
(;ST[2]AP[GOWrite:3.1.3]SZ[19]GM[1]FF[4]CA[UTF-8]GN[ ]PM[2]TM[11100]PW[Bruno Poltronieri]RU[Japanese]KM[6.50]RO[1]FG[259:]DT[2023-08-26]BR[5d]PC[The KGS Go Server at http\://www.gokgs.com/]PB[Ho Yeung Woo]EV[British Go Championship]RE[B+Resign]WR[4d]
;B[pd];W[dp];B[pp];W[dd];B[cq];W[cp];B[dq];W[ep];B[fq];C[ ]W[qf]
(
;B[gr];W[nc];B[nd];W[md];B[ne]
(
;W[pc];B[qc];W[oc];B[qd];W[qi];B[kd];W[me];B[ph];W[qh];B[pf];W[lc];B[pg];W[re];B[kc]
;C[The variant played out in the upper-right corner is a modern joseki.]W[mg]
;B[qk];W[pi];B[nh]
(
;C[This move is slow - White can't cut Black's shape after the next move, see the diagram.]W[oi]
;B[mh]
(
;W[lg];B[gd]
(
;W[oh];B[ng];W[nf];B[og];W[ki];B[mj];W[ok];B[qm];W[ml];B[lk];W[ll];B[kk];W[kl];FG[259:]PM[2];B[jk];W[jf]
(
;B[dc];W[ec];B[ed];W[cc];B[db];W[fd];B[ee]
(
;W[gc];B[fe];W[fc]
(
;B[cb];W[hd];B[ge];W[ic];B[cf];W[cg]
(
;B[dg];W[dh];B[ch];W[bg];B[bh];W[cd];B[bc];W[bd];B[bb];W[df];B[eg];W[bf];B[de];W[ce]
(
;B[ae]
(
;C[Here was the culmination of the struggle in this game - one of the sides was about to die, no compromise! In such moments, emotions of the players are heated and it's hard to play with a cool mind. Bruno Poltronieri had a great chance but he missed it in the game.]W[ci]
;B[bi];W[cj];B[bj];W[ck];B[bk]
(
;W[cl]
;C[This atari is too painful for White\; it's hard to recover after it.]B[eh]
;W[di];B[bl];W[bm]
;C[Black not only kills White on the left, but also creates an aji with this cut, so White was forced to protect at 100. That's a success for Ho Yeung Woo.]B[cm]
;W[bn];B[ad];W[ah];B[be];W[fj];FG[259:]PM[2];B[jl];W[jm];B[im];W[in];B[jn];W[km];B[hn];W[io];B[hm];W[jo]
;C[Black started the last fight here. Even though White anyway didn't have any chance in it, there was no need to complicate the situation - it would be enough to occupy a big point, for example A.]LB[oq:A]B[jh]
;W[ji];B[ii];W[ih];B[ig];W[hh];B[jg];W[hg];B[if];W[hf];B[he];W[ie];B[je];W[id];B[kf]
;C[Perhaps a timesuji.]W[ef]
;B[ff];W[kg]
;C[A clever attachment. Ho Yeung Woo must have aimed at it when he played Black 111 earlier.]B[ib]
;W[jb];B[hb];W[jc];B[kb];W[ia];B[ha];W[ja];B[eb];W[kh];B[jf];W[fa];B[fb];W[gb];B[hi];W[gi];B[hk];W[fg]
;C[This was an exciting game with a fierce battle on the left side deciding its outcome. Let's look forward to seeing the next game of the series!]B[cf]
)
(
;MN[1]FG[259:]PM[2]
;C[Instead of White 90 in the game, Bruno had a last chance to extend here.]W[eh]
;B[ad];W[fg];B[ef];W[gf];B[be]
;C[White dies on the left side, but he can launch an attack on the group in the middle and extend at A later to play for points. This would still be a game.]LB[cl:A]W[im]
)

)
(
;FG[259:]MN[1]PM[2]VW[aa:jk]
;C[White's extension would be a strong move. Let's look at a few variants.]W[eh]
(
;MN[1]FG[259:]PM[2]
;C[Black's can't afford this jump, the group above dies.]B[cj]
;W[fg];B[ef];W[gf]
)
(
;FG[259:]MN[1]PM[2]VW[aa:jk]
;B[fh];W[dj];B[bj];W[fg];B[ef];W[gf];B[gg];W[he];B[cf]
;C[Black can't win this ko fight, he has no ko threat of necessary value.]W[ci]
)

(
;FG[259:]MN[1]PM[2]VW[aa:js]
;B[fg];W[fh];B[gh];W[gi];B[hh];W[dj];B[bj];W[bk];B[bi]
;C[Black's stones on the left die.]W[cj]
)

)

)
(
;FG[259:]MN[1]PM[2]VW[aa:jk]
;B[cj];W[ae];B[ag];W[eb];B[ac];W[aa];B[da];W[ba];B[ef];W[ea];B[ad];W[ab];B[ca];W[aa]
;C[If Black omits 83 in the game, a ko fight in the corner follows. Since this was Black's corner, it would be a disaster for Black.]B[cf]
)

)
(
;C[ ]FG[259:]MN[1]PM[2]VW[aa:jh]
;C[White 68 exploiting the aji in the upper-left corner is a good move. Black's response, however, was too careless! It's better to play a safe move shown in this diagram.]B[bf]
)

)
(
;FG[259:]MN[1]PM[2]VW[aa:sm]
;B[hc];W[hd];B[ge];W[hb];B[ic];W[cb];B[de];W[cd]
;C[After White 60 and 62 in the game, Black can't draw back anymore. It would be too submissive to play as in this diagram.]B[ie]
)

)
(
;FG[259:]MN[1]PM[2]VW[aa:sm]
;W[fc];B[fe];W[cb];B[de];W[cd];B[gc];W[eb];B[fb];W[da]
;C[When Black played a cross-cut 55 in the game, this must have been his initial idea - trading two stones for the thickness. In the game White resists, demonstrating fighting spirit.]B[hf]
)

)
(
;FG[259:]MN[1]PM[2]VW[aa:sg]
;B[id];W[fc];B[gc]
;C[Black 53 in the game is an active way of protecting a group on the upper side. A passive defense shown in this diagram is less interesting.]W[cf]
)

)
(
;FG[259:]MN[1]PM[2]VW[ja:sr]
;W[qn]
;C[As long as White has a potentially weak group on the right side, it's hard to invade between the black stones. Black would fight aiming at eliminating White's life base with A.]LB[rj:A]B[pm]
)

(
;MN[1]FG[259:]PM[2]
;W[ok]
;C[White's attack in the center in the game didn't bring any clear profit. Instead, White could protect his group with a one-space jump and play a big move next, for example A or B.]LB[ec:A][qq:B]B[qm]
)

)
(
;FG[259:]MN[1]PM[2]VW[ia:sl]
;W[nf];B[ng];W[pe];B[qe];W[oe];B[qg];W[rf]
;C[White's three stones die.]B[rg]
)

)
(
;FG[259:]MN[1]PM[2]VW[ia:ss]
;W[pk];B[pl];W[ok]
;C[A more active alternative to White 34 in the game. White can cut at A after Black protects his group in the center.]LB[ql:A]B[mh]
)

)
(
;FG[259:]MN[1]PM[2]VW[ka:sh]
;C[ ]W[qc];B[oc];W[qd]
;C[This used to be a popular joseki in the pre-AI era. Nowadays, however, you can rarely see it in the professional games, since the AI considers the result good for Black.]B[mc]
)

)
(
;B[nc]
;FG[259:]MN[1]PM[2]VW[an:is]
;W[eq];B[er];W[dr];B[cr];W[fr];B[ds]
;C[White 10 in the game aims at this ladder.]W[gq]
)

)
