(;FF[4]
CA[UTF-8]
GM[1]
DT[2020-08-21]
GN[Friendly Match]
PC[https://online-go.com/review/531548]
PB[Spetastian]
PW[shadowconservatory]
BR[27k]
WR[15k]
TM[259200]OT[86400 fischer]
RE[W+R]
SZ[19]
KM[6.5]
RU[Japanese]

;B[pd]
;W[dd]
;B[pq]
;W[cq]
;B[qk]C[This is called the (low) Chinese opening. Usually Black wants to try make points quickly on the side, possibly by attacking invading stones.]
(;W[gc]TR[fc]C[If you want to know why the ai prefers to play say f17...

(It's not that important though for now)]
(;B[jq]TR[po]TR[qo]C[typically Black might also want White to approach this stone, to attack it.]
(;W[gp]
;B[hp]
;W[hq]C[seems fine.]
;B[in]
(;W[qc]
;B[qd]
;W[pc]
;B[oc]
;W[ob]
(;B[go]
(;W[ho]
;B[ip]
;W[hn]
(;B[hm]
(;W[gq]
(;B[fo]
(;W[cf]
;B[co]
(;W[cm]
;B[fq]C[trying to separate.]
(;W[do]
(;B[fm]TR[an]TR[bn]TR[cn]TR[dn]TR[en]TR[fn]TR[gn]TR[ao]TR[go]TR[ap]TR[gp]TR[aq]TR[gq]TR[ar]TR[gr]TR[as]TR[bs]TR[cs]TR[ds]TR[es]TR[fs]TR[gs]C[I think the ai winrate gets choppy here because it just really wants to resolve that bottom corner.]
(;W[dj]
;B[fj]
;W[eh]
;B[gh]
;W[gg]
;B[hh]
;W[hg]
;B[jh]
;W[fk]C[I'd be unsure of the best way to answer this locally.]
(;B[hk]
;W[gj]
;B[fi]C[Anyway, just watch when stones are about to get cut.]
(;W[ei]
(;B[gi]
;W[hj]
(;B[ij]
;W[gk]
;B[hl]
;W[jf]
;B[ig]
;W[if]
;B[jg]
(;W[km]TR[ij]TR[ik]TR[il]TR[im]TR[in]TR[io]TR[ip]C[Might be just too close to Blacks strong stones. (Ai still wants to sort out bottom left and top right corners)]
;B[kl]
;W[nl]
;B[ml]
;W[mm]
;B[ll]
;W[lm]
;B[nm]
;W[nn]
;B[om]
;W[lo]C[this is a nice shape move.]
(;B[ln]C[this is a bit much.]
;W[kn]
;B[jm]
(;W[ko]
;B[mo]
;W[mn]
;B[np]LB[gn:1]LB[io:2]C[two lives]
;W[io]LB[gn:2]LB[jo:1]C[more of a ko threat probably. (still has two lives and so black can capture in this case)]
;B[jo]C[captures.]
(;W[no]
;B[mp]
;W[iq]C[This move actually messes with some of the variations to live a little bit.]
;B[jp]
;W[kq]
;B[kp]
(;W[on]C[I think the life and death is a bit tricky - you can get better at it with practice and puzzles. Apparently white must be ok.]
;B[pl]
;W[pm]
;B[ol]
;W[nk]LB[ll:A]LB[pl:B]TR[km]TR[lm]TR[mm]TR[kn]TR[mn]TR[nn]TR[on]TR[ko]TR[lo]TR[no]C[I don't think these stones are too important at the moment. Need to focus on the big group. Blacks surrounding stones are strong enough to probably capture either the two stones or the big group.]
;B[nj]
(;W[pp]
;B[op]
;W[jr]
;B[jn]
;W[qm]
;B[lp]
;W[po]
;B[qq]
;W[qp]
;B[rp]
;W[ro]
;B[sp]
;W[so]
;B[rq]
;W[ql]
;B[qi]C[Anyway it's tricky but it looks like white live - good job!]
;W[pk]C[good spotting the atari.]
;B[ok]
;W[oj]
;B[mj]
;W[oi]
;B[qj]
;W[og]
;B[qg]
(;W[nc]C[I think this is a big move.]
;B[od]
;W[nd]
;B[qe]
(;W[pb]C[I don't think you need to connect here.]
;B[rc]
;W[rb]
;B[rd]
;W[ne]
;B[sb]
;W[lf]
;B[lh]
;W[mg]
;B[mh]
;W[nh]
;B[ni]
;W[el]
;B[fl]C[Apparently white is ahead by like 60 points here or so.]
;W[ek]
;B[hi]
;W[en]
;B[ke]
;W[kf]
;B[jd]
;W[je]
;B[kc]
;W[ld]
;B[fp]
;W[eq]
;B[fn]
;W[fr]
;B[gr]
(;W[er]
(;B[hr]
(;W[ep]
;B[ir]
;W[rk]
;B[sj]
;W[em]
;B[gl]
;W[eo]
;B[fs]
;W[es]
;B[gs]
;W[cc]
;B[hf]
;W[gf]
;B[he]
;W[ge]
;B[id]
;W[kd]
;B[hc]
;W[gd]
;B[ib]
;W[hd]
;B[ie]
;W[hb]
;B[ic]
;W[gb]
;B[ja]
;W[kb]
;B[la]
;W[lb]
;B[lc]
;W[mb]C[ended up pretty good for white.]
)(;W[ir]LB[kr:1]LB[gs:4]LB[hs:5]LB[is:3]LB[js:2]C[here you can save, three lives to two.]
))(;B[ir]C[this is better for black to actually capture.]
;W[hr]
;B[hs]
))(;W[hr]C[this move.]
;B[er]
;W[gs]
;B[dq]
(;W[ep]C[this won't work.]
;B[dp]
;W[eo]
;B[dn]C[maybe you could see something like this?]
)(;W[dr]C[try here?]
(;B[ep]
(;W[es]
;B[cr]
;W[eq]C[this kind of ko.]
)(;W[dp]LB[hq:A]LB[gr:B]LB[ir:C]LB[hs:C]LB[is:C]C[even just here. A group should be alive. Probably eyes at B and one of C.]
))(;B[es]
;W[dp]C[not going ot work.]
))))(;W[fp]
;B[pb]
;W[qb]
;B[nb]
;W[pa]
(;B[ne]
;W[mb]
)(;B[mb]
;W[lc]TR[jb]TR[kb]TR[jc]TR[kc]C[sometimes black can try something like this, but it doesn't look good for black at the moment. If black had an extra stone at the top maybe.]
)))(;W[od]
;B[nc]
;W[nb]C[this looks a bit complicated but maybe its good for white?]
))(;W[lp]
;B[jr]
;W[op]
;B[oq]
;W[pp]
;B[pn]
;W[qn]
(;B[po]
;W[qo]
;B[qm]
(;W[oo]
)(;W[qq]C[Maybe this is better.]
))(;B[qm]
(;W[po]
)(;W[qq]
;B[po]
;W[oo]
(;B[qp]
;W[qo]
)(;B[qo]
;W[qp]
)))))(;W[lp]
(;B[lq]C[I'd say the ai doesn't play here because it gives white more forcing moves.]
;W[mq]
;B[kr]
;W[op]
;B[nq]
;W[oq]
;B[nr]C[like this maybe.]
)(;B[jr]C[so it plays here.]
;W[po]TR[qm]TR[rm]TR[qn]TR[rn]TR[qo]TR[ro]TR[qp]TR[rp]C[trying to get into the open space on the side to make an eye]
(;B[qm]
)(;B[qp]
(;W[pm]
(;B[on]
;W[oo]
;B[ol]
;W[oq]
;B[op]
;W[pp]
;B[nq]
;W[qq]
;B[or]
;W[rp]
)(;B[ol]
;W[on]
;B[qn]
;W[pl]
;B[ok]
;W[pn]
))(;W[oq]
)))))(;W[on]
;B[pm]
;W[pn]TR[qn]TR[rn]TR[qo]TR[ro]TR[qp]TR[rp]C[aim for the empty space to try make an eye.]
;B[qm]TR[op]TR[nq]C[maybe some cut can work here. My guess is white doesn't get killed if the ai plays with the winrate at 90%. (I've some examples of white trying to live)]
)(;W[kq]C[I'd say the idea of this move is to make a bit of shape and if black ignores.]
(;B[on]
;W[jr]
(;B[kr]
;W[mp]
;B[no]
;W[lr]
;B[kp]
;W[lq]TR[lp]C[Maybe something like this? technically connected.]
)(;B[kp]
;W[lp]
;B[jp]
;W[kr]C[connect like this.]
))(;B[kr]
;W[on]
;B[pm]
;W[pn]
;B[qm]
;W[op]
;B[oq]
;W[nq]
(;B[mq]
;W[no]
;B[mp]
;W[pp]TR[oo]C[second eye.]
)(;B[oo]
;W[mp]
;B[pp]
;W[no]
;B[mq]
(;W[op]C[ko looks good.]
)(;W[lp]C[white could live here.]
)))))(;W[on]LB[ln:A]C[making a bit more space to live. A stone is already captured.]
(;B[ko]
;W[mo]C[still have an eye.]
)(;B[mo]C[It feels like a move like this should be a worry.]
;W[mn]
;B[ko]C[technically white's eye is temporarily false, but probably one of the two stones 2,4 and probably get captured.]
;W[kp]
;B[jo]
;W[mp]
;B[no]
;W[op]
)))(;B[on]
;W[no]LB[mn:A]C[should be an eye here.]
))(;W[po]SQ[ok]SQ[ol]SQ[om]TR[qm]TR[rm]TR[qn]TR[rn]TR[qo]TR[ro]TR[mp]TR[np]TR[qp]TR[rp]TR[mq]TR[nq]TR[mr]TR[nr]C[Bit more space over here still that white can maybe move to to try to live, or maybe run upward.]
)(;W[qo]
))(;B[gk]C[should be able to cut here.]
))(;B[gk]C[can get cut here and didn't achieve much.]
))(;W[gk]
))(;B[gk]
;W[gj]
(;B[hj]
;W[gl]
;B[hk]
;W[fl]
;B[gm]C[maybe.]
)(;B[fl]
;W[fi]
;B[ek]
;W[gi]C[not as good maybe.]
))(;B[gj]
;W[gk]
(;B[hk]
)(;B[ek]
;W[el]
;B[fl]
;W[ej]
;B[dk]C[probably doesn't work for white?]
(;W[dl]
;B[ck]
;W[cj]
;B[hk]
)(;W[hk]
;B[ij]
;W[ik]
))))(;W[fp]C[should save the 3 stones.]
;B[ep]
;W[eq]
(;B[eo]
;W[dp]
)(;B[dq]
;W[fr]
;B[dp]
;W[dr]
)))(;B[fp]C[black can capture the 3 stones.]
))(;W[fp]
;B[ep]
(;W[eq]
;B[dq]
;W[fr]
(;B[dp]
;W[dr]C[Maybe black is better off than the ai variation.]
)(;B[dr]
;W[dp]
;B[eo]
;W[cp]
))(;W[eo]TR[fo]TR[go]C[Actually threatens to capture the two triangle stones.]
(;B[eq]
;W[fn]
;B[gn]
;W[gm]
)(;B[gn]
(;W[dp]C[slightly better way to capture.]
;B[eq]
;W[dq]
;B[do]C[this move actually doesn't help black too much.]
;W[en]TR[gm]C[threaten to capture.]
;B[io]
)(;W[eq]
;B[dp]
;W[dq]
;B[en]LB[eo:B]LB[fq:A]C[Black would be better in this situation.]
)))))(;W[dp]MA[co]MA[fo]TR[dp]LB[ep:C]LB[fp:A]TR[gp]TR[cq]LB[eq:D]LB[fq:B]TR[gq]C[This is to try to keep the stones connected I think. (Black cut try to cut with A-D)

It also threatens to separate the x'd stones. ]
(;B[fp]
;W[fq]
;B[eq]
;W[ep]
)(;B[fq]
;W[fp]
;B[ep]
;W[eq]C[double atari.]
)(;B[ep]
;W[eq]
;B[fq]
;W[fp]
)(;B[eq]
;W[ep]
;B[fp]
;W[fq]
)))(;W[gn]C[Can still try to escape here.]
))(;B[gn]C[Groin pointed out black captures the two stones here.]
))(;W[gn]C[nearly have to try to escape here.]
))(;B[fp]
;W[gq]C[Kind of a free atari to get stronger.]
;B[gn]LB[hm:A]C[threatens to capture the two stones.]
;W[hm]
;B[fq]C[Might be tricky to save these three stones. 

(Anyway this fighting could be a bit tricky - probably fine not to worry about it too much)]
(;W[fr]
;B[er]
;W[gr]
;B[dq]
;W[fo]
)(;W[fo]
;B[fn]
;W[eo]
;B[gr]
;W[hr]
;B[fr]
;W[en]
(;B[fm]
)(;B[gl]C[it looks messy anyway...]
))))(;W[fp]C[I think this is just a bit more solid.]
(;B[ip]C[I think if black plays another move here]
;W[nc]C[white gets a big move up here.]
)(;B[nc]
;W[nb]
;B[mc]C[The ai comes back to finish here because white getting another move on top is big to reduce Black, and gain more points for White.]
;W[ip]C[And now white can come back and mess up black's plans a little here, or even come back to the right bottom side.]
;B[ho]
;W[iq]
;B[jp]
)))(;B[nc]
;W[nb]
;B[mc]
(;W[mb]
;B[lc]C[More modern idea.]
)(;W[rd]
;B[re]
;W[rc]
;B[qf]C[Older joseki where black is a bit stronger.]
)))(;W[ip]C[This atari just makes Black's move at g4 look a bit bad.]
;B[ho]
;W[iq]LB[jo:A]LB[jp:A]C[Either white can in here, and if black wanted to build points here it's not working.]
;B[jp]
;W[io]
;B[jo]
;W[hn]C[If black blocks it off, you could try cut like this]
;B[go]
;W[fp]LB[go:A]C[I'm not sure exactly how stronger players would play, seems like a fight.]
))(;W[po]TR[qk]LB[ql:3]LB[qm:2]LB[qn:1]TR[pq]C[The stones is already 3-space pincered, it's a very loose pincer, but it can be helpful to attack.

]
;B[qo]
;W[qn]
;B[qp]LB[pn:A]C[The AI doesn't connect here because you end up with three stones under attack and it's harder to sacrifice them (without losing more points)]
(;W[pn]LB[qk:A]C[In a normal type of joseki, again the black stone at A is blocking White.]
(;B[op]
)(;B[np]C[maybe here.]
))(;W[nn]LB[qn:B]LB[po:A]C[This is an example of playing lightly. So you might sacrifice some of the A,B stones but you can get a stronger group on the outside. (This is still tricky stuff for me to learn at the moment, I'm just throwing it in to give an idea why the ai plays the way it does)]
))(;W[qo]
;B[qp]
;W[po]
;B[np]
(;W[qm]C[white would be very cramped here say.]
)(;W[pl]LB[qo:A]C[I haven't even studied this enough, so I don't know all the useful variations, but low approaching at A looks tougher.]
)))(;B[cc]C[Black has a slightly easier time to try to live here.]
;W[cd]
;B[dc]
;W[ec]
;B[eb]
;W[fb]
;B[ed]
;W[fc]
;B[bd]
;W[be]
;B[bc]
(;W[cf]
;B[db]C[Part of this joseki https://online-go.com/joseki/27565]
)(;W[db]C[white could take this stone but the outside is a bit disconnected]
;B[cb]
;W[ea]
;B[ce]
;W[de]
;B[cf]LB[dd:B]LB[be:A]C[A,B separated.]
(;W[df]
;B[bf]
)(;W[bf]
;B[df]
;W[ee]
;B[bg]C[I think you can capture the two stones this way.]
)))(;B[po]C[sometimes black will continue to try make points on the side.]
))(;W[fc]
;B[cc]LB[bd:C]LB[cd:A]LB[be:B]C[here it's harder to live with the same move. Sometimes you see A,B,C played instead. https://online-go.com/joseki/778]
))