(;GM[1]FF[4]SZ[19]AP[SmartGo:3.1.3]CA[utf-8]
PW[AlphaGoZero]
PB[AlphaGoLee]
KM[7.5]
RE[W+R]ZT[5]MU[0];B[dd];W[pd];B[dq];W[pp];B[nq]
C[With  5, it looks like AGLee might be trying to play the Kobayashi opening. ]
(;W[oq]
C[Kicking at 6 is generally considered a bad move that strengthens Black's group (see var). ]
;B[np];W[pn]LB[oq:A][np:B][ck:C]
C[When White has exchanged A for Black B, the value of Black's next move on the lower side has increased. While this exchange is generally considered to be bad for White, it does have the effect of inducing Black to play towards the lower side, because of the increased value. It could be that Zero doesn't like it when Black plays the Chinese opening at C, and is trying to avoid that opening. ]
;B[jp]
(;W[co]LB[lr:A][do:B]
C[This is the opening for Zero as White in the AGZero-AGLee set, up to Black 9. White 10 was Zero's favorite move, played in 6/10 games. Zero also played at A and B instead of White 10, in 2 games each. The most likely human move is not any of these (see var). ]
;B[dl]LB[dk:A][fp:B][ck:C]
C[With Black 11 in this board position, AGLee played at A and B once each, and at C in 3 games.]
;W[fo]
C[White 12 seems to fit this position, trying to reduce the potential of Black's position on the lower side from the fifth line. ]
;B[cp];W[do];B[fq]LB[cp:A]
C[Kicking once at A and then jumping at 15 has become the most popular variation of this joseki in recent years of human play. In the AGLee version, I believe that AlphaGo was still at a stage where it was imitating human play, and it's moves look natural to me. ]
(;W[gm]LB[gq:A][cj:B]
C[White 16 makes miai of A and B. If White had immediately invaded on the left, Black would respond strongly and there would have been a fight (see var). ]
(;B[qf]
C[Black 17 might have been meant to be a ladder breaking move for the coming fight in the lower left. I would have expected Black to play on the lower or left side (see 2 vars). ]
;W[gq];B[fp]
(;W[dp]LB[gp:A][qf:B]
C[If White covers at A with 20, the Black stone at B makes it possible for Black to cut (see var). ]
(;B[gp]LB[gq:A][dp:B]
C[Since White started this fight with the White A, Black can push through at 21 and sacrifice the corner to get an even local result. If Black had connected in the corner instead, then White's stone at B would have changed the outside fight (see var). 
]
;W[cq];B[cr];W[bp]
(;B[ql]
C[With Black 25, the double kakari was more important (see var). ];W[cc]
LB[di:A][nc:B]
C[Zero's famous 3-3 invasion liked by both the 20 block and the 40 block versions. This is a position in which I would be looking at moves such as White A or B. ]
;B[cd];W[dc]
(;B[ec]
C[Black 29 was the most common joseki variation before AGKeJie, but both AGKeJie and AGZero do not play it very much. In this case, I would say that the knights move should work well for Black with this board position (see var). ]
;W[eb];B[fc];W[fb];B[gc];W[gb];B[hc];W[di]LB[cc:A][ec:B]
C[When white has invaded at A, and also gets the big point at 36, this already looks good for White. Black's wall is not alive, and it will be difficult for Black to use this wall as thickness. White got the territory as well as potential to attack. This is my reason for thinking that Black B was the wrong choice of joseki for this position. ]
(;B[qq]
C[With Black 37, the left side is also very important, and surely is what an AI would label as a hot spot (see var). ]
;W[nr]LB[oq:A]
C[White 38 starts what might be called a Zero-Lee joseki, and is seen only in this 20-block version of Zero. This defence of the LR corner is a part of the story behind the kick at A. While conventional wisdom indicates that the kick at A weakens White's corner when Black invades, Zero shows that it has a way to handle that problem. ]
(;B[mr]
C[With 39, Black can also scoop out the corner, a variation that AGLee never played (see var). ]
;W[ro];B[or];W[pr];B[pq];W[op];B[ns];W[qr]TR[nr]
C[While sacrificing the marked stone was painful, the lower side was probably going to be Black's territory anyway, so the damage is relatively minor. ]
;B[nc];W[nd];B[md];W[ne]
(;B[oc]
C[Black 51 has become the less common move in this joseki, but in this board position it is good because it allows Black to keep sente and add a stone to the right side, and I agree with Black's choice (see var). ]
;W[pc]
(;B[re]
C[Black 53 is an unusual move, but has been played in human pro games. Compared to the usual move (see var), Black 53 has a stronger impact on the eyeshape of both White's corner group and the Black group on the right side. ]
;W[gj]
C[White 54 was an important point, and White now can expect to make a significant amount of territory on the left. ]
(;B[pg];W[rd]
(;B[rc]
C[Black cannot push through and cut with 57 (see var). ];W[pe];B[ng];W[qe]
(;B[rf]
C[With 61, Black should have connected underneath (see var). ];W[sd]
(;B[me]
C[Black 63 was Black's last chance to reduce White's territory on the left side (see var). ]
;W[ch]
C[White 64 is the final big point, and White now has established a solid lead in territory. ]
(;B[go]
C[Black has no way to attack White in the UR corner (see var). ];W[fn];B[fh]
;W[fi];B[gi];W[fj];B[hi];W[eh];B[fg];W[oh];B[og];W[ol];B[ok];W[nk];B[pk]
;W[mf];B[nf];W[nj];B[nl];W[ml];B[nm];W[kj];B[mi];W[jl];B[lj];W[ki];B[lk]
;W[li];B[mj];W[mh];B[nh];W[pb]
(;B[kc]
C[Black cannot win by attacking in the center (see var). ];W[ll];B[kk];W[jk]
;B[ni];W[lc];B[mc];W[jc];B[jd];W[kd];B[kb];W[jg];B[hm];W[hg];B[ih];W[ij]
C[White has successfully reduced Black's potential in the center, and Zero has a safe lead. ]
;B[gl];W[hl];B[hk];W[il];B[hj];W[gk];B[fl];W[ef];B[ff];W[ee];B[bd];W[bc]
;B[fe];W[hn];B[jh];W[cf];B[ed];W[lf];B[ke];W[je];B[id];W[ig];B[hh];W[nn]
;B[bq];W[bn];B[bi];W[bh];B[ac];W[ab];B[ad];W[cb];B[bk];W[cj];B[rb];W[ob]
;B[ep];W[eo];B[bj];W[ek];B[el];W[dk];B[ck];W[bm];B[bb];W[ba];B[mm];W[jo]
;B[ho];W[in];B[io];W[jn];B[ci];W[dj];B[eg];W[dg];B[bg];W[bf];B[af];W[ah]
;B[ag];W[cl];B[ei];W[dh];B[bl];W[cm];B[fk];W[ej];B[rq];W[rr];B[df];W[dr]
;B[cp];W[kp];B[kq];W[cq];B[ji];W[jj];B[cp];W[jq];B[ip];W[cq];B[eq];W[br]
;B[cp];W[lq];B[kr];W[cq];B[sq];W[qp];B[cp];W[lo];B[lp];W[cq];B[ps];W[sr]
;B[cp];W[nb];B[mb];W[cq];B[qs];W[rp];B[cp];W[gh];B[gg];W[cq];B[rs];W[sp]
;B[cp];W[mp];B[cq];W[lr];B[ls];W[lm];B[ce];W[ai];B[aj];W[al];B[gn];W[jr]
;B[ks];W[im];B[mq];W[kf];B[fm];W[le];B[oe];W[od];B[ld];W[om];B[oj];W[ma]
;B[ke];W[of];B[hm];W[lp];B[mk];W[gm];B[kh];W[lh];B[hm];W[no];B[na];W[ra]
;B[se];W[qb];B[sc];W[qd])
(;B[kk];W[jk];B[jj];W[ij];B[ji];W[ii];B[jh];W[ih];B[jg];W[ig];B[jf];W[if]
;B[je];W[mc]
C[Capturing White's few stones in the center is not big enough for Black, and White wins.  ]
))
(;B[qc];W[rb];B[qb];W[pb]LB[qc:A][rb:B]
C[If Black plays at A, White B is the tesuji to stop Black from connecting on the upper side. ]
))
(;B[ci];W[ch];B[bh];W[cj];B[bi];W[dj];B[bj];W[bk];B[dh];W[eh];B[cg];W[cl]
;B[me]LB[ci:A][me:B]
C[If Black attaches at A, White cannot capture the entire left side. After reducing the left, Black can return to the right with B. This is better for Black than the game sequence. ]
))
(;B[sd];W[rf];B[qd];W[rg];B[qc];W[pb];B[qb]LB[sd:A][rf:B]
C[If Black connects underneath with A, and White cuts at B, Black can live in the corner with this sequence. White has two weak groups to deal with, and Black still has a chance to win. ]
))
(;B[od];W[oe];B[pe];W[mc];B[mb];W[lc];B[lb];W[kc];B[pb];W[qb];B[ob];W[qd]
;B[kb];W[le]LB[od:A][mc:B]
C[If Black pushes through to cut with A, it puts Black's group on the upper side in damezumari, and White can counter with the cut at B. The corner is alive, and White has a good position on the outside. ]
))
(;B[me];W[mf];B[lf];W[nf];B[lg];W[mc];B[lc];W[mb];B[lb];W[qh]LB[me:A][qh:B]
C[If Black pushes at A, White can strengthen the corner group and then invade at B. This is good for White. ]
))
(;B[pg];W[qe];B[re];W[pf];B[rf];W[rd]LB[qj:A][gj:B]
C[This is the usual joseki sequence. White is alive in the corner, and Black's extension on the right side is too wide, leaving a strong invasion for White at A. A and B have become miai. ]
))
(;B[pc];W[oc];B[ob];W[od];B[mb];W[qc];B[pb];W[me];B[ld];W[qi]LB[pc:A][oc:B]
C[If Black attaches at A, White will wedge at B and play this joseki to get sente and invade on the right side. This is good for White. ]
))
(;B[qo];W[po];B[rn];W[mq]LB[qo:A][mq:B]
C[When Black peeps at A, Black can take the corner territory, and White can live on the lower side while reducing Black's side territory. Locally this is not bad for White, and while Black was setting this up, White played some important points on the left side. In this board position, this is good for White. ]
))
(;B[fl];W[ee];B[ed];W[gi];B[gl];W[go];B[hp]LB[fl:A]
C[Escaping with A is a big move. This is how I might play with Black, keeping the balance of territory close. ]
))
(;B[fc];W[ec];B[ed];W[fb];B[di]LB[fc:A][di:B]
C[Black should play the keima at A, which is more flexible, as Black can play away to take the big point at B with relatively little damage in the UL corner. I would say the game is still close to even. ]
))
(;B[nc];W[nd];B[md];W[ne];B[pc];W[qc];B[oc];W[qd];B[qi]LB[nc:A][qq:B]
C[When Black plays the kakari at A, this sequence is the most common variation. Black is threatening to invade at B, and White is not yet completely alive in the UR corner. I would want to play as Black with this position. ]
))
(;B[cq];W[gp];B[go];W[ho];B[gn];W[fr]TR[dp]
C[Making use of the marked stone, White can play this hane as a forcing move, and Black has bad shape (2 vars for Black's move). ]
(;B[eq];W[hn];B[fn];W[em];B[en];W[dm];B[fm];W[fl];B[gl];W[hm];B[el];W[fk]
;B[cm];W[dn];B[eo];W[cl];B[ej];W[ck];B[dj];W[bm];B[cj];W[hk]
C[White is alive on the side, and this looks good for White. ])
(;B[er];W[hn];B[fn];W[fm];B[en];W[eq];B[ep];W[eo];B[eq];W[dm]LB[er:A][eq:B]
C[If Black covers at A, White can use the squeeze with B to capture Black's cutting stones in the center. ]
)))
(;W[gp];B[go];W[ho];B[gn]TR[qf]
C[This would be a ladder if not for the marked Black stone. ];W[hn];B[fn]
;W[fm];B[en];W[em];B[dn];W[dm];B[cn];W[cm];B[bn];W[ip]TR[co][fo]
C[White can sacrifice the marked stones to build a wall on the outside, and this looks good enough for White to me. ]
))
(;B[hp];W[bp];B[bq];W[dp];B[cq];W[cj];B[ek];W[bl]LB[hp:A][cj:B]
C[If Black protects the lower side at A, White can pincer at B and connect underneath. White has a slight advantage. ]
)
(;B[di];W[gq];B[gr];W[fp];B[er];W[fc]LB[di:A][gq:B][fc:C]
C[I would say that Black A seems to be the most natural move. White will be able to force with B, and then will switch to the opening point at C. This is about even. ]
))
(;W[cj];B[cm]
(;W[fl];B[ek];W[cf];B[fk];W[hl];B[ch]LB[cj:A][cm:B]
C[If White pincers at A, Black will cut White off with B and fight strongly. In this running fight, White has weak groups on both sides, and Black has potential to attack.]
)
(;W[cg])))
(;W[cn];B[cp];W[ck];B[ci];W[en];B[dm];W[dn];B[gp];W[ek]TR[np][oq]LB[cn:A][dn:B]
C[Apart from the marked exchange, this is the same as the Kobayashi opening, and White's most popular move is the kakari at A. The high kakari at B has also become popular in recent years. Different kakaris have been less successful, and have become scarce in human play. ]
))
(;W[qn]LB[qn:A][jp:B][kp:C][ck:D]
C[If White answers at A, Black could play at B or C for the Kobayashi Fuseki, or play at D for the Chinese Fuseki. ]
))

