(;FF[4]
CA[UTF-8]
GM[1]
GN[KataGo 7 komi self-play - game 120]
PC[https://online-go.com/review/1049006]
PB[KataGo]
PW[KataGo]
BR[9p]
WR[9p]
OT[Error: time control missing]
RE[?]
SZ[19]
KM[7]
RU[NZ]

(;B[qd]
;W[dp]
;B[cd]
;W[pq]
;B[fd]
;W[oc]
(;B[qo]C[This is fairly normal.

[All comments on this game by Tang Jie (CHN 5d), except bracketed comments by Maharani.\]]
;W[pe]
(;B[qe]
;W[pf]
(;B[rg]
;W[qp]
;B[po]
(;W[np]C[And then we have the high position.]
(;B[ph]C[This makes sense. Defending here is fine.]
(;W[lc]C[White defends.]
;B[cq]C[Black jumps into the corner; it's pretty big.]
;W[cp]
;B[dq]
;W[fq]
;B[eq]
;W[ep]TR[fp]C[I see white's not opting to do any shenanigans with F4 instead.]
;B[fr]
;W[on]C[This is really interesting.]
;B[pm]TR[on]C[White's basically forcing black to fix.]
;W[bq]
(;B[gq]
;W[fp]
;B[hr]TR[pm]TR[on]C[Black deflects to the side.
White played P6, forcing black to connect at Q7; and now black's saying, I can destroy the bottom area.]
;W[cr]
;B[dr]
;W[ds]TR[cr]C[White gets these free moves...]
;B[er]
;W[cj]C[... and extends to the side.
So far, I think the game is not super complicated. The ideas of what each player wants are pretty clear, at least in the opening.]
;B[no]C[Black is going to cut through!]
(;W[ro]C[White plays the hane first.]
(;B[oq]
;W[op]C[White blocks.]
(;B[oo]C[Black connects first.]
(;W[rn]
(;B[pp]
;W[qq]
;B[mp]TR[pp]TR[qq]C[Oh, we get the squeeze; okay, that makes sense.]
;W[nq]
;B[mq]
;W[or]
(;B[dj]C[Black attaches.]
;W[ck]
;B[nr]
;W[oq]TR[dj]TR[ck]C[Okay, black made the one exchange.]
;B[qm]C[Black protects...]
;W[mo]C[... white cuts anyways...]
;B[di]C[... and then black plays away.]
;W[ch]
;B[lo]
;W[mn]
;B[ml]C[Black plays a really good move here. He is just threatening to cut while making some outside forcing shapes.]
(;W[dh]
;B[ln]SQ[di]TR[cj]SQ[dj]TR[ej]TR[mn]TR[on]TR[mo]C[Black takes the P6 stones so that there's little to no aji now.
Black has already reduced the left side, so there's no one-space jump for white at E10. Effectively, black's D10 stones are really light, so he doesn't need to concern himself with them.
Now the last big area on the board is the untouched upper left corner.]
;W[dc]C[White gets in there.]
;B[dd]C[There are several iterations of this joseki.]
(;W[ec]
;B[cc]C[Black just connects.]
;W[gc]C[[See variation at move 1.\]]
;B[kd]TR[aa]SQ[ea]SQ[fa]SQ[ga]MA[ha]MA[ia]MA[ja]MA[ka]SQ[ma]SQ[na]MA[pa]MA[qa]MA[ra]MA[sa]TR[ab]TR[bb]MA[hb]MA[ib]MA[jb]MA[kb]SQ[mb]SQ[nb]MA[pb]MA[qb]MA[rb]MA[sb]TR[ac]TR[bc]MA[pc]MA[qc]MA[rc]MA[sc]TR[ad]TR[bd]TR[rd]TR[sd]TR[re]TR[se]TR[sf]TR[sg]TR[rh]TR[sh]SQ[ai]SQ[aj]SQ[bj]MA[pj]MA[qj]MA[rj]MA[sj]SQ[ak]SQ[bk]MA[pk]MA[qk]MA[rk]MA[sk]SQ[al]SQ[bl]MA[cl]MA[dl]MA[el]MA[fl]MA[pl]MA[ql]MA[rl]MA[sl]SQ[am]SQ[bm]MA[cm]MA[dm]MA[em]MA[fm]TR[mm]TR[nm]TR[om]SQ[an]SQ[bn]MA[cn]MA[dn]MA[en]MA[fn]TR[mn]TR[nn]TR[on]SQ[ao]SQ[bo]MA[co]MA[do]MA[eo]MA[fo]TR[mo]TR[kp]TR[lp]SQ[rp]SQ[sp]TR[iq]TR[jq]TR[kq]SQ[rq]SQ[sq]MA[ar]MA[br]TR[gr]TR[ir]TR[jr]TR[kr]MA[mr]MA[nr]SQ[pr]SQ[qr]SQ[rr]SQ[sr]MA[as]MA[bs]MA[cs]TR[gs]SQ[ps]SQ[qs]SQ[rs]SQ[ss]C[Instead of continuing locally, black shoulder hits. He has a heavy emphasis on keeping white low.
In terms of territory, we could count 35 points for black and around 32 points on the board for white. There are around 56 points' worth of undecided areas, marked X.
So the game is still roughly even.]
;W[gd]
;B[ld]
;W[kc]
;B[jd]
;W[jc]
;B[mc]C[The hane makes sense.]
;W[mb]
;B[gn]TR[fd]TR[jd]TR[kd]TR[ld]SQ[fh]SQ[gh]TR[ph]TR[di]SQ[fi]SQ[gi]TR[dj]TR[ml]TR[ln]TR[lo]C[The tenuki is wild.
But we can finally see black's masterplan here: He is building the center. F16 doesn't really play much of a part in it, but it could definitely help if black gets another stone in one of the spots marked with squares; then we kind of see a really large center.
White doesn't have to jump in immediately; but I imagine within the next four or five moves, if nothing major happens, white's going to definitely jump in, or try something.]
;W[fm]TR[dj]TR[ek]TR[el]TR[gn]C[So, immediately. White plays on the sector line.]
;B[gm]C[Black continues like this.]
;W[fl]C[White gets to continue.]
;B[gl]
(;W[gk]C[White hanes.]
;B[hk]C[Black retaliates with a hane.]
;W[hj]
;B[ij]
;W[hi]
;B[fk]
;W[gj]
(;B[ii]
;W[ih]
;B[jh]C[Black hanes.]
;W[ik]
;B[hl]
;W[ig]C[White extends.]
;B[fn]C[Black turns.]
(;W[jg]TR[mb]TR[jc]TR[kc]TR[lc]TR[mc]TR[jd]TR[kd]TR[ld]C[White tenukis, ohh!
After white gets this turn, there's actually no more value in the marked area.]
;B[nb]
(;W[md]
;B[nc]
;W[nd]TR[nb]TR[mc]TR[nc]C[White is attacking the black stones.]
;B[ob]C[I can't say I completely understand this, but essentially, I think black is switching to territory. White's already broken the center; there are no more points there.]
(;W[en]TR[jj]C[White blocks. Now she has the K10 ladder.]
(;B[od]C[Black plays here immediately.
The players have made a trade. What happened is, black is getting a lot of points; white has weaknesses, black has weaknesses.]
;W[be]SQ[hb]TR[dc]TR[ec]TR[gc]LB[ic:A]TR[jc]TR[kc]TR[lc]SQ[oc]LB[cd:B]TR[gd]SQ[md]LB[nd:D]SQ[pe]SQ[pf]TR[ig]TR[jg]LB[lg:C]TR[ch]TR[dh]TR[ih]LB[hi:E]TR[cj]TR[gj]TR[hj]TR[ck]TR[gk]TR[fl]TR[fm]C[White now attacks the corner with her very thick group.
There are some issues with the H18 double-hane.
I think the big highlight of this game, and something that a lot of people can take away from it, is how we handle this area. White instigates here; "I'm going to kill the corner."
The center is still large and open. The top right isn't alive. There's aji at H18. There is a lot of value at A, B, C, and D; and then there's a lot of aji at the E area.
Everything was settled in the bottom right side of the board, and it kind of just exploded when both players became kind of unyielding with how the center should be played.]
(;B[ci]C[Black pushes first! Hmm. He asks some forcing moves.]
(;W[bi]C[White needs to protect now, essentially.]
(;B[lg]C[Okay, so black plays a ladder-breaker. It's really interesting that he didn't add moves on the top side, completely leaving the area.]
(;W[lh]SQ[oc]SQ[md]SQ[nd]SQ[pe]SQ[pf]TR[jj]C[White attaches, essentially making the ladder work again. It does mean that white is slowly giving up the square stones in order to keep center supremacy.]
(;B[ge]C[Black plays the hane.]
;W[ed]C[White pushes, which is interesting...]
;B[id]C[... and then black extends, looking to make it complicated.]
(;W[ee]C[White just takes the points.]
;B[jk]C[And then black saves the center.]
;W[he]
;B[hd]
;W[gf]
;B[hb]TR[mb]TR[jc]TR[kc]TR[lc]C[So now with a small trade here, black is going to capture the marked stones in a very more optimal way.]
;W[gb]
;B[db]C[And then black is playing an asking move? I mean, this one just makes sense.]
;W[bb]
(;B[ib]C[So black just has to fix on the top side.]
;W[kh]
;B[cb]C[But black plays it anyways!]
(;W[eb]C[White needs to answer somehow, and blocking is perfectly fine.]
;B[bh]
;W[bg]SQ[cb]SQ[db]MA[mb]SQ[cc]MA[jc]MA[kc]MA[lc]SQ[cd]SQ[dd]TR[gf]TR[hf]TR[if]TR[jf]TR[kf]TR[lf]TR[mf]TR[nf]TR[eg]TR[fg]TR[ng]TR[eh]TR[oh]TR[ei]TR[oi]TR[ej]TR[nj]TR[oj]TR[fk]TR[gk]TR[hk]TR[ik]TR[nk]TR[il]TR[jl]TR[kl]TR[ll]TR[ml]C[So essentially, this whole game has revolved around the center area and the top. "Does black live in the top left corner or capture the X stones on the side?"
As of right now, the top has been resolved. White has taken the corner; black has taken the top side. White has intruded into the center, but black has kept some remaining points.
White also has a lot of points, too, and black needs to break into the left side, as well.]
;B[fj]C[So black pushes...]
;W[dk]SQ[aa]SQ[ba]SQ[ca]SQ[da]TR[ja]TR[ka]TR[la]TR[ma]TR[na]TR[oa]TR[pa]TR[qa]TR[ra]TR[sa]SQ[ab]SQ[cb]SQ[db]TR[jb]TR[kb]TR[lb]TR[mb]TR[pb]TR[qb]TR[rb]TR[sb]SQ[ac]SQ[bc]SQ[cc]SQ[fc]TR[jc]TR[kc]TR[lc]TR[oc]TR[pc]TR[qc]TR[rc]TR[sc]SQ[ad]SQ[bd]SQ[cd]SQ[dd]SQ[fd]TR[rd]TR[sd]SQ[ae]SQ[ce]SQ[de]SQ[fe]SQ[ge]TR[re]TR[se]SQ[af]SQ[bf]SQ[cf]SQ[df]SQ[ef]SQ[ff]SQ[ag]SQ[cg]SQ[dg]SQ[eg]SQ[fg]SQ[gg]SQ[hg]SQ[ah]SQ[bh]SQ[eh]SQ[fh]SQ[gh]SQ[hh]SQ[ai]SQ[ci]SQ[di]SQ[ei]SQ[fi]SQ[gi]SQ[aj]SQ[bj]SQ[dj]SQ[ej]SQ[fj]SQ[ak]SQ[bk]SQ[ek]SQ[fk]TR[ik]SQ[al]SQ[bl]SQ[cl]SQ[dl]SQ[el]TR[il]TR[jl]TR[kl]TR[ll]SQ[am]SQ[bm]SQ[cm]SQ[dm]SQ[em]TR[hm]TR[im]TR[jm]TR[km]TR[lm]TR[mm]TR[nm]TR[om]SQ[an]SQ[bn]SQ[cn]SQ[dn]TR[hn]TR[in]TR[jn]TR[kn]TR[mn]TR[nn]TR[on]SQ[ao]SQ[bo]SQ[co]TR[ho]TR[io]TR[jo]TR[ko]TR[mo]TR[hp]TR[ip]TR[jp]TR[kp]TR[lp]SQ[rp]SQ[sp]TR[hq]TR[iq]TR[jq]TR[kq]TR[lq]SQ[rq]SQ[sq]TR[gr]TR[ir]TR[jr]TR[kr]SQ[pr]SQ[qr]SQ[rr]SQ[sr]TR[gs]TR[hs]SQ[qs]SQ[rs]SQ[ss]C[I imagine because it's two AIs, the game is more or less even. No one's winning by, like, 20 points? Let's actually do some real counting so we can see.
Black has around 80 points, and white has around 96 points on the board.]
;B[mg]TR[oc]TR[md]TR[nd]TR[pe]TR[pf]SQ[ji]SQ[ki]SQ[li]SQ[mi]SQ[ni]SQ[oi]SQ[jj]SQ[kj]SQ[lj]SQ[mj]SQ[nj]SQ[kk]SQ[lk]C[Black is aiming to capture the triangle stones so that the whole square area doesn't just become white points, which is fine; it's not a big deal.
A bunch of trades have happened.]
;W[rm]
;B[hf]TR[rm]C[Black ignores, opting to play here. I guess the atari is black's right.]
;W[fe]
(;B[rk]TR[bh]TR[ci]TR[di]TR[dj]TR[fj]TR[fk]C[I feel like white is pulling ahead since black can't use the left side aji; and if black is playing something like this, I think white can just ignore it.]
;W[ji]TR[bh]TR[ci]TR[di]TR[dj]TR[fj]TR[fk]C[White takes; so now, everything on the left is relatively safe.]
;B[jj]
;W[ni]C[White breaks in.]
;B[br]
(;W[bp]C[White just connects! This is very simple.]
;B[mi]C[Black is threatening to pull through.]
;W[mh]
;B[nh]
;W[oh]
;B[ng]
;W[mj]
;B[oi]
;W[nj]
;B[mr]TR[oc]TR[md]TR[nd]TR[pe]TR[pf]TR[oh]C[Black has captured stones, which is important.
We finally play the big endgame.]
;W[oj]
;B[pi]
;W[qj]
;B[bj]
;W[fi]C[White doesn't play any shenanigans. After black loses liberties here, it's hard to imagine he can get something here.]
;B[ai]TR[bj]C[These moves are kind of wasted ko threats, in my opinion. You have no reason to play these in your actual games.]
;W[cf]
(;B[ol]C[Black defends here.]
;W[nl]
;B[lk]C[But it looks like it's fine.]
;W[fo]
;B[go]
;W[rj]
;B[em]
;W[el]
;B[dm]C[Black adds aji.]
;W[dn]
;B[ri]
;W[nm]
;B[hh]C[What?! Are we making a big trade? That is a big trade, my friend.
Essentially, at this point, both players are, like, "Hey, do you want to make a trade?"]
;W[gi]
;B[mm]
;W[kf]
;B[lf]
;W[ok]
;B[nn]
;W[ar]C[So instead of playing the ko, white just plays here. Playing the ko can be risky in a very even game, but I think white has this in the bag.]
;B[cs]
;W[qk]
;B[cm]
;W[bl]
;B[bn]C[Interesting that this is the move that we played.]
(;W[cl]C[Empty triangle, makes sense; removing the liberties.
It's very complicated, but taking a liberty is usually a safe measure.]
;B[sj]C[Black plays big endgame.]
;W[rl]
;B[sk]C[Black has to connect.]
;W[ie]
;B[je]
;W[jf]TR[hf]TR[hh]C[White takes the stones.]
;B[lj]C[Black threatens to save a stone.]
;W[om]
;B[ej]
;W[bm]
;B[ba]
;W[ab]
;B[li]
;W[pl]
;B[mk]
;W[pj]
;B[cn]
;W[co]
;B[ad]
;W[da]TR[ba]TR[cb]TR[db]SQ[mb]TR[cc]SQ[jc]SQ[kc]SQ[lc]SQ[oc]TR[ad]TR[cd]TR[dd]SQ[md]SQ[nd]SQ[pe]SQ[pf]TR[bh]SQ[oh]TR[ai]TR[ci]TR[di]TR[ni]TR[bj]TR[dj]TR[ej]TR[fj]TR[mj]TR[nj]TR[oj]TR[pj]TR[qj]TR[rj]TR[fk]SQ[ik]TR[ok]TR[qk]SQ[il]SQ[jl]SQ[kl]SQ[ll]TR[nl]TR[pl]TR[cm]TR[dm]TR[em]SQ[hm]SQ[im]SQ[jm]SQ[km]SQ[lm]TR[nm]TR[om]TR[bn]TR[cn]SQ[hn]SQ[in]SQ[jn]SQ[kn]SQ[mn]TR[on]SQ[ho]SQ[io]SQ[jo]SQ[ko]SQ[mo]SQ[ip]SQ[jp]SQ[kp]SQ[lp]SQ[hq]SQ[iq]SQ[jq]SQ[kq]SQ[lq]SQ[gr]SQ[ir]SQ[jr]SQ[kr]SQ[lr]SQ[gs]SQ[hs]SQ[is]SQ[js]SQ[ks]SQ[ls]C[It doesn't look like there are gonna be any big twists, I think.
The left side died; white kind of broke into the right side; black got the center; black got the top right.]
;B[an]
;W[ao]
;B[eo]
;W[do]
;B[al]
;W[bo]
;B[aq]
;W[ki]
;B[kg]
;W[ap]
;B[as]
;W[bs]
;B[nk]
;W[ql]
;B[as]
;W[dl]
;B[gp]
;W[bs]
;B[hg]
;W[if]
;B[as]
;W[am]
;B[kj]
;W[jh]
;B[qi]
;W[pc]
;B[ke]
;W[ge]
;B[ne]
;W[me]
;B[le]
;W[pd]
;B[mf]
;W[re]
;B[rd]
;W[os]
;B[aq]
;W[qf]
;B[rf]
;W[ar]
;B[ga]
;W[fa]
;B[ha]
;W[aq]
;B[si]
;W[bs]
;B[cr]
;W[as]
;B[sl]
;W[sm]
;B[pn]
;W[ol]
;B[qn]
;W[hc]
;B[ic]
;W[ns]
;B[ms]
;W[]
;B[]C[It was a draw!

[KataGo ±0\]

-- chat --
Maharani: Video review by Tang Jie (CHN 5d): https://www.youtube.com/watch?v=h0gJPwrdTqU
]
)(;W[ql]C[So if white just plays away...]
;B[bk]C[... black here...]
;W[cl]C[... white connects...]
;B[ej]C[... oh, and then just here?]
;W[bm]
;B[cn]TR[cj]TR[ck]TR[dk]TR[bl]TR[cl]TR[el]TR[fl]TR[bm]TR[fm]C[Now the white group is in trouble!]
(;W[bo]
;B[ek]C[Black can play here.]
)(;W[ei]C[So white plays this one...]
;B[dl]C[... but then black ataris...]
;W[ek]
;B[bi]TR[ql]C[... and connects, so yeah yeah yeah, white cannot tenuki.]
))(;W[ej]C[But I don't know if this would be any worse.

[KataGo gives this move -36 pp for white.\]]
(;B[cn]C[I guess the idea is, if black plays here...]
;W[do]C[... white can make an eye, and it's eye versus no eye.]
)(;B[do]C[If black plays here, though...]
;W[co]
(;B[cn]
;W[eo]C[... I imagine black can make some sort of ko.]
;B[bo]C['Cause black has a lot of outside liberties...]
;W[aq]C[... and even if it's like this...]
;B[ap]
;W[ao]
;B[an]C[... the idea is that black has four liberties. This is a double ko; it's not really worth it.]
)(;B[sj]C[[KataGo variation.\]]
;W[ie]
;B[cn]
;W[eo]
;B[rl]
;W[ql]
;B[sk]
;W[lj]
;B[kj]
;W[ke]
;B[le]
;W[om]
;B[pl]
;W[aq]
;B[qi]
;W[li]
;B[os]
;W[ps]
;B[ns]
))))(;B[kj]C[I would have personally played here...

[KataGo gives this move -4 pp for black.\]]
;W[lj]C[... and then defended somehow? I'm unsure.]
;B[ol]C[[KataGo variation.\]]
;W[ll]
;B[kl]
;W[nl]
;B[mm]
;W[rj]
;B[rl]
;W[pj]
;B[ri]
))(;W[bs]C[If white plays the ko now...

[KataGo gives this move -16 pp for white.\]]
(;B[cs]
;W[rl]
;B[bp]C[... white risks this...]
;W[bo]
;B[aq]TR[bh]TR[ci]TR[di]TR[dj]TR[fj]TR[fk]C[... and then there is still the aji. White needs to be very careful.]
;W[qk]C[So if white plays another move like this...]
;B[hh]C[... she runs into this.]
;W[gi]C[White connects...]
;B[hg]C[... black connects here...]
;W[if]TR[ig]TR[jg]TR[ih]TR[kh]TR[lh]TR[ji]TR[ni]C[... and then the white center group is in a bit of trouble.]
;B[ie]
;W[ge]
;B[bj]TR[gi]TR[hi]TR[gj]TR[hj]TR[gk]C[If black can make this work somehow, threatening to ladder the marked stones...]
;W[ah]C[... white needs to take...]
;B[em]C[... and then black needs to throw in...]
;W[el]
;B[dm]TR[gi]TR[hi]TR[gj]TR[hj]TR[gk]C[... now black is getting somewhere.
Essentially, this would be really bad for white. There's a lot of aji, and if black uses it correctly, he can capture the marked stones, which is really big.]
)(;B[em]C[[KataGo variation.\]]
;W[el]
;B[dm]
;W[dn]
;B[cm]
;W[cn]
;B[hh]
;W[gi]
;B[fi]
;W[gh]
;B[bj]
;W[bk]
;B[ai]
)))(;B[hh]C[Black is also looking to essentially cut the center...

[KataGo gives this move -2 pp for black.\]]
;W[gi]
(;B[hg]C[... that's really interesting.]
;W[if]C[But black can't really cut here, for reasons.]
)(;B[gh]C[Oh, but this...]
;W[fi]
;B[fh]
;W[ei]
;B[eh]
;W[ej]TR[jg]C[... would allow white to capture. So this is why white turned at K13, which is an important discovery.]
)(;B[br]C[[KataGo variation.\]]
;W[bp]
;B[rk]
;W[ji]
;B[jj]
;W[ni]
;B[mi]
;W[mh]
;B[nh]
;W[oh]
;B[ng]
;W[mj]
;B[oi]
;W[li]
;B[em]
;W[el]
;B[dn]
;W[eo]
;B[dm]
;W[bl]
;B[oj]
;W[mr]
;B[lr]
;W[ns]
;B[kq]
;W[rl]
;B[qk]
;W[bs]
;B[cs]
;W[lk]
;B[ll]
;W[cr]
;B[bj]
;W[fi]
;B[ai]
;W[ej]
;B[cf]
;W[ce]
;B[cs]
;W[sk]
;B[sj]
)))(;W[ji]C[I wonder if there is some aji in the top left corner to behold. So like, if white just takes in the center...]
;B[ba]C[... black can play this one!]
;W[ab]
(;B[da]C[This is a bad move.]
)(;B[ea]C[Black wants to threaten to connect underneath, so like this.]
;W[fa]C[If white plays here, black already has the eye...]
;B[bc]C[... so black can just take, and this group would be alive.]
)))(;B[cb]C[Black doesn't connect, 'cause then he's locally dead...

[KataGo gives this move -6 pp for black.\]]
(;W[hc]TR[cb]TR[db]TR[cc]TR[cd]TR[dd]C[... right?]
)(;W[ib]C[[KataGo variation.\]]
;B[ne]
;W[mf]
;B[mg]
;W[kg]
;B[cf]
;W[bf]
;B[bg]
;W[cg]
;B[fj]
;W[gh]
;B[bj]
;W[bh]
;B[cl]
)))(;W[ic]C[If white blocks...

[KataGo gives this move -20 pp for white.\]]
(;B[ee]C[... black plays like this...]
(;W[fc]
;B[fe]C[... a little suspicious...]
;W[he]
;B[hd]C[... but then we have this move, which is a cut.]
;W[hc]C[And if white connects...]
;B[hf]
;W[ie]
;B[if]
;W[je]
;B[jf]
;W[ke]
;B[le]
;W[kf]
;B[kg]TR[lg]C[... black now has a ladder-breaker, which is really nice! So M13 is a big-brain move.]
)(;W[hd]C[So what will happen is, in this type of position, white can play here first...]
;B[he]C[... to which I think, if black blocks...]
(;W[fc]
;B[fe]C[... and then connects...]
;W[ie]
;B[if]
;W[je]
;B[jf]
;W[ke]
;B[le]
;W[kf]C[... this is an atari.]
)(;W[ie]TR[fc]C[The F17 atari is probably not worth as much?]
;B[if]
;W[je]
;B[jf]
;W[ke]
;B[kg]TR[id]TR[jd]TR[kd]TR[ld]C[I think black has to give up the marked stones, right? So one thing he can do is, he can force here...]
;W[le]C[... and white takes.]
;B[hh]C[Black ataris once...]
;W[hg]C[... like this...]
;B[gh]C[... and extends, threatening everything.]
;W[ji]TR[hi]TR[gj]TR[hj]TR[gk]C[White plays this double-atari, basically threatening to save the marked stones.]
;B[jj]TR[hi]TR[gj]TR[hj]TR[gk]C[Black can extend, and white's marked stones are still in trouble.]
;W[gg]C[So white probably wants to extend...]
;B[fj]TR[hi]TR[gj]TR[hj]TR[gk]C[... and let black capture these stones.]
;W[kh]C[White could probably just play this and go for everything...]
(;B[fg]
;W[fh]
;B[gi]
;W[eg]TR[cc]TR[cd]TR[dd]TR[fd]TR[ee]TR[ge]TR[he]TR[fg]C[... the idea being, black loses these stones.]
)(;B[fh]C[And if black extends...]
;W[fg]C[... white could just block.]
)(;B[df]C[Black could try to live. For example, if he plays here...]
;W[ce]
;B[de]
;W[bg]C[... if white just fixes, she runs into a small issue.]
;B[eg]C[Black is looking to make two eyes.]
;W[fh]C[White ataris once...]
;B[gi]
;W[eh]C[... and needs to connect.]
;B[db]C[This is sente.]
;W[eb]
;B[bb]
;W[bd]
;B[bc]
;W[ca]C[And then if white tries doing this...]
;B[da]
;W[ac]
;B[ab]
;W[ba]
;B[fg]C[... black can cut here.]
;W[ff]C[If white plays this move...]
;B[gf]
;W[fe]
;B[ef]
;W[fe]C[... and tries playing this way out...]
;B[hf]C[... the issue is, black can play the atari...]
;W[jh]
;B[kf]C[... and then I think he just connects...]
;W[mg]
;B[mh]C[... and the idea is, he can cross-cut.
Obviously, I didn't play optimally; but if white tries really hard to kill the black group, it's unfavourable.]
))))(;B[hd]C[[KataGo variation.\]]
;W[fc]
;B[jk]
;W[mg]
;B[ne]
;W[lf]
)))(;B[kj]TR[jh]TR[ii]TR[ij]C[There are some interesting issues; so for example, if black keeps trying to fight for the center stuff and save these stones...

[KataGo gives this move -21 pp for black.\]]
(;W[mg]C[... white can play stuff like this, and then black needs to go back to the top left; so this is not happening.]
)(;W[kh]C[[KataGo variation.\]]
;B[ic]
;W[ib]
)))(;W[ed]C[I think the idea is that if white goes through...

[KataGo gives this move -36 pp for white.\]]
;B[kh]TR[na]TR[oa]TR[pa]TR[qa]TR[ra]TR[sa]TR[nb]TR[ob]TR[pb]TR[qb]TR[rb]TR[sb]TR[mc]TR[nc]TR[oc]TR[pc]TR[qc]TR[rc]TR[sc]TR[jd]TR[kd]TR[ld]TR[md]TR[nd]TR[od]TR[pd]TR[qd]TR[rd]TR[sd]TR[je]TR[ke]TR[le]TR[me]TR[ne]TR[oe]TR[pe]TR[qe]TR[re]TR[se]TR[kf]TR[lf]TR[mf]TR[nf]TR[of]TR[pf]TR[qf]TR[rf]TR[sf]TR[kg]TR[lg]TR[mg]TR[ng]TR[og]TR[pg]TR[qg]TR[rg]TR[sg]TR[lh]TR[mh]TR[nh]TR[oh]TR[ph]TR[qh]TR[rh]TR[sh]TR[ji]TR[ki]TR[li]TR[mi]TR[ni]TR[oi]TR[pi]TR[qi]TR[ri]TR[si]TR[ij]TR[jj]TR[kj]TR[lj]TR[mj]TR[nj]TR[oj]TR[pj]TR[qj]TR[rj]TR[sj]TR[ik]TR[jk]TR[kk]TR[lk]TR[mk]TR[nk]TR[ok]TR[pk]TR[qk]TR[hl]TR[il]TR[jl]TR[kl]TR[ll]TR[ml]TR[nl]TR[ol]TR[pl]TR[ql]TR[gm]TR[hm]TR[im]TR[jm]TR[km]TR[lm]TR[mm]TR[nm]TR[om]TR[pm]TR[gn]TR[hn]TR[in]TR[jn]TR[kn]TR[ln]TR[mn]TR[nn]TR[on]TR[pn]TR[qn]TR[go]TR[ho]TR[io]TR[jo]TR[ko]TR[lo]TR[mo]TR[no]TR[oo]TR[po]TR[qo]TR[gp]TR[hp]TR[ip]TR[jp]TR[kp]TR[lp]TR[cq]TR[fq]TR[gq]TR[hq]TR[iq]TR[jq]TR[kq]TR[lq]TR[cr]TR[dr]TR[er]TR[fr]TR[gr]TR[hr]TR[ir]TR[jr]TR[kr]TR[lr]TR[fs]TR[gs]TR[hs]TR[is]TR[js]TR[ks]TR[ls]C[... black will take this opportunity to take everything, and this area is just massive [around 144 points\].]
;W[id]C[[KataGo variation.\]]
;B[ie]
;W[kf]
;B[lf]
))(;B[ic]C[I would think black would want to try something like this.

[KataGo gives this move -13 pp for black.\]]
;W[ib]
(;B[hb]C[But black can't double-hane, essentially.]
;W[id]
;B[hc]
;W[hd]C[This would be really weird for black to play, but I just thought if he plays this way...]
;B[fc]
(;W[gb]TR[hb]TR[hc]TR[ic]C[... he gives up these stones...]
;B[fb]TR[dc]TR[ec]C[... to kill these ones.]
;W[jj]C[But then white is going to play the ladder. This feels good for white.]
)(;W[fb]C[White could also play here as well, I just realized.]
;B[gb]C[If black plays here...]
;W[ga]C[... white has this atari...]
;B[eb]
;W[ha]
;B[db]C[... and white can force black to capture.]
;W[fe]
;B[ed]TR[be]SQ[fe]TR[ch]TR[dh]TR[bi]TR[hi]TR[cj]TR[gj]TR[hj]TR[ck]TR[gk]TR[fl]TR[fm]C[If it's like this, then it's a no-brainer, 'cause now white has all this thickness, an extra stone at F15...]
;W[mf]TR[jd]TR[kd]TR[ld]C[... and white can jump out now to capture the marked stones.]
))(;B[jb]C[Black could try this...]
;W[id]
;B[lb]
;W[hc]
;B[kb]
;W[ic]C[... but the squeeze doesn't actually do anything for black.]
)(;B[lg]C[[KataGo variation.\]]
;W[lh]
;B[jj]
;W[oe]
;B[pd]
;W[mg]
;B[mf]
;W[lf]
;B[kg]
))(;B[ge]C[The next thing we need to look at is, what happens if black hanes here?

[KataGo gives this move -5 pp for black.\]]
;W[he]
(;B[fc]C[Black can push...]
)(;B[ic]C[... or maybe black now asks this question?]
;W[ed]C[If white goes through...]
;B[id]TR[mb]TR[cc]TR[jc]TR[kc]TR[lc]TR[cd]TR[dd]TR[fd]TR[ge]SQ[jj]C[... black needs to just take the territory, right?
White gets to capture the corner stones, black captures on the top; but then white potentially gets to play the ladder?]
;W[ee]C[Or white needs to finish cutting through this space...]
;B[kh]TR[ic]SQ[oc]TR[id]TR[jd]TR[kd]TR[ld]SQ[md]SQ[nd]SQ[pe]SQ[pf]SQ[kg]C[... and then black can play through here; because now, with the triangle stones safe, black can aim to capture the center points; and white had to add three extra stones in the corner.
So black extends, and you can kind of see that he has a very large center and is also aiming to capture the square stones as well, so white would need to answer at L13.]
)(;B[bf]C[[KataGo variation.\]]
;W[mf]
;B[kh]
;W[kg]
;B[lh]
;W[bg]
;B[cf]
;W[af]
;B[ce]
)))(;W[bh]C[My immediate thought is, what if white just descends? Well, this can be a bit troublesome.
Now we have different aji that black can play here, but I imagine this move is probably no worse than the game move.

[KataGo gives this move -11 pp for white.\]]
(;B[em]C[Again...]
;W[el]
;B[dm]
;W[dl]
;B[cm]TR[cj]TR[ck]TR[dl]TR[el]TR[fl]TR[fm]TR[en]TR[cp]TR[dp]TR[ep]TR[fp]TR[bq]TR[fq]TR[cr]TR[ds]C[... when we get here, black is now threatening both groups.]
;W[dn]C[So if white just defends this one...]
;B[cn]C[... I think black can just turn for maximum liberties...]
;W[co]
;B[eo]C[... and he can play the atari; this is definitely possible.]
;W[do]C[White connects.]
(;B[br]C[If black ataris...]
;W[bp]C[... white needs to fix.]
;B[cl]C[Black can push first...]
;W[dk]
;B[bn]C[... and I wanna say he can empty-triangle...]
;W[bl]C[... but black's running out of liberties.]
)(;B[bi]C[I think black can push in here first, and then white needs to protect.]
;W[bp]C[If white doesn't protect, say she plays here...]
;B[cl]C[... I think black gets to squeeze?]
;W[dk]
;B[bk]
;W[fj]
;B[bj]
;W[ek]
;B[ej]
;W[fk]
;B[fi]C[Black hanes...]
;W[gh]C[... so white needs to fix...]
;B[bn]TR[dn]TR[en]TR[co]TR[do]TR[bp]TR[cp]TR[dp]TR[ep]TR[fp]TR[bq]TR[fq]TR[cr]TR[ds]C[... and then black can empty-triangle, and white's bottom group is in trouble.]
;W[ar]C[So white would need to make eyes?]
;B[ai]TR[be]TR[bh]TR[ch]TR[dh]C[And then black can make an eye, and white's marked group is also in trouble.]
))(;B[ge]C[[KataGo variation.\]]
;W[he]
;B[bi]
;W[eh]
;B[bf]
;W[cf]
;B[ce]
;W[bg]
;B[dl]
)))(;B[ic]C[If black is able to get this double-hane...

[KataGo gives this move -5.5 pp for black.\]]
;W[ib]
(;B[hb]
;W[hc]C[... white can't just simply connect...]
;B[id]
;W[jb]
;B[fc]
;W[fb]
;B[gb]TR[cc]TR[fc]TR[cd]TR[dd]TR[fd]C[... 'cause there is some real threat here to save black's stones, so white does need to be very careful about that.]
)(;B[lf]C[[KataGo variation.\]]
;W[lg]
;B[mg]
;W[id]
;B[ie]
;W[hc]
;B[bd]
;W[db]
;B[bf]
;W[ce]
;B[ci]
;W[bi]
;B[bg]
;W[bh]
)))(;B[lf]C[I imagine black should probably just jump out.

[KataGo gives this move -14 pp for black.\]]
;W[pc]C[[KataGo variation.\]]
;B[lb]
;W[ic]
;B[nf]
;W[pd]
;B[qc]
;W[pb]
;B[ma]
;W[qg]
;B[qh]
;W[rf]
;B[qf]
))(;W[jj]TR[ii]TR[ij]C[When white opts to take the two stones...

[KataGo gives this move -20 pp for white.\]]
(;B[ji]
;W[ki]
;B[kh]
;W[lh]
;B[kg]
;W[kf]
;B[lg]
;W[mg]
;B[lf]
;W[le]
;B[mf]
;W[nf]
)(;B[lf]TR[jd]TR[kd]TR[ld]C[... black can play a ladder-breaker to save his stones...]
;W[kh]
;B[mg]TR[oc]TR[md]TR[nd]TR[pe]TR[pf]C[... and then he can just attack the marked stones, so this is kind of a double-whammy.]
)(;B[od]C[[KataGo variation.\]]
;W[en]
;B[mf]
;W[ji]
;B[bg]
;W[bh]
;B[ic]
;W[ib]
;B[id]
)))(;W[nc]C[The idea is, if white plays this...

[KataGo gives this move -2 pp for white.\]]
;B[md]
(;W[ob]
;B[lb]
;W[na]
;B[ic]
;W[kb]
;B[jb]
(;W[la]TR[id]C[... this is gonna be too good. Black can connect at J16...]
;B[mg]TR[pd]C[... but I imagine black will probably jump out, and he can cut at Q16 later.]
)(;W[jj]C[White doesn't have the ladder here...]
;B[ji]
;W[ki]
;B[kh]
;W[lh]
;B[kg]
;W[kf]
;B[lg]
;W[mg]
;B[lf]
;W[le]
;B[mf]
;W[me]
;B[nf]C[... so she can't take these stones.]
))(;W[lb]C[[KataGo variation.\]]
;B[dn]
;W[dl]
;B[kh]
;W[lg]
;B[lh]
;W[mf]
;B[bg]
;W[mh]
;B[el]
;W[bo]
;B[mi]
;W[ni]
;B[nh]
;W[mg]
;B[li]
;W[oh]
;B[fj]
;W[gh]
;B[nj]
;W[oi]
;B[ci]
;W[cm]
;B[fe]
;W[ge]
)))(;W[en]C[I wonder...

[KataGo gives this move -2.5 pp for white.\]]
(;B[bp]C[... if black does this...]
(;W[br]
;B[em]
;W[el]
;B[dm]
;W[dl]
;B[dn]C[... and then can play the atari...]
;W[eo]
;B[bo]TR[en]TR[eo]TR[cp]TR[dp]TR[ep]TR[fp]TR[fq]C[... and then extends, now white's group is in trouble?]
)(;W[bo]C[So the idea is that because of the existing threat...]
;B[br]
;W[ap]C[... white can actually just take...]
;B[ar]C[... and then black takes the corner like this.]
))(;B[jg]C[[KataGo variation.\]]
;W[if]
;B[jf]
;W[id]
;B[em]
;W[el]
;B[dm]
;W[dk]
;B[bg]
;W[bh]
;B[cf]
;W[be]
;B[bf]
;W[cb]
;B[bb]
;W[ba]
;B[db]
;W[da]
;B[nb]
;W[md]
;B[nc]
;W[me]
;B[lb]
;W[ob]
;B[nd]
;W[je]
;B[ke]
;W[ie]
;B[lf]
)))(;B[fn]TR[fk]C[The F9 atari is so that black can get forcing moves with this.

[KataGo gives this move -5.5 pp for black.\]]
;W[en]C[If white blocks...]
(;B[br]C[... black has more aji that he can use; which is very important for the ko, by the way.]
;W[bs]C[If we just play the ko directly...]
;B[cs]
;W[md]C[... let's say white just plays a bad move here...]
;B[bp]C[... now if black plays here...]
;W[bo]
(;B[em]
;W[el]
;B[dm]
;W[dl]
;B[eo]
;W[dn]
;B[do]
;W[cn]C[... black has potentially more aji that he can use to attack these white stones.]
)(;B[aq]C[Not completely sure how it's all going to work...]
;W[cn]C[... but white would need to protect, essentially.]
;B[em]
;W[el]
;B[eo]
;W[dn]C[And if black can leave it even like this, he has still more ko threats.]
))(;B[ii]C[[KataGo variation.\]]
;W[hh]
;B[ih]
;W[ig]
;B[bg]
;W[bh]
;B[md]
;W[nb]
;B[hg]
;W[gg]
;B[hf]
;W[gf]
;B[ie]
;W[gp]
;B[ge]
;W[fe]
;B[he]
;W[ef]
;B[hp]
;W[ed]
;B[cf]
;W[og]
;B[nh]
)))(;W[fk]C[You can see that black is making points on the bottom, but is losing points on the left.

[KataGo gives this move -11 pp for white.\]]
;B[hj]C[[KataGo variation.\]]
;W[oh]
;B[mh]
;W[md]
;B[me]
;W[nd]
))(;W[fc]C[If white plays here...

[KataGo gives this move -17 pp for white.\]]
;B[ec]
;W[eb]
;B[ed]
(;W[gb]C[... I believe she can play this tiger's mouth...]
(;B[gc]
;W[fb]
;B[hc]
;W[cc]
;B[bc]
;W[bb]C[... and we run into this situation...]
;B[cb]
;W[db]
;B[ba]
;W[ca]
;B[ab]
;W[bd]
;B[cb]C[... where this will probably happen. And the idea is, black's trying to kill white; so there's a ko.]
)(;B[db]C[[KataGo variation.\]]
;W[gd]
;B[kd]
;W[kc]
;B[jc]
;W[gf]
;B[ld]
;W[mc]
))(;W[gc]C[Or white can extend...]
;B[db]TR[eb]TR[dc]C[... the idea being, she just gives up these stones...]
;W[gd]
;B[fb]
;W[gb]C[... giving up the corner for something larger.]
)))(;W[ln]C[If white takes M6 out...

[KataGo gives this move -1 pp for white.\]]
;B[ko]
(;W[kn]
;B[jo]TR[kn]TR[ln]TR[mn]TR[mo]C[... she's just adding strength to black. There's no reason to continue saving the N5 stones unless white can do something on the other side.]
)(;W[ll]C[[KataGo variation.\]]
;B[lk]
;W[kk]
;B[kl]
;W[kn]
;B[jo]
;W[jl]
;B[lm]
;W[kj]
;B[dk]
;W[dl]
;B[el]
;W[dm]
;B[em]
;W[bg]
;B[jm]
;W[km]
;B[dn]
;W[cn]
;B[il]
;W[ll]
;B[cl]
;W[cm]
;B[kl]
;W[jk]
;B[jn]
;W[ll]
;B[ci]
;W[bi]
;B[kl]
;W[dc]
;B[ll]
;W[ee]
)))(;B[nr]C[This is something black can play. It's relatively small, but there is no issue with playing it.

[KataGo move.\]]
;W[oq]C[But white's going to connect immediately.]
;B[dj]C[[KataGo variation.\]]
;W[ck]
;B[di]
;W[ch]
;B[qm]
;W[mo]
;B[kp]
;W[ll]
;B[kn]
;W[dh]
;B[eh]
;W[dk]
;B[eg]
;W[ic]
;B[jd]
;W[id]
;B[ld]
;W[kc]
;B[je]
;W[md]
;B[lj]
;W[gp]
;B[me]
;W[le]
;B[lf]
;W[kd]
)(;B[ic]TR[mo]C[I imagine if white cuts at N5 right away...

[KataGo gives this move -7 pp for black.\]]
(;W[mo]
;B[nr]C[... black will just play this way.]
;W[oq]C[Here, black should probably at least protect his shape.]
;B[qm]C[So maybe bamboo...]
;W[lo]
(;B[kp]C[... and then black can fix like this...]
;W[lp]
;B[lq]
;W[kq]
;B[kr]
;W[jq]
;B[jr]C[... but I'm unsure.]
)(;B[kq]TR[nr]C[The O2 atari also lends itself well to this type of shape.]
;W[kp]
;B[jq]C[If black connects...]
;W[lr]C[... he does give up the peep.]
(;B[mr]C[So if black plays here...]
;W[lq]
;B[lp]
;W[ms]TR[lp]TR[mp]TR[mq]TR[mr]TR[nr]C[... he loses these stones.]
)(;B[lq]
;W[mr]TR[lo]TR[mo]TR[kp]C[But white's outside stones are hurt.]
)))(;W[mr]C[[KataGo variation.\]]
;B[cg]
)))(;B[mp]C[I'm not sure why black doesn't hane here.

[KataGo gives this move -18 pp for black.\]]
;W[pp]C[[KataGo variation.\]]
;B[mq]
;W[mo]
;B[qm]
;W[lo]
;B[kp]
;W[nq]
;B[nr]
;W[lm]
;B[ho]
;W[or]
))(;W[rq]C[Say white plays something like this...]
;B[mp]C[... black can hane.]
;W[nq]
;B[mq]
))(;B[pp]C[The idea is, now if black cuts...

[KataGo move.\]]
(;W[oo]C[... and white connects...]
;B[qq]C[... black has a double-atari.]
;W[pr]C[So white extends...]
;B[rp]C[... and then black gets the corner.]
)(;W[rq]C[I imagine white can still connect...]
;B[oo]
(;W[mp]C[... and then she just extends, which isn't what black wants to do.]
)(;W[nq]C[[KataGo variation.\]]
;B[or]
;W[pr]
;B[rn]
;W[cf]
;B[ch]
;W[ej]
;B[eh]
;W[ef]
;B[dc]
;W[gf]
;B[gh]
;W[hd]
;B[ig]
;W[gj]
;B[hj]
;W[hk]
;B[ij]
;W[ik]
))))(;B[mo]C[Even if black plays here...]
;W[oo]
;B[pp]C[... and then cuts...]
;W[op]C[... white can connect...]
(;B[qq]
;W[rp]C[... and now it's a little more difficult for black.]
(;B[qr]C[If here...]
;W[pr]C[... white can descend...]
;B[rn]C[... black hanes...]
;W[rr]C[... and white clamps.]
)(;B[rq]C[If black plays here...]
;W[rn]C[... white probably wants to extend...]
(;B[oq]
;W[pr]
;B[or]
;W[pn]TR[oq]C[... so that black can't cut at P3.]
)(;B[qm]C[So black defends...]
;W[pr]TR[qq]TR[rq]C[... white plays here, and then black is captured.]
)))(;B[rp]C[If black goes for this...]
;W[qq]
;B[rn]C[... it's a total win for white, so black can't do that.]
)))(;W[oo]C[Essentially, if white plays here...

[KataGo gives this move -2 pp for white.\]]
;B[pp]
(;W[op]
;B[qq]C[... black's coming for the corner.]
;W[qr]C[[KataGo variation.\]]
;B[rp]
;W[rq]
;B[kc]
;W[kd]
;B[jc]
;W[jd]
;B[ic]
;W[ld]
;B[cg]
;W[qp]
;B[ql]
;W[df]
;B[dd]
;W[he]
;B[gd]
;W[oj]
;B[om]
;W[oh]
;B[pi]
;W[oi]
;B[eh]
)(;W[qq]C[And if white connects...]
;B[op]C[... white is cut.]
;W[oq]
;B[mo]TR[qq]C[So white can't play R3.]
)))(;B[br]C[I think the idea is, there are a lot of options for white with this technique.

[KataGo gives this move -0.5 pp for black.\]]
(;W[er]C[White wants to play here...]
(;B[dr]
;W[gr]C[... and then if she ataris...]
;B[fp]C[... and black ataris...]
(;W[fs]
;B[gq]
;W[fo]
;B[fr]C[... there is a chance that white looks to play the ko...]
;W[qf]C[... but realistically speaking, the only ko threat is here...]
;B[fq]
;W[rf]TR[fo]TR[cp]TR[dp]TR[ep]TR[bq]TR[er]TR[gr]TR[fs]C[... and I don't think this is big enough for white to ruin her shape on both sides.]
)(;W[gq]C[So what will happen is, white connects...]
;B[fo]C[... and black will extend; this is popular.]
;W[bo]
;B[aq]
;W[dl]C[White can jump out, and then black can do something about the bottom or jump out as well.]
;B[ho]C[Probably something here...]
;W[jq]C[... but then white gets to run along.]
))(;B[es]C[[KataGo variation.\]]
;W[gr]
;B[dr]
;W[gq]
;B[ln]
;W[om]
;B[pl]
;W[ol]
;B[ok]
;W[nk]
;B[nj]
;W[mk]
;B[jm]
;W[jo]
;B[fo]
;W[dl]
;B[oj]
;W[km]
;B[pp]
;W[qq]
))(;W[gr]C[Or maybe white plays the double-hane directly.]
;B[fp]C[Black plays the atari...]
;W[gq]
;B[bp]C[... and ataris...]
;W[bo]
;B[aq]C[... and takes...]
;W[fo]TR[dn]C[... and white jumps at D6, or plays here.]
)))(;W[pl]C[White also has the option of jumping in here.

[KataGo gives this move -2 pp for white.\]]
(;B[no]TR[oq]C[Essentially, white would be aiming to force black to fix her cutting issue at P3.]
;W[mp]
)(;B[oq]C[Later in the game...]
;W[op]
;B[pp]
;W[qq]
;B[nq]C[... if black is strong enough...]
;W[mq]
;B[mr]
;W[lq]
;B[lr]
;W[kq]TR[oq]C[... black would want to be able to cut at P3; but as of right now, he is not strong enough to do it.]
)(;B[om]C[[KataGo variation.\]]
;W[nk]
;B[mm]
;W[lp]
;B[mc]
;W[me]
;B[kd]
)))(;B[lq]TR[np]C[O4 kind of encourages this pincer.

[KataGo gives this move -6.5 pp for black.\]]
;W[mq]C[But if white kicks...]
;B[lp]
;W[nn]C[... and jumps...]
(;B[pk]C[... and black plays high...]
(;W[ph]C[... white can exchange this first.]
)(;W[pi]C[Or white can play here...]
(;B[qi]
;W[qh]
;B[rh]
;W[qj]
;B[ri]
;W[pj]C[... and is able to cut through here.]
)(;B[qh]C[If like this...]
;W[ph]C[... white can block...]
;B[qi]C[... and black can fix, but the damage is done.]
(;W[rm]TR[nn]C[White has O6; she can jump in and reduce the area.]
)(;W[jq]TR[lq]C[But more importantly, white can attack the bottom side; so black is not going to just play M3 immediately.]
))))(;B[fq]C[[KataGo variation.\]]
;W[cn]
;B[pl]
;W[hq]
;B[md]
))(;B[qk]C[But also, black doesn't wanna play this move, 'cause now he's really low on the right side.

[KataGo gives this move -5 pp for black.\]]
;W[pk]C[[KataGo variation.\]]
;B[pj]
))(;W[nq]C[If white plays low...

[KataGo gives this move -1 pp for white.\]]
(;B[ph]C[... I think black is opting to play stuff like this...]
)(;B[qk]C[... or he can play here.]
)(;B[pk]TR[rg]C[This black connection is awkward.]
(;W[qh]C[White can opt to play something like this.]
;B[qg]TR[qh]C[There are some issues, so white can't really play R12 directly. It is kind of a trap.]
(;W[pg]
;B[ph]C[For example, black may be able to play this way...]
(;W[qi]
;B[pi]
;W[qj]
;B[pj]C[... right?]
)(;W[pi]C[Or if we get into this position...]
;B[oh]
;W[qj]
;B[oi]
(;W[rl]C[... white would slide...]
)(;W[qk]C[... or maybe even push once...]
;B[pl]
;W[rm]C[... and then slide to try and make eye-space.]
;B[pj]
;W[qi]
;B[rn]
;W[qm]
;B[pm]
;W[rh]TR[sg]C[White is probably alive because of the T13 hane.]
;B[ql]
;W[rl]
;B[sm]C[Ah, no, white is probably dead. But there are some black weaknesses, right?]
)))(;W[ql]C[But white can definitely try stuff like this.]
)(;W[pi]C[Later in the game, white doesn't have to fix the shape.]
)(;W[ph]
;B[pg]
;W[og]C[White can come out like this.]
))(;W[ph]C[White can definitely jump...]
;B[qi]C[... and force the connection.]
)(;W[qi]C[Even this slide is probably fine, too...]
;B[qh]
;W[pi]
;B[ph]
;W[oi]C[... the idea being that white's going to allow herself to come out...]
;B[ri]
;W[qj]C[... and she kind of breaks into this area.]
)(;W[kd]TR[rg]TR[pk]C[White can break into black's awkward shape...]
;B[qh]C[... so black actually needs to add a move to fix the shape, which isn't really ideal.]
))(;B[md]C[[KataGo variation.\]]
;W[oi]
;B[qh]
;W[ph]
;B[ne]
;W[pd]
;B[qc]
;W[pl]
;B[pi]
;W[pj]
;B[qi]
;W[oh]
)))(;B[qg]C[If black plays this one, it means there are forcing moves for white.

[KataGo gives this move -2 pp for black.\]]
(;W[pg]
;B[qh]
;W[ph]
;B[pi]
;W[qf]
;B[rf]C[This is fairly normal.]
(;W[oi]C[But!]
(;B[oj]C[If black double-hanes...]
(;W[rg]C[... he runs into some issues, like this.]
;B[rh]
;W[re]
;B[sg]
;W[qc]
;B[rd]C[And if I remember correctly, it's something like this...]
(;W[ni]C[... and then white can extend...]
)(;W[pj]C[... or atari...]
;B[qi]
;W[ni]C[... and then extend.]
;B[ok]
))(;W[qc]C[But white's aiming to actually play something like this.]
))(;B[pj]C[So black usually extends again.]
))(;W[qi]C[Or white plays this...]
;B[qj]
;W[ri]
;B[rh]
;W[rj]TR[qo]C[... and in this case, R5 is in actually a pretty good spot.]
;B[qk]
;W[rk]
;B[ql]
;W[rl]
;B[qm]
;W[oi]C[White plays the atari...]
;B[pj]
;W[sh]C[... then hanes once...]
;B[rg]
;W[qb]TR[si]TR[sj]TR[sk]TR[sl]TR[rm]C[... and then plays here.
Which, five white liberties to probably about the same for black, so I don't think black has anything to worry about.]
))(;W[qi]C[For example, white has this pincer.]
;B[pg]TR[qi]C[And if black has to answer this...]
;W[qm]TR[oc]TR[pe]TR[pf]SQ[pg]C[... that means white gets a really nice squeeze here.
Her P17 stones are relatively strong, so they can handle something like Q13; and normally black gets that move, anyways.]
;B[ng]TR[oc]TR[pe]TR[pf]C[And to attack the P17 stones, black kind of has to jump out first...]
;W[ld]C[... and white can respond locally with the large knight's move.]
)(;W[op]C[[KataGo variation.\]]
;B[cn]
;W[fq]
;B[kc]
;W[pn]
;B[dj]
;W[ch]
;B[cp]
;W[cq]
;B[bq]
;W[co]
;B[bp]
;W[do]
;B[bo]
;W[dd]
;B[dc]
;W[cc]
;B[ec]
)))(;B[pd]C[I've seen sometimes that black can play this kind of situation...

[KataGo gives this move -13 pp for black.\]]
;W[od]
(;B[oe]
;W[pf]
;B[ne]TR[ld]C[... without the pincer.]
)(;B[qe]C[[KataGo variation.\]]
;W[pf]
;B[rg]
;W[op]
;B[lc]
;W[me]
;B[le]
)))(;B[lc]C[Black opts to not pincer, but if he did...

[KataGo gives this move -2 percentage points winrate (pp) for black.\]]
;W[pe]
(;B[pd]
;W[od]
;B[oe]
;W[pf]
;B[ne]
;W[pb]C[... we'd probably see something like this.]
;B[nb]
;W[re]
;B[rd]
;W[qe]
;B[rb]
;W[qb]
;B[rc]C[And I believe black connects first...]
;W[ra]
;B[se]C[... and then hanes...]
;W[sf]
;B[nd]C[... and then like this.]
;W[nc]C[Which, white can do this first...]
;B[mc]
;W[ob]
;B[mb]
;W[sd]
;B[ng]C[... and then black jumps, and this would be joseki.]
(;W[sb]C[White later can play...]
)(;W[sc]C[... to make it a ko.]
))(;B[qe]C[[KataGo variation.\]]
;W[pf]
;B[rg]
;W[le]
;B[qo]
;W[hc]
;B[op]
;W[qp]
;B[rp]
;W[po]
)))(;B[pd]C[There is an actual joseki related to the upper left corner in the game around move 64 that I'm not fully aware of.

[All comments on this game by Tang Jie (CHN 5d), except bracketed comments by Maharani.\]]
;W[qd]
;B[qc]
;W[qe]
;B[pc]
;W[qg]
;B[pf]C[I remember seeing a lot of pros play it recently, but I am not too familiar with it.
We get into this situation...]
;W[nf]C[... where I forget the complete joseki, but there's supposed to be this type of move...]
;B[qf]
;W[pe]
;B[oe]
;W[rf]C[... and then white plays like this, or something.]
))