Re: jlt - Ian Butler Jubango (Game #2)
Posted: Sun Jan 27, 2019 10:34 am
by Bill Spight
Some more comments. 
Courage, mes braves!
Courage, mes braves!
Danton wrote:De l'audace! Encore de l'audace! Toujours de l'audace!
(;AP[GOWrite:3.0.15]GM[1]SZ[19]ST[2]CA[UTF-8]FF[4]BR[7k]PC[OGS\: https\://online-go.com/game/16309801]DT[2019-01-27]RU[Japanese]FG[259:]PB[jlt]RE[B+25.50]CP[online-go.com]PM[2]KM[6.50]OT[5x45 byo-yomi]GN[ ]WR[9k]TM[3600]PW[Ian Butler]
;B[pd];W[dc]
(
;C[*** See variation.]B[pp]
;W[dp];B[ce]
;C[*** AI style.]W[fd]
(
;C[*** Too close, as you late notice. See variations.]B[dg]
;W[cd]
;C[Now D13 is misplaced.]B[de]
;C[bit slow. White afraid of weakness at E17.]W[bd]
;LB[ci:C][cj:A][ck:D][fq:B]C[White couldn't decide on A, C or D for a pincer, so went with the easier variation.
*** A feels right to me, as Black has no happy pincer against it.]B[cn]
;C[*** Another AI style play.]W[fq]
(
;C[*** This slide is out of favor. See variation.]B[bp]
(
;C[white doesn't finish joseki. In retrospect, a mistake.
*** Maybe so. Especially as White is strong in the top left. The saying is, Don't play close to strong stones. See variations.]W[nc]
;B[qf]
;C[*** Looks tempting, but too close to strength.]W[jd]
;B[hq];W[cq];B[bq]
;C[white didn't mind giving black some territory here, because he was undercut at B15 anyway.]W[dn]
;B[cm]
;C[very aggressive. But Leela also recommends this.
*** Good play, utilizing the strength that White has built up towards the left.]W[jq]
;B[ho]
;C[white could link up underneath, so doesn't have to be afraid yet.
*** Leaning attack.]W[dm]
;B[dl]
(
;C[this is probably overplay, though.White is thinking\: you don't learn from your games if you play timid.But there are limits, of course.
*** White should continue to lean. The left side is big now. See variation.]W[hm]
;B[jp];W[kq];B[kp]
(
;C[*** Timid. Hane at the head of two stones. See variation.]W[lq]
;C[black felt he was pushing from behind.White felt he was being pushed into a dangerous situation. Both players didn't really like the situation, haha!
*** Yeah, pushing from behind is not good. And White missed his opportunity on the previous play.]B[lp]
;LB[mp:A]C[A would be a good answer for black.
*** Maybe. Anyway, it's the shape play. A White play there would be quite strong.]W[nq]
;C[this is okay, too.]B[no]
(
;C[*** See variation.]W[pr]
(
;C[*** At this point the corner is small. See variation.]B[qr]
;W[pq];B[qq]
;C[black helped white become strong, but in return got a good corner.]W[op]
(
;C[*** See variation.]B[po]
;C[*** Strengthens Black needlessly. Not good.]W[mp]
;B[mo]
(
;C[*** Because of Black's strength, thanks to White 40, this is not good, either.
See variation.]W[oo]
;LB[pn:A]C[white, however, is not dissatisfied with the result because the wall has some holes in it. In fact, cutting at A is a good move, one that Leela suggests. One that white thought about for a minute, too.
*** Black threatens double atari, thanks to White 40. And yes, White should probably cut at A. Here is where the saying, if your are not going to cut, don't push through, would apply.
]B[on]
(
;C[*** Not so good, as it turns out.]W[ql]
;C[*** Double atari. Natch!]B[np]
;W[oq];B[mq];W[mr]
;C[*** Better for Black than if White had cut.]B[qn]
;W[pm];B[pn];W[qi]
(
;C[*** See variation.]B[oi]
(
;C[*** Passive. The general rule is to cut a sector line. See variation.]W[rm]
(
;C[*** See variation.]B[qj]
;C[probably a mistake? White thought S10 would be too passive. But this makes black stronger.]W[pj]
;B[pi];W[rj];B[qh];W[ri]
(
;C[*** See variation.]B[oj]
;W[pk]
;C[*** Strengthens White needlessly.]B[oc]
;W[nd]
;C[*** Strengthens White needlessly.]B[eo]
;W[do];B[fm];W[el];B[dk]
(
;C[*** See variation.]W[em]
;C[*** Black does not have to save Black 69. It has done its job.]B[fn]
(
;LB[gl:A]C[elephant's eye, but white thought it'd help him get out.
*** Does not break a sector line, and is not sente. See variation.]W[fk]
(
;C[*** Chasing from behind. See variation.]B[gl]
;W[gk];B[hl]
(
;C[*** Maybe objectively correct. But see variation.]W[ei]
(
;C[*** See variation.]B[fh]
(
;C[here comes a big reading mistake for white. White knows about the "trick", the move at D2. But, he has read out that it doesn't work in this case, because of the D4 string of stones and liberties. However...
*** This is not the hot spot now. See variation.
]W[br]
(
;C[*** Good fighting spirit. But see variation.]B[dr]
(
;C[*** See variations.]W[cr]
(
;C[... it becomes obvious very painfully that it does work. Major loss for white and an emotional slap in the face.
*** See variation.]B[eq]
;W[ep];B[fr]
(
;C[*** See variation.]W[fo]
(
;C[*** Not good. Who cares about one stone?
See variation.]B[en]
(
;C[*** See variation.]W[gi]
(
;C[*** See variation.]B[gh]
;C[white goes aggressive, but because of that mistake below, he is not reading properly and the concentration has slipped.Still, this is also Leela's move, so the instinct is good!
*** Banzai1]W[ci]
;B[fi]
(
;C[the follow-up isn't.
*** Bad shape. Connecting stones that are already connected. See variation.]W[ek]
;C[*** Good advantage Black!
End of comments.]B[dj]
;C[ ]W[di];B[ej];W[fj];B[bk];W[hk]
;LB[il:A]C[cut at A is big.]B[ik]
;W[hi]
;LB[ec:B][ff:A]C[White could respond at A, that would be strong. But because of the weakness at B...]B[hd]
;C[...he plays chicken Go. Note that he is also still mentally slapped from the reading error below\;]W[fc]
;B[ic]
;C[black noticed this move is slow, but in this case it's a whole lot better than at F17, because otherwise the white stones could become very weak.]W[jc]
;B[hf]
;C[slow. A running thing in this game is the D13 stone(s) that could've been made weak/attacked a few times, but white never did so.]W[jf]
;B[lc];W[ld]
;C[slight mistake for black. He needed this move at M18 for maximum damage.]B[nb]
;W[mb];B[ob];W[lb];B[be];W[ae];B[af];W[ad];B[bg]
;C[very slow, doesn't accomplish much. It's obvious now that black has this game. White is losing the will and the opportunities to fight.]W[ok]
;B[nl]
;C[monkey jump or keima would've been better, probably.]W[rn]
;B[ro]
;LB[il:A]C[white's last attempt. Eyeing the cut at A.Unfortunately for white, all he does is ask black to fix it. He needs to cut there immediately. The reason he doesn't is because he is afraid for this white group, it can still be reduced to one eye.]W[ij]
;B[il];W[jj];B[kk]
;C[now the white group is definitely safe, but black got a big territory in the middle.]W[hh]
;B[gf];W[kj];B[lk];W[ir];B[gq];W[qs];B[rs];W[ps];B[rq];W[sf];B[rg];W[sg];B[sh];W[rh];B[se];W[si];B[rf];W[sh];B[re];W[nf]
;C[from here, the game is done for white.There is some fun endgame in the bottom (for white), but it is all moot.]B[mh]
;W[iq];B[ip];W[gb];B[go];W[pg];B[ph];W[ib];B[ig];W[jh];B[jg];W[kf];B[kg];W[ar];B[cp];W[dq];B[fp];W[co];B[bo];W[jk];B[jl];W[om];B[nm];W[nk];B[og];W[of];B[pf];W[ng];B[oh];W[ee];B[ef];W[mj];B[mk];W[nj];B[lj];W[lg];B[mg];W[mf];B[ih];W[ii];B[kh];W[hc];B[id];W[if];B[hg];W[gd];B[he];W[hr];B[aq];W[nh];B[lh];W[ni];B[qg];W[od];B[pe];W[gr];B[dd];W[cc];B[ed];W[fe];B[ec];W[eb];B[lf];W[le];B[sn];W[sm];B[so];W[na];B[pb];W[ds];B[er];W[fs];B[fq];W[es];B[oa];W[ma];B[qm];W[rl];B[oe];W[ne];B[ie];W[je];B[ff];W[ol];B[ji];W[mp];B[ki];W[mq];B[lg];W[mi];B[li];W[tt];B[tt]
)
(
;W[ej];B[ek];W[bk];B[bl];W[ck];B[cl];W[fl];B[fj]
(
;C[*** Difficult fight, but White looks like he has the advantage.
See variation.]W[bg]
)
(
;W[gn];B[gm]
;C[*** If need be, this ladder works.]W[il]
)
)
)
(
;B[ci]
)
)
(
;W[ci];B[bj];W[cj];B[bk]
;C[*** White has a good advantage.]W[fi]
)
)
(
;C[*** Advantage Black.]B[ci]
)
)
(
;C[*** Banzai!]W[ci]
;B[ek];W[fl];B[fi];W[ej];B[fj];W[bk];B[bl];W[ck];B[cl]
;C[*** Black may still have the edge, but White has good chances.]W[bg]
)
)
(
;B[ci]
)
)
(
;W[ci];B[cr]
;C[*** White success! Now the game is close.]W[fi]
)
(
;C[*** Local tesuji, as has been pointed out.]W[er]
;B[cr];W[bs];B[dq];W[cp];B[eq];W[ep];B[fr];W[cs];B[es];W[ds];B[er]
;C[*** Bingo!]W[gr]
)
)
(
;C[*** Big.]B[ci]
)
)
(
;C[*** Trouble. Right here in River City.]W[cj]
;B[ek];W[ej]
;C[*** Does not work.]B[fl]
;W[co];B[bo]
;C[*** Bingo!]W[cl]
)
)
(
;C[*** Secures the left side, even though its skirt is open. After White secures his running group, Black can invad the top side.]B[di]
)
)
(
;C[*** Maybe White's best chance to catch up.]W[di]
)
)
(
;C[*** Good shape. Puts pressure on White.]B[iq]
)
)
(
;W[ek]
;C[*** Better, eh?]B[dj]
)
)
(
;C[*** Tesuji. One to remember. Very useful.]W[fn]
)
)
(
;C[*** You guessed it!]B[el]
)
)
(
;C[*** Still looks like double sente.]B[el]
)
)
(
;C[*** For example.]W[ph]
)
)
(
;C[*** Still looks like double sente.]B[el]
)
)
(
;W[pn]
;C[*** Double atari.]B[np]
;W[oq];B[mq]
;C[*** Not happy for White. But . . . .]W[mr]
;C[*** Black cannot simply grab White 44.]B[ro]
;W[om]
;C[*** Not an easy fight.]B[nn]
)
)
(
;C[*** Takes away a liberty of the three Black stones, thanks to White 40. ]W[ip]
;B[io];W[hp];B[gp]
;C[*** Now Black has weaknesses.]W[iq]
)
)
(
;B[oo];W[qp];B[po];W[rp]
;C[*** Maybe better to sacrifice the corner for thickness and sente.]B[qo]
)
)
(
;C[*** Pretty much double sente now.]B[el]
)
)
(
;C[*** This is good threatening to push through. A Black play here would make strong shape, so this is also the shape play.]W[iq]
)
)
(
;W[lp]
(
;B[lo]
;C[*** White has room, Black has weaknesses.]W[mp]
)
(
;B[lq];W[mq]
)
)
)
(
;C[*** This should end up sente for White. See continuation.]W[el]
;B[dk];W[jo]
)
)
(
;C[*** Probably better.]W[qf]
)
(
;C[*** Another AI style play, eh?]W[qc]
)
)
(
;B[dk]
)
)
(
;C[*** Tenuki is fine.]B[cn]
)
(
;C[*** A long extension is also fine, as has been known for hundreds of years. It's thin, but Black has the 3-3 is reserve. ]B[cj]
)
)
(
;C[*** Curiously, in the pre-bot era, this play had good stats. ]B[dp]
)
)
;B[pd];W[dc]
(
;C[*** See variation.]B[pp]
;W[dp];B[ce]
;C[*** AI style.]W[fd]
(
;C[*** Too close, as you late notice. See variations.]B[dg]
;W[cd]
;C[Now D13 is misplaced.]B[de]
;C[bit slow. White afraid of weakness at E17.]W[bd]
;LB[ci:C][cj:A][ck:D][fq:B]C[White couldn't decide on A, C or D for a pincer, so went with the easier variation.
*** A feels right to me, as Black has no happy pincer against it.]B[cn]
;C[*** Another AI style play.]W[fq]
(
;C[*** This slide is out of favor. See variation.]B[bp]
(
;C[white doesn't finish joseki. In retrospect, a mistake.
*** Maybe so. Especially as White is strong in the top left. The saying is, Don't play close to strong stones. See variations.]W[nc]
;B[qf]
;C[*** Looks tempting, but too close to strength.]W[jd]
;B[hq];W[cq];B[bq]
;C[white didn't mind giving black some territory here, because he was undercut at B15 anyway.]W[dn]
;B[cm]
;C[very aggressive. But Leela also recommends this.
*** Good play, utilizing the strength that White has built up towards the left.]W[jq]
;B[ho]
;C[white could link up underneath, so doesn't have to be afraid yet.
*** Leaning attack.]W[dm]
;B[dl]
(
;C[this is probably overplay, though.White is thinking\: you don't learn from your games if you play timid.But there are limits, of course.
*** White should continue to lean. The left side is big now. See variation.]W[hm]
;B[jp];W[kq];B[kp]
(
;C[*** Timid. Hane at the head of two stones. See variation.]W[lq]
;C[black felt he was pushing from behind.White felt he was being pushed into a dangerous situation. Both players didn't really like the situation, haha!
*** Yeah, pushing from behind is not good. And White missed his opportunity on the previous play.]B[lp]
;LB[mp:A]C[A would be a good answer for black.
*** Maybe. Anyway, it's the shape play. A White play there would be quite strong.]W[nq]
;C[this is okay, too.]B[no]
(
;C[*** See variation.]W[pr]
(
;C[*** At this point the corner is small. See variation.]B[qr]
;W[pq];B[qq]
;C[black helped white become strong, but in return got a good corner.]W[op]
(
;C[*** See variation.]B[po]
;C[*** Strengthens Black needlessly. Not good.]W[mp]
;B[mo]
(
;C[*** Because of Black's strength, thanks to White 40, this is not good, either.
See variation.]W[oo]
;LB[pn:A]C[white, however, is not dissatisfied with the result because the wall has some holes in it. In fact, cutting at A is a good move, one that Leela suggests. One that white thought about for a minute, too.
*** Black threatens double atari, thanks to White 40. And yes, White should probably cut at A. Here is where the saying, if your are not going to cut, don't push through, would apply.
]B[on]
(
;C[*** Not so good, as it turns out.]W[ql]
;C[*** Double atari. Natch!]B[np]
;W[oq];B[mq];W[mr]
;C[*** Better for Black than if White had cut.]B[qn]
;W[pm];B[pn];W[qi]
(
;C[*** See variation.]B[oi]
(
;C[*** Passive. The general rule is to cut a sector line. See variation.]W[rm]
(
;C[*** See variation.]B[qj]
;C[probably a mistake? White thought S10 would be too passive. But this makes black stronger.]W[pj]
;B[pi];W[rj];B[qh];W[ri]
(
;C[*** See variation.]B[oj]
;W[pk]
;C[*** Strengthens White needlessly.]B[oc]
;W[nd]
;C[*** Strengthens White needlessly.]B[eo]
;W[do];B[fm];W[el];B[dk]
(
;C[*** See variation.]W[em]
;C[*** Black does not have to save Black 69. It has done its job.]B[fn]
(
;LB[gl:A]C[elephant's eye, but white thought it'd help him get out.
*** Does not break a sector line, and is not sente. See variation.]W[fk]
(
;C[*** Chasing from behind. See variation.]B[gl]
;W[gk];B[hl]
(
;C[*** Maybe objectively correct. But see variation.]W[ei]
(
;C[*** See variation.]B[fh]
(
;C[here comes a big reading mistake for white. White knows about the "trick", the move at D2. But, he has read out that it doesn't work in this case, because of the D4 string of stones and liberties. However...
*** This is not the hot spot now. See variation.
]W[br]
(
;C[*** Good fighting spirit. But see variation.]B[dr]
(
;C[*** See variations.]W[cr]
(
;C[... it becomes obvious very painfully that it does work. Major loss for white and an emotional slap in the face.
*** See variation.]B[eq]
;W[ep];B[fr]
(
;C[*** See variation.]W[fo]
(
;C[*** Not good. Who cares about one stone?
See variation.]B[en]
(
;C[*** See variation.]W[gi]
(
;C[*** See variation.]B[gh]
;C[white goes aggressive, but because of that mistake below, he is not reading properly and the concentration has slipped.Still, this is also Leela's move, so the instinct is good!
*** Banzai1]W[ci]
;B[fi]
(
;C[the follow-up isn't.
*** Bad shape. Connecting stones that are already connected. See variation.]W[ek]
;C[*** Good advantage Black!
End of comments.]B[dj]
;C[ ]W[di];B[ej];W[fj];B[bk];W[hk]
;LB[il:A]C[cut at A is big.]B[ik]
;W[hi]
;LB[ec:B][ff:A]C[White could respond at A, that would be strong. But because of the weakness at B...]B[hd]
;C[...he plays chicken Go. Note that he is also still mentally slapped from the reading error below\;]W[fc]
;B[ic]
;C[black noticed this move is slow, but in this case it's a whole lot better than at F17, because otherwise the white stones could become very weak.]W[jc]
;B[hf]
;C[slow. A running thing in this game is the D13 stone(s) that could've been made weak/attacked a few times, but white never did so.]W[jf]
;B[lc];W[ld]
;C[slight mistake for black. He needed this move at M18 for maximum damage.]B[nb]
;W[mb];B[ob];W[lb];B[be];W[ae];B[af];W[ad];B[bg]
;C[very slow, doesn't accomplish much. It's obvious now that black has this game. White is losing the will and the opportunities to fight.]W[ok]
;B[nl]
;C[monkey jump or keima would've been better, probably.]W[rn]
;B[ro]
;LB[il:A]C[white's last attempt. Eyeing the cut at A.Unfortunately for white, all he does is ask black to fix it. He needs to cut there immediately. The reason he doesn't is because he is afraid for this white group, it can still be reduced to one eye.]W[ij]
;B[il];W[jj];B[kk]
;C[now the white group is definitely safe, but black got a big territory in the middle.]W[hh]
;B[gf];W[kj];B[lk];W[ir];B[gq];W[qs];B[rs];W[ps];B[rq];W[sf];B[rg];W[sg];B[sh];W[rh];B[se];W[si];B[rf];W[sh];B[re];W[nf]
;C[from here, the game is done for white.There is some fun endgame in the bottom (for white), but it is all moot.]B[mh]
;W[iq];B[ip];W[gb];B[go];W[pg];B[ph];W[ib];B[ig];W[jh];B[jg];W[kf];B[kg];W[ar];B[cp];W[dq];B[fp];W[co];B[bo];W[jk];B[jl];W[om];B[nm];W[nk];B[og];W[of];B[pf];W[ng];B[oh];W[ee];B[ef];W[mj];B[mk];W[nj];B[lj];W[lg];B[mg];W[mf];B[ih];W[ii];B[kh];W[hc];B[id];W[if];B[hg];W[gd];B[he];W[hr];B[aq];W[nh];B[lh];W[ni];B[qg];W[od];B[pe];W[gr];B[dd];W[cc];B[ed];W[fe];B[ec];W[eb];B[lf];W[le];B[sn];W[sm];B[so];W[na];B[pb];W[ds];B[er];W[fs];B[fq];W[es];B[oa];W[ma];B[qm];W[rl];B[oe];W[ne];B[ie];W[je];B[ff];W[ol];B[ji];W[mp];B[ki];W[mq];B[lg];W[mi];B[li];W[tt];B[tt]
)
(
;W[ej];B[ek];W[bk];B[bl];W[ck];B[cl];W[fl];B[fj]
(
;C[*** Difficult fight, but White looks like he has the advantage.
See variation.]W[bg]
)
(
;W[gn];B[gm]
;C[*** If need be, this ladder works.]W[il]
)
)
)
(
;B[ci]
)
)
(
;W[ci];B[bj];W[cj];B[bk]
;C[*** White has a good advantage.]W[fi]
)
)
(
;C[*** Advantage Black.]B[ci]
)
)
(
;C[*** Banzai!]W[ci]
;B[ek];W[fl];B[fi];W[ej];B[fj];W[bk];B[bl];W[ck];B[cl]
;C[*** Black may still have the edge, but White has good chances.]W[bg]
)
)
(
;B[ci]
)
)
(
;W[ci];B[cr]
;C[*** White success! Now the game is close.]W[fi]
)
(
;C[*** Local tesuji, as has been pointed out.]W[er]
;B[cr];W[bs];B[dq];W[cp];B[eq];W[ep];B[fr];W[cs];B[es];W[ds];B[er]
;C[*** Bingo!]W[gr]
)
)
(
;C[*** Big.]B[ci]
)
)
(
;C[*** Trouble. Right here in River City.]W[cj]
;B[ek];W[ej]
;C[*** Does not work.]B[fl]
;W[co];B[bo]
;C[*** Bingo!]W[cl]
)
)
(
;C[*** Secures the left side, even though its skirt is open. After White secures his running group, Black can invad the top side.]B[di]
)
)
(
;C[*** Maybe White's best chance to catch up.]W[di]
)
)
(
;C[*** Good shape. Puts pressure on White.]B[iq]
)
)
(
;W[ek]
;C[*** Better, eh?]B[dj]
)
)
(
;C[*** Tesuji. One to remember. Very useful.]W[fn]
)
)
(
;C[*** You guessed it!]B[el]
)
)
(
;C[*** Still looks like double sente.]B[el]
)
)
(
;C[*** For example.]W[ph]
)
)
(
;C[*** Still looks like double sente.]B[el]
)
)
(
;W[pn]
;C[*** Double atari.]B[np]
;W[oq];B[mq]
;C[*** Not happy for White. But . . . .]W[mr]
;C[*** Black cannot simply grab White 44.]B[ro]
;W[om]
;C[*** Not an easy fight.]B[nn]
)
)
(
;C[*** Takes away a liberty of the three Black stones, thanks to White 40. ]W[ip]
;B[io];W[hp];B[gp]
;C[*** Now Black has weaknesses.]W[iq]
)
)
(
;B[oo];W[qp];B[po];W[rp]
;C[*** Maybe better to sacrifice the corner for thickness and sente.]B[qo]
)
)
(
;C[*** Pretty much double sente now.]B[el]
)
)
(
;C[*** This is good threatening to push through. A Black play here would make strong shape, so this is also the shape play.]W[iq]
)
)
(
;W[lp]
(
;B[lo]
;C[*** White has room, Black has weaknesses.]W[mp]
)
(
;B[lq];W[mq]
)
)
)
(
;C[*** This should end up sente for White. See continuation.]W[el]
;B[dk];W[jo]
)
)
(
;C[*** Probably better.]W[qf]
)
(
;C[*** Another AI style play, eh?]W[qc]
)
)
(
;B[dk]
)
)
(
;C[*** Tenuki is fine.]B[cn]
)
(
;C[*** A long extension is also fine, as has been known for hundreds of years. It's thin, but Black has the 3-3 is reserve. ]B[cj]
)
)
(
;C[*** Curiously, in the pre-bot era, this play had good stats. ]B[dp]
)
)
which should have been at N6 (we noticed it this morning)
. Leelazero says that C5 would have been a better local play. This move separates the white C8 group from the corner group. White can also disconnect Black but C8 is not alive, so that's a fight...
and 
, followed by the no suji, 
