was so wrong.

mathmo means math (numbers etc) to me, nothing much else, but interpretations of others seems to lead inevitably elsewhere.]RE[B+Resign]LT[]NB[34]NW[32]RR[Normal]
;B[pd]BL[3539]
;W[dd]WL[3597]
;B[pp]BL[3500]
;W[dp]WL[3587]
;B[cq]BL[3493]
;W[cp]WL[3581]
;B[dq]BL[3490]
;W[ep]WL[3579]
;B[fq]BL[3483]
(;W[go]WL[3553]C[slightly unusual to play this early, I can't complain]
;B[gr]BL[3480]
;W[dj]WL[3522]
;B[cc]BL[3468]
;W[cd]WL[3520]
;B[dc]BL[3464]
;W[fc]WL[3513]
;B[ec]BL[3437]
;W[ed]WL[3510]
;B[fb]BL[3437]
;W[qc]WL[3479]
;B[pc]BL[3248]C[standard because R3 is normally met by Q3 even after G5]
;W[qd]WL[3475]
;B[qf]BL[3202]
;W[qe]WL[3305]
;B[pe]BL[3200]
;W[rf]WL[3304]
;B[gc]BL[3198]
;W[fd]WL[3303]
;B[bc]BL[3198]
;W[qg]WL[3302]
;B[pf]BL[3196]
;W[qb]WL[3300]C[all good according to AI sensei]
;B[gd]BL[3196]C[I thought this was obvious, but AI sensei though about H6]
;W[ge]WL[3286]
;B[he]BL[3192]
(;W[gf]WL[3282]
;B[hf]BL[3181]C[of course]
;W[hg]WL[3248]
(;B[gg]BL[3162]C[basically forced, I have no good move otherwise]
;W[ef]WL[3219]
(;B[ig]BL[3120]C[-1 apparently because B could have lived and made D10 inefficient while still leaving B15]
;W[hh]WL[3216]
;B[ih]BL[3118]
;W[hi]WL[3211]
;B[ii]BL[3116]
;W[hj]WL[2931]
;B[ij]BL[3082]
(;W[ik]WL[2928]
;B[hk]BL[3016]
;W[fj]WL[2756]
;B[jk]BL[2936]C[slightly better for B]
;W[il]WL[2752]
;B[jl]BL[2934]
;W[im]WL[2737]
;B[jm]BL[2913]
;W[in]WL[2723]
(;B[pg]BL[2826]
;W[qh]WL[2700]
;B[ph]BL[2824]
;W[ob]WL[2624]
;B[qi]BL[2790]
;W[ri]WL[2622]
;B[pb]BL[2775]
;W[pa]WL[2619]
;B[nc]BL[2774]
;W[mb]WL[2493]
;B[nb]BL[2772]
;W[na]WL[2491]
;B[oc]BL[2767]
;W[oa]WL[2490]
(;B[lc]BL[2720]C[apparently W is slightly ahead or even here.]
;W[qj]WL[2485]
;B[pi]BL[2718]
;W[rk]WL[2478]LB[oc:8][od:7][oe:6][of:5][og:4][oh:3][oi:2][oj:1]C[B has 8 by 8 block of area, then 3 by 6 in upper left and 3 by 7 lower left.

This is 64 + 39 = 103. Probably 14 ish on the lower right with some extra potential, say 120 stones so far.

W has 8 or 9 by 13 on the left subtract around 7 for B15 times 2 as B gets stones. is 96. Then with M18 crawl and clamp almost in sente, W expects 15 + around 3*11 on the right which is 49. For a total of 145.

B has the first move which should recuperate 7 stones. 

Then by this count B doesn't have enough. So B really needs to play tight at the boundaries.]
(;B[jn]BL[2366]C[using G9 sente, an ok move]
(;W[ok]WL[2415]
;B[io]BL[2363]
;W[ho]WL[2412]
(;B[ip]BL[2294]C[slack, now W is leading]
(;W[gm]WL[2202]C[even more slack]
(;B[pn]BL[2202]C[ok locally. I have to kill on the lower side pretty much.

suddenly 8 * 4 stones ish - 14 compared to my count is 18 more with a move and potential remaining.

coutnign the K6 wall of 4 stones which is likely to add 4*2 at least, it becomes 26 more.

This explains the total quite well.

However, W still seems to have some initiative.]
(;W[pq]WL[1807]
;B[qq]BL[2174]
(;W[oq]WL[1700]
;B[qr]BL[2162]
;W[op]WL[1682]
;B[po]BL[2147]
;W[lp]WL[1539]
(;B[kq]BL[2005]
;W[lq]WL[1530]
;B[kr]BL[1956]
;W[nn]WL[1523]
;B[om]BL[1811]C[looks like only hope]
;W[ln]WL[1448]
;B[mm]BL[1749]
;W[lr]WL[1385]
(;B[os]BL[1742]
;W[mn]WL[933]C[no longer killable]
;B[ko]BL[1686]
;W[nm]WL[748]
;B[nl]BL[1683]
;W[ml]WL[746]
;B[ll]BL[1237]C[seems like only shape but if ko then there are a lot of threats]
;W[mk]WL[679]
;B[nk]BL[1235]
;W[nj]WL[585]C[bad to exchange these]
;B[ol]BL[1232]
;W[lm]WL[497]
;B[lk]BL[1230]
;W[lj]WL[487]
;B[mi]BL[1221]
;W[mj]WL[486]
(;B[pk]BL[1171]C[greedy]
(;W[li]WL[372]
;B[nr]BL[726]C[ending the ko but this doesn't work with Q9]
;W[pj]WL[349]
;B[oj]BL[724]
;W[oi]WL[347]
;B[ok]BL[722]
;W[nq]WL[107]
;B[mr]BL[717]
;W[ps]WL[50]
;B[ls]BL[679]
;W[ms]WL[43]
;B[ns]BL[675]
;W[mq]WL[37]
;B[pr]BL[670]C[at least this way I get solid and territory, but W is still leading when W lives]
;W[mh]WL[600]
;B[nh]BL[667]
(;W[lg]WL[575]C[already dead now

130 is losing move.]
;B[ni]BL[591]
;W[ng]WL[573]
;B[oh]BL[590]
;W[me]WL[562]
;B[ld]BL[584]C[I don't need much time to kill this, it is obviously dead.]
;W[kf]WL[481]
;B[kh]BL[581]
;W[lh]WL[469]
;B[le]BL[579]
;W[je]WL[331]
;B[id]BL[563]
;W[if]WL[299]
;B[jg]BL[531]
;W[kc]WL[276]C[quite hopeless]
;B[lb]BL[526]
;W[ic]WL[197]
;B[la]BL[506]
;W[jd]WL[112]
;B[hb]BL[492]
;W[ib]WL[109]
;B[hd]BL[474]
;W[kb]WL[102]
;B[kd]BL[472]C[nice symmetric positions appearing though.

Including N7 rotated with P11.]
;C[a lightning bolt, 

a 3? on the left,

an upside down L on the upper right

one massive moyo.

like the light and dark side of the moon?

or spain and the uk playing on the west.

a cup at the top?]OS[Corsari][FrenchDude][Mir0slaV][Rerefresh2][Salzur][Xiangwei03][anduril][baldur][chmeee][goleada][goripper][kango][kisekigo][palmero][saraneth][siskin][t1943818])
(;W[ni]
;B[lh]
;W[mg]
;B[kh]
;W[mc]
;B[md]
;W[me]
;B[nd]
;W[ld]
;B[lb])
(;W[ng]
;B[oh]
;W[ni]
;B[lh]C[this also looks dead]))
(;W[ns]
(;B[ps]
(;W[nr]
;B[ls]
;W[mq]
;B[ms]
;W[np])
(;W[nq]C[this was my incorrect reading]
;B[oo]
;W[no]
;B[lo]
;W[mo]
;B[mp]
;W[or]
(;B[ms])
(;B[ls]
;W[mr])))
(;B[oo]
;W[no]
(;B[nr]
(;W[ps]
;B[ms]
(;W[nq]
(;B[mr]
;W[ls]
;B[pr]
;W[or]
;B[mq])
(;B[ls]
;W[mr]
;B[pr]
;W[or]
;B[qs]
;W[mp]))
(;W[or]
;B[nq]
;W[ns]))
(;W[nq]
;B[mr]))
(;B[lo]
;W[mo]
;B[mp]
;W[kp]
;B[jp]
;W[nq]
;B[ls]
;W[or]
;B[mr]
;W[mq]
;B[ms]
;W[jq]
;B[jr]
;W[iq]))))
(;B[oj]C[shape to not get disconnected in sente]))
(;B[mn]C[killing is good enough for B as P7 is pushing the boundary further and the lower right side has also mostly become B's]
;W[mo]
;B[os]
;W[kp]
;B[iq]
;W[kn]
;B[ko]
;W[nm]
;B[nl]
;W[ml]
;B[lm]
;W[ol]
;B[no]
;W[nk]
;B[oo]))
(;B[no]C[the vital point]))
(;W[qr]
;B[oq]
;W[pr]
;B[or]
;W[qp]
;B[rq]
;W[rr]
;B[rp]
;W[qo]
;B[ro]
;W[qn]
;B[po]
;W[rn]
;B[ql]
;W[rm]
;B[qm]
;W[rl]
;B[pj]))
(;W[nj]
(;B[mi])
(;B[ni]C[even this is possible when B is solid which is why I wasn't too worried here.])))
(;B[be])
(;B[oj]C[I thought about this but thought it was too bad shape]
;W[nk]
;B[pk]
;W[pl]
;B[qk]
;W[ql]
;B[pj]
(;W[qp])
(;W[rj]
;B[ol]
;W[pn]
;B[nl]
;W[nq]))
(;B[nj]
;W[nk]
;B[pn]))
(;W[fp]))
(;B[gk]
;W[gj]
;B[hn]
;W[hm]
;B[gn]
;W[gm]
;B[fn]
;W[fm]
;B[en]
;W[fp]
;B[cn]
;W[bo]
;B[bn]
;W[bq]
;B[em]
;W[fk]
;B[ck]
;W[bj]))
(;W[bd]C[but this is bigger]))
(;B[be]C[apparently this was urgent]
;W[bg]
;B[cg])
(;B[bd]C[even this works but]
(;W[bf])
(;W[be]
;B[bf]
;W[ae]
;B[df]
;W[ce]
;B[gh]
;W[fi]
;B[eg]C[not completely clear what is happening here but the aji looks terrible]
;W[dg]
(;B[fg]
;W[ff]
;B[ee]
;W[fe]
;B[dh]
;W[cg]
;B[ch]
;W[bg]
;B[bh]
;W[bj])
(;B[dh]
;W[cg]
;B[ch]
;W[fg]
;B[cj])))
(;B[ok]C[cramped shape when R6 is so natural]))
(;B[rj]C[apparently should be here]))
(;B[pb]C[I underestimated the value of this. In the game, W got around 20 points here in sente which is ridiculously big.

even if W lives inside, this move is probably worth it because R19 sente is big, and if W plays Q19, probably W can't live inside]
(;W[mh]
;B[ni])
(;W[hd]C[too close to B's alive group normally, needs support]
;B[hc]
;W[id]
;B[je]
;W[ib]
;B[kc]
;W[gb]
;B[hb]
;W[ha]
;B[ga]
;W[ia]
;B[ea]
;W[ic]
;B[gb]
;W[kb]
;B[lc]
;W[lb]
;B[mc]
;W[mb]
;B[nb]
;W[jc]
;B[ja]
;W[kd]
;B[kf]))
(;B[oh]C[I knew this wasn't shape as there was too much aji inside and O14 cut too]))
(;W[hk]C[expected]))
(;B[gh]
;W[ig]
;B[je]
;W[eh]
;B[hi]
;W[kg]
;B[le]
;W[jf]
;B[ke]
;W[ji]
;B[gk]
;W[ik]
;B[hl]
;W[ek]C[something like this?]))
(;B[ig]
;W[ih]
;B[jg]
;W[hh]))
(;W[hf]C[The old self play games have this.]
;B[gf]
;W[fe]
;B[ie]
;W[if]
;B[je]
;W[gg]
;B[jf]C[perhaps this isn't good shape for W]))
(;W[qc]))