(;FF[4]ST[0]GM[1]SZ[19]AP[GOWrite:3.0.15]CA[UTF-8]KM[7.5]GN[ ]OT[45 seconds Fischer]FG[259:]RU[AGA (Territory)]PW[Bruno Poltronieri]PM[2]PC[London Go Centre]RE[B+3.5]RO[2]DT[2022-08-21]EV[British Championship 2022]PB[Gaoge Wang]TM[6000.0];B[pd]C[The first game, reviewed in edition 201 of BGJ, was a close and intense battle, which ended up with Gaoge winning by 2.5 points. Below you will find commentary on the second game of the series.];W[dp];B[pq];W[dd];B[nc];W[qo];B[op];W[ql];B[fq];W[iq];B[cq]
;W[dq];B[cp];W[do];B[dr];W[er];B[cr]
(;W[eq];B[cn];W[lq];B[qp]
(;W[qf];B[ro];W[qd];B[qc];W[rc];B[qe];W[rd];B[pf];W[re];B[pe]
;W[qg];B[fc]
;C[Bruno played the same move as on the lower side - perhaps, one of his favorite josekis.]W[ic]
(;B[kc]
;LB[cf:A]C[A little slow move. It would be more natural for White to play at A.]W[ie];B[fr];W[fs]
(;LB[cf:A]C[This attachment is normally played when White has a stone at A.]B[dc];W[cc];B[cb];W[ec];B[db];W[ed];B[eb];W[bd];B[fd];W[fe];B[hd]
(;W[he];B[id]
(;W[jd];B[ge];W[gf];B[gd];W[je];B[ff];W[ee];B[gg];W[hf]
;C[A good result for Black - they gained around 15 points on the upper side while White still has to settle their group in the center of the board, separated by Black 57 and 59.]B[jc]
(;W[dg];B[fg];W[ih];B[ce];W[cd];B[dh];W[ch]
;C[Black 65 - 69 is a creative and strong combination, sealing White in on the left side.]B[cg];W[df];B[ci];W[bh];B[bi];W[eh];B[di];W[bg]
;C[The overall result of the struggle in the upper left is favorable for Black\: they made points on the upper and left sides, while the white group in the center of the board remains vulnerable.]B[fi];W[dn];B[cm];W[hn]
;C[Since Black has no weakness around, they can afford to play a move like this, reducing White's moyo on the lower side.]B[fn];W[el];B[gs];W[es];B[gm];W[ej];B[ei];W[gk];B[hm];W[in];B[dm]
;W[em];B[en];W[fp];B[ik];W[hj];B[ij];W[hi];B[bf];W[cf]
;C[White attacked Black as severely as they could, but Black managed to keep the situation under control. White ended up with a weak group in the center, too.]B[im];W[gh];B[fh];W[ld];B[lc];W[ki];B[jn]
(;W[jo];B[kn]
;W[io]C[You might understand  this move from the analysis elsewhere.];B[gp];W[fo];B[hg];W[ig];B[ii];W[hh]
;C[A little passive move. Black's central group is strong enough, a more active alternative would be an invasion at A on the right side, separating the triangled white stone.]TR[ql]LB[qj:A]B[ko];W[pi];B[lr]
(;W[kr]
;C[Since this move, Black is slightly ahead in the game and White doesn't have where to catch up.]B[mr];W[kp];B[go];W[gn];B[eo];W[ep];B[fm];W[gq];B[lf];W[dk];B[ck]
;W[le];B[mf];W[kg];B[lh];W[kh];B[lp];W[kq];B[lk];W[mh];B[mq]
;W[lo];B[mp];W[ml];B[ll];W[mn];B[mm];W[nm];B[lm];W[qn];B[rn]
;W[rm];B[pm];W[qm];B[om];W[nl];B[on];W[nn];B[mj];W[nj];B[mi]
;W[lg];B[ni];W[oj];B[mg];W[jf];B[ag];W[ah];B[ai];W[af];B[qb]
;W[rb];B[bb];W[qa];B[ob];W[oo];B[po];W[no];B[pn];W[nh];B[oh]
;W[ng];B[nf];W[og];B[pg];W[li];B[of];W[lh];B[hk];W[fj];B[ph]
;W[qh];B[co];W[gr];B[oi];W[ol];B[pj];W[qi];B[pl];W[pk];B[pp]
;W[sn];B[rp];W[qj];B[gi];W[gj];B[md];W[ds];B[cs];W[dl];B[cl]
;W[dj];B[eg];W[cj];B[bj];W[me];B[ne];W[np];B[nq];W[mk];B[lj]
;W[kj];B[kk];W[oa];B[na];W[pa];B[pb];W[ra];B[ac];W[ad];B[so]
;W[sm];B[ji];W[jh];B[jj];W[gl];B[hl];W[bc];B[ab];W[kd];B[ln]
;W[mb];B[mc];W[nb];B[lb];W[ma];B[la];W[na];B[mo];W[ls];B[ms]
;W[ks];B[fl];W[fk];B[kf];W[ef]
;B[ke]C[Similarly to the first game of the series, Gaoge was ahead since the early stage and managed to keep a small lead. This time, however, she seemed to control the game better, giving less chances to Bruno.

Congratulations to Gaoge for the British Championship!])
(;FG[259:]VW[ai][bi][ci][di][ei][fi][gi][hi][ii][ji][ki][li][mi][ni][oi][pi]
[qi][ri][si][aj][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj]
[nj][oj][pj][qj][rj][sj][ak][bk][ck][dk][ek][fk][gk][hk][ik][jk]
[kk][lk][mk][nk][ok][pk][qk][rk][sk][al][bl][cl][dl][el][fl][gl]
[hl][il][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][am][bm][cm][dm]
[em][fm][gm][hm][im][jm][km][lm][mm][nm][om][pm][qm][rm][sm][an]
[bn][cn][dn][en][fn][gn][hn][in][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][lo][mo][no]
[oo][po][qo][ro][so][ap][bp][cp][dp][ep][fp][gp][hp][ip][jp][kp]
[lp][mp][np][op][pp][qp][rp][sp][aq][bq][cq][dq][eq][fq][gq][hq]
[iq][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq][ar][br][cr][dr][er]
[fr][gr][hr][ir][jr][kr][lr][mr][nr][or][pr][qr][rr][sr][as][bs]
[cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
[ss]PM[2]MN[1];C[Black 119 in the game was the last complicated moment of this game. Once again, the aji on the lower side doesn't let White play agressively, as shown in this diagram.]W[mr];B[go];W[gn];B[eo];W[ep];B[fm];W[gq];B[jp];W[ip]
;B[kr];W[kq];B[mq];W[nr];B[jq];W[jr]
;C[After the preparation (Black 2 - 8), Black 10 breaks White's shape on the lower side.]B[kp]))
(;FG[259:]VW[ai][bi][ci][di][ei][fi][gi][hi][ii][ji][ki][li][mi][ni][oi][pi]
[qi][ri][si][aj][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj]
[nj][oj][pj][qj][rj][sj][ak][bk][ck][dk][ek][fk][gk][hk][ik][jk]
[kk][lk][mk][nk][ok][pk][qk][rk][sk][al][bl][cl][dl][el][fl][gl]
[hl][il][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][am][bm][cm][dm]
[em][fm][gm][hm][im][jm][km][lm][mm][nm][om][pm][qm][rm][sm][an]
[bn][cn][dn][en][fn][gn][hn][in][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][lo][mo][no]
[oo][po][qo][ro][so][ap][bp][cp][dp][ep][fp][gp][hp][ip][jp][kp]
[lp][mp][np][op][pp][qp][rp][sp][aq][bq][cq][dq][eq][fq][gq][hq]
[iq][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq][ar][br][cr][dr][er]
[fr][gr][hr][ir][jr][kr][lr][mr][nr][or][pr][qr][rr][sr][as][bs]
[cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
[ss]PM[2]MN[1];C[It's tempting to cut off Black's stone, especially that White is slightly behind in the game, but White's position on the lower side is too thin. This is a complicated moment, but let's try to figure out what happens if White plays here.]W[jm];FG[259:]VW[ai][bi][ci][di][ei][fi][gi][hi][ii][ji][ki][li][mi][ni][oi][pi]
[qi][ri][si][aj][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj]
[nj][oj][pj][qj][rj][sj][ak][bk][ck][dk][ek][fk][gk][hk][ik][jk]
[kk][lk][mk][nk][ok][pk][qk][rk][sk][al][bl][cl][dl][el][fl][gl]
[hl][il][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][am][bm][cm][dm]
[em][fm][gm][hm][im][jm][km][lm][mm][nm][om][pm][qm][rm][sm][an]
[bn][cn][dn][en][fn][gn][hn][in][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][lo][mo][no]
[oo][po][qo][ro][so][ap][bp][cp][dp][ep][fp][gp][hp][ip][jp][kp]
[lp][mp][np][op][pp][qp][rp][sp][aq][bq][cq][dq][eq][fq][gq][hq]
[iq][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq][ar][br][cr][dr][er]
[fr][gr][hr][ir][jr][kr][lr][mr][nr][or][pr][qr][rr][sr][as][bs]
[cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
[ss]PM[2]MN[1];B[gp]
(;W[gq];B[gr]
(;W[hq];B[ep];W[eo]
;LB[hk:A][kn:B]C[White carries too big responsibility in this ko fight. Meanwhile, Black has numerous local ko threats, for example A and B.]B[fo])
(;FG[259:]VW[ai][bi][ci][di][ei][fi][gi][hi][ii][ji][ki][li][mi][ni][oi][pi]
[qi][ri][si][aj][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj]
[nj][oj][pj][qj][rj][sj][ak][bk][ck][dk][ek][fk][gk][hk][ik][jk]
[kk][lk][mk][nk][ok][pk][qk][rk][sk][al][bl][cl][dl][el][fl][gl]
[hl][il][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][am][bm][cm][dm]
[em][fm][gm][hm][im][jm][km][lm][mm][nm][om][pm][qm][rm][sm][an]
[bn][cn][dn][en][fn][gn][hn][in][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][lo][mo][no]
[oo][po][qo][ro][so][ap][bp][cp][dp][ep][fp][gp][hp][ip][jp][kp]
[lp][mp][np][op][pp][qp][rp][sp][aq][bq][cq][dq][eq][fq][gq][hq]
[iq][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq][ar][br][cr][dr][er]
[fr][gr][hr][ir][jr][kr][lr][mr][nr][or][pr][qr][rr][sr][as][bs]
[cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
[ss]PM[2]MN[1];W[go];B[hq];W[fo]
;C[If White tries to resist this way, their position on the lower side falls apart.]B[ip]))
(;FG[259:]VW[ai][bi][ci][di][ei][fi][gi][hi][ii][ji][ki][li][mi][ni][oi][pi]
[qi][ri][si][aj][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj]
[nj][oj][pj][qj][rj][sj][ak][bk][ck][dk][ek][fk][gk][hk][ik][jk]
[kk][lk][mk][nk][ok][pk][qk][rk][sk][al][bl][cl][dl][el][fl][gl]
[hl][il][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][am][bm][cm][dm]
[em][fm][gm][hm][im][jm][km][lm][mm][nm][om][pm][qm][rm][sm][an]
[bn][cn][dn][en][fn][gn][hn][in][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][lo][mo][no]
[oo][po][qo][ro][so][ap][bp][cp][dp][ep][fp][gp][hp][ip][jp][kp]
[lp][mp][np][op][pp][qp][rp][sp][aq][bq][cq][dq][eq][fq][gq][hq]
[iq][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq][ar][br][cr][dr][er]
[fr][gr][hr][ir][jr][kr][lr][mr][nr][or][pr][qr][rr][sr][as][bs]
[cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
[ss]PM[2]MN[1];W[fo]
;LB[gn:A]B[go]C[White 1 - the same move as White played later in the game - doesn't work now, since White can't cut at A.
])
(;FG[259:]VW[ai][bi][ci][di][ei][fi][gi][hi][ii][ji][ki][li][mi][ni][oi][pi]
[qi][ri][si][aj][bj][cj][dj][ej][fj][gj][hj][ij][jj][kj][lj][mj]
[nj][oj][pj][qj][rj][sj][ak][bk][ck][dk][ek][fk][gk][hk][ik][jk]
[kk][lk][mk][nk][ok][pk][qk][rk][sk][al][bl][cl][dl][el][fl][gl]
[hl][il][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][am][bm][cm][dm]
[em][fm][gm][hm][im][jm][km][lm][mm][nm][om][pm][qm][rm][sm][an]
[bn][cn][dn][en][fn][gn][hn][in][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][lo][mo][no]
[oo][po][qo][ro][so][ap][bp][cp][dp][ep][fp][gp][hp][ip][jp][kp]
[lp][mp][np][op][pp][qp][rp][sp][aq][bq][cq][dq][eq][fq][gq][hq]
[iq][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq][ar][br][cr][dr][er]
[fr][gr][hr][ir][jr][kr][lr][mr][nr][or][pr][qr][rr][sr][as][bs]
[cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][ns][os][ps][qs][rs]
[ss]PM[2]MN[1];W[gr];B[kn];W[km]
;C[If White simply tries to link up with their two stones on the lower side, Black kills the marked cutting stones.]MA[hn][in]B[io])))
(;FG[259:]PM[2]MN[1];W[fg];B[dn];W[en];B[em];W[fn];B[ci];W[ef]
;C[If White captures the cutting black stone, Black can use its aji and extend on the left side. It would be impossible for White to make full use of the thickness they make in the center of the board.]B[dl]))
(;FG[259:]PM[2]MN[1];W[ge];B[jd]
;C[For White it was better to give up a stone on the upper side this way, extending a moyo on the left and lower sides.

It's a pity that there is an aji of a cutting point at A - the triangled move was better to make one space to the right.]TR[bd]LB[ee:A]W[cl]))
(;FG[259:]VW[aa][ba][ca][da][ea][fa][ga][ha][ia][ja][ka][la][ma][na][oa][pa]
[qa][ra][sa][ab][bb][cb][db][eb][fb][gb][hb][ib][jb][kb][lb][mb]
[nb][ob][pb][qb][rb][sb][ac][bc][cc][dc][ec][fc][gc][hc][ic][jc]
[kc][lc][mc][nc][oc][pc][qc][rc][sc][ad][bd][cd][dd][ed][fd][gd]
[hd][id][jd][kd][ld][md][nd][od][pd][qd][rd][sd][ae][be][ce][de]
[ee][fe][ge][he][ie][je][ke][le][me][ne][oe][pe][qe][re][se][af]
[bf][cf][df][ef][ff][gf][hf][if][jf][kf][lf][mf][nf][of][pf][qf]
[rf][sf][ag][bg][cg][dg][eg][fg][gg][hg][ig][jg][kg][lg][mg][ng]
[og][pg][qg][rg][sg][ah][bh][ch][dh][eh][fh][gh][hh][ih][jh][kh]
[lh][mh][nh][oh][ph][qh][rh][sh]PM[2]MN[1];W[id];B[ge];W[gf];B[ff];W[ee];B[hf];W[gg]
;C[Black 49 in the game was a clever move. If White tries to protect from the cutting point, Black breaks through towards the center - bad for White, since the three white stones on the upper side are now under attack.]B[he]))
(;FG[259:]VW[aa][ba][ca][da][ea][fa][ga][ha][ia][ja][ka][la][ma][na][oa][pa]
[qa][ra][sa][ab][bb][cb][db][eb][fb][gb][hb][ib][jb][kb][lb][mb]
[nb][ob][pb][qb][rb][sb][ac][bc][cc][dc][ec][fc][gc][hc][ic][jc]
[kc][lc][mc][nc][oc][pc][qc][rc][sc][ad][bd][cd][dd][ed][fd][gd]
[hd][id][jd][kd][ld][md][nd][od][pd][qd][rd][sd][ae][be][ce][de]
[ee][fe][ge][he][ie][je][ke][le][me][ne][oe][pe][qe][re][se][af]
[bf][cf][df][ef][ff][gf][hf][if][jf][kf][lf][mf][nf][of][pf][qf]
[rf][sf][ag][bg][cg][dg][eg][fg][gg][hg][ig][jg][kg][lg][mg][ng]
[og][pg][qg][rg][sg][ah][bh][ch][dh][eh][fh][gh][hh][ih][jh][kh]
[lh][mh][nh][oh][ph][qh][rh][sh]PM[2]MN[1];B[cc];W[dc];B[cd];W[de];B[db];W[eb];B[cb];W[fb]
;C[With the marked exchange, the san-san invasion looks even better.]TR[ie][kc]B[cf]))
(;FG[259:]VW[aa][ba][ca][da][ea][fa][ga][ha][ia][ja][ka][la][ma][na][oa][pa]
[qa][ra][sa][ab][bb][cb][db][eb][fb][gb][hb][ib][jb][kb][lb][mb]
[nb][ob][pb][qb][rb][sb][ac][bc][cc][dc][ec][fc][gc][hc][ic][jc]
[kc][lc][mc][nc][oc][pc][qc][rc][sc][ad][bd][cd][dd][ed][fd][gd]
[hd][id][jd][kd][ld][md][nd][od][pd][qd][rd][sd][ae][be][ce][de]
[ee][fe][ge][he][ie][je][ke][le][me][ne][oe][pe][qe][re][se][af]
[bf][cf][df][ef][ff][gf][hf][if][jf][kf][lf][mf][nf][of][pf][qf]
[rf][sf][ag][bg][cg][dg][eg][fg][gg][hg][ig][jg][kg][lg][mg][ng]
[og][pg][qg][rg][sg][ah][bh][ch][dh][eh][fh][gh][hh][ih][jh][kh]
[lh][mh][nh][oh][ph][qh][rh][sh]PM[2]MN[1];B[cc];W[dc];B[cd];W[de];B[db];W[eb];B[cb];W[fb];B[cf]
;LB[qb:A]C[With Black 35 in the game Gaoge most probably wanted to avoid this follow-up. However, even though Black is now forced to play A in order to protect their group, this is a playable position for both sides.]W[lc]))
(;FG[259:]VW[jj][kj][lj][mj][nj][oj][pj][qj][rj][sj][jk][kk][lk][mk][nk][ok]
[pk][qk][rk][sk][jl][kl][ll][ml][nl][ol][pl][ql][rl][sl][jm][km]
[lm][mm][nm][om][pm][qm][rm][sm][jn][kn][ln][mn][nn][on][pn][qn]
[rn][sn][jo][ko][lo][mo][no][oo][po][qo][ro][so][jp][kp][lp][mp]
[np][op][pp][qp][rp][sp][jq][kq][lq][mq][nq][oq][pq][qq][rq][sq]
[jr][kr][lr][mr][nr][or][pr][qr][rr][sr][js][ks][ls][ms][ns][os]
[ps][qs][rs][ss]PM[2]MN[1];LB[or:A]C[Despite looking slow, this move is playable - it strengthens White's group and prepares to attack Black's corner, for example at A.]W[po]))
(;FG[259:]VW[al][bl][cl][dl][el][fl][gl][hl][il][jl][kl][am][bm][cm][dm][em]
[fm][gm][hm][im][jm][km][an][bn][cn][dn][en][fn][gn][hn][in][jn]
[kn][ao][bo][co][do][eo][fo][go][ho][io][jo][ko][ap][bp][cp][dp]
[ep][fp][gp][hp][ip][jp][kp][aq][bq][cq][dq][eq][fq][gq][hq][iq]
[jq][kq][ar][br][cr][dr][er][fr][gr][hr][ir][jr][kr][as][bs][cs]
[ds][es][fs][gs][hs][is][js][ks]PM[2]MN[1];C[The AI prefers this extension over White 18 in the game. You will barely see the move from the game in modern professional games, although it used to be a popular joseki in the pre-AI era.]W[fr];B[cn]))
