(;CA[utf-8]RU[Japanese]TC[3]TT[30]GM[1]FF[4]C[Up to move 24, this game is identical to game 22, in which Master shows a new way for White to invade the Chinese opening. Park stayed in the game much longer than most, but finally started to fall behind after White's invasion at 78 was successful. ]
AP[CGoban:3]SZ[19]ST[2]DT[2017-01-03]PC[The KGS Go Server at http\://www.gokgs.com/]
PB[maker]PW[Master]KM[6.5]TM[60]RE[W+1.50]MULTIGOGM[1]
;B[pd];W[pp];B[cd];W[dp];B[ic];W[qf];B[nd];W[qc];B[qd];W[rd];B[pc];W[rb];B[qb];W[rc]
;B[nq];W[qn];B[cn];W[fq];B[jp]TR[dj]C[When playing the Chinese opening it is most natural to have a stone at the marked point instead of using a move to play 15 and 19 on the lower side. The fuseki to 19 became popular for Black after Deepmind published 3 games in which AlphaGo played this opening against itself in 2016. I have added some variations for White's next move. ]
(;W[ec]C[Master chooses the low kakari, which was previously thought to be a bad move when Black has a stone at 5 on the upper side. ]
;B[dc]C[Extending is heavy (see var). ]
(;W[de]TR[dc]C[Locally this move is an overplay when Black has already played the marked stone. Pressing at 22 is a shape that Master seems to like so much that it wants to play it in almost any position. ]
;B[dd]C[White cannot cover immediately (see var). ]
(;W[id]C[Up to move 24 this game is the same as game 22 with Master against Chen Yaoye 9P (see var). ]
(;B[hd]C[Parks plays a hane on the left, the strongest fighting move. ];W[he];B[ge]
C[Black's double hane at 27 is another strong fighting move. ];W[gd];B[hc];W[ed]
TR[ee]C[By sacrificing some stones on the right, White has made 30 playable. Black cannot cut at the marked point. ]
;B[gf]C[Black threatens to cut (see var). ]
(;W[ce]C[White dares Black to cut (see var). ]
(;B[ee]C[Cutting at 33 is the strongest move, but Black's corner is in damezumari (see var). ]
(;W[db]C[34 is White's strongest move. ];B[bd];W[cb];B[eb];W[fb];B[fc]C[Black squeezes to capture the cutting stone at 28 (see var). ]
(;W[ea];B[fd];W[eb];B[be];W[cg];B[bf];W[ef];B[fe];W[bc]C[White lives in the corner. Now Black can capture the cutting stones (see var). ]
(;B[ci]C[Black 49 was a questionable move. ];W[ch]C[White 50 was a strong move that threatened the Black group in the upper left (see var). ]
(;B[cf];W[di];B[dg];W[cj]C[White gets good shape on the left side. The game is about even now. ]
;B[cp];W[cq];B[bq];W[co];B[bp]C[Does White push through or connect? (see var)]
(;W[bo]C[Pushing through here seems to be the better move in this case.];B[do];W[bn]
;B[dq];W[ep];B[dr];W[dn];B[oh]TR[do]C[I would want to invade on the lower side now (see var). ]
(;W[gn]TR[do]C[Master plays toward the center, erasing any potential for Black to save the marked stone while reducing Black's potential in the center. ]
;B[pr];W[qq];B[no];W[pl]C[Black has a choice of playing in the center or the right side (see var). ]
(;B[gi]C[Black 73 is a large point in the center. ];W[of];B[nf];W[mp]C[White 76 started what became the decisive attack. See two vars I added for Black's next move. ]
(;B[op]C[I can understand how Park would want to play here, as Black 77 made good shape and was the strongest fighting move, but it was an overplay in this position. ]
;W[mq]TR[np]C[With the forcing moves that Black can play on the right, Black 77 is better shape than connecting at the marked point (see var). ]
(;B[mo];W[lo];B[lp];W[kp]C[The usual tesuji is for Black to cut now (see var). ]
(;B[lq];W[kq];B[lr]C[White has two ways to play (see var). ]
(;W[ko];B[kr];W[jr];B[mr]TR[pl]C[The lower side exchange was a success for White, and now White has a good position. ]
;W[ij]C[Instead of diving into the Black moyo in the center White plays conservatively, offering for both sides to surround territory in the center. ]
;B[jq]C[White can escape with the one stone (see var). ]
(;W[jo]C[White plays safely, making miai of the lower side and the center. ];B[hq]
TR[jo][ko][lo]C[Black has regained the side territory, but it cost an extra move. White's marked stones shape a wall facing the center and are connected to White's left side group.]
;W[ih];B[ji];W[ii];B[fj];W[eh];B[fg];W[kg]C[White is winning now. As is often the case, Master played a high quality endgame until the last stages of the game, in which it lost a few points. ]
;B[qh];W[qj];B[pb];W[qg];B[qi];W[og];B[ng];W[nh];B[pj];W[qk];B[mh];W[ni];B[oi];W[nj]
;B[ok];W[ne];B[me];W[oe];B[mf];W[li];B[ld];W[ml];B[ol];W[rg];B[nm];W[hp];B[io];W[in]
;B[ho];W[gp];B[iq];W[jm];B[dk];W[ck];B[rl];W[pm];B[rj];W[rk];B[ra];W[re];B[ri];W[od]
;B[nc];W[pg];B[qr];W[sk];B[rq];W[rp];B[bi];W[bh];B[dh];W[bj];B[ei];W[dj];B[sr];W[mm]
;B[mn];W[on];B[nn];W[ln];B[ro];W[qp];B[sp];W[rn];B[fl];W[ke];B[jf];W[kf];B[jd];W[ip]
;B[lh];W[kh];B[oo];W[sn];B[so];W[qo];B[sq];W[rm];B[gb];W[gr];B[ir];W[gk];B[fk];W[gl]
;B[fn];W[fo];B[dl];W[cm];B[en];W[gh];B[fh];W[eo];B[cl];W[bl];B[je];W[ig];B[if];W[hg]
;B[hf];W[kd];B[kc];W[oc];B[ob];W[er];B[ad];W[ac];B[hj];W[hk];B[mi];W[mj];B[gm];W[hm]
;B[fm];W[ej];B[eg];W[hs];B[qa];W[pe];B[bg];W[ai];B[hr];W[is];B[js];W[gs];B[jg];W[jh]
;B[pq];W[ap];B[aq];W[ao];B[cr];W[ds];B[cs];W[es];B[om];W[pn];B[sh];W[sg];B[dm];W[ek]
;B[el];W[nk];B[lj];W[ki];B[gj];W[nl];B[pk];W[ph];B[pi];W[sb];B[sj];W[ql];B[rh];W[nb]
;B[mb];W[le];B[md];W[ag];B[af];W[ga];B[ha];W[ba];B[gg];W[hh];B[fa];W[ah];B[ga];W[ik]
;B[jr];W[gq])
(;W[ir];B[jo];W[km]TR[ij]C[The marked stone comes into play, giving White an advantage in this fight. ]))
(;W[kr];B[ko];W[ln];B[mr];W[iq];B[qh]LB[kn:A]C[Black can aim to escape with A, and this is not as good as the game for White. ]))
(;B[ko];W[lq];B[ln];W[jq];B[lp];W[kq];B[ip];W[iq]TR[pl][gn]C[White takes away the side territory. The two marked stones are well positioned for White to reduce Black's center while threatening the lower side Black group. ]))
(;B[po];W[qo];B[pq];W[qp];B[mo]LB[op:A][np:B][nr:C]C[This is similar to the actual game. The point I am trying to make here is that Black A is better shape than a connection at B, in that with the forcing exchange that Black can play on the right, White C is not a forcing move in this position. ]))
(;B[np];W[mq];B[mo];W[nr]C[White's hane underneath becomes the vital point to destroy Black's shape. This is not good for Black. ])
(;B[mq]C[Crawling to keep the side territory is correct. ];W[lp];B[lq];W[np];B[op]
C[2 vars for White's next move.]
(;W[oo];B[oq];W[on];B[qh]C[The game is still close and I cannot say who is leading. ])
(;W[oq];B[oo];W[or];B[po]C[Bad for White])))
(;B[qh];W[pb];B[ob];W[qa];B[qe];W[re];B[pf]TR[pl]C[With this var I have the feeling that Black is ahead. Black has reduced White's potential on the side and has a thick shape. ]))
(;W[lq];B[lp];W[kp];B[ko];W[kq];B[mp];W[jq];B[ip];W[iq];B[hp];W[hq];B[ln];W[jn]
;B[jo];W[pr];B[pm]LB[eo:A]C[I would be tempted to play this way with White, efficiently reducing the value of a Black play at A while scooping out the lower side territory. However, the comparison with the actual game is not easy, as Black's center is expanding in this var. ]))
(;W[do];B[bo];W[cr];B[cl]LB[of:A][lq:B]C[Locally this is not satisfactory for White, as Black has a good position on the left side. White now has sente to play at A or B, so it is still a difficult game. ]))
(;B[bi];W[di];B[dj];W[ej];B[dk];W[eh];B[bh]C[Connecting underneath is painful for Black. ]))
(;B[cf]C[Connecting is not good for White (see var). ]
(;W[dh];B[dg]C[Black should simply push through to capture the two cutting stones. Black has a thick position, and I think this looks good for Black. ])
(;W[df];B[dg];W[eg];B[dh];W[eh];B[di];W[ei];B[dj]C[Black profits on the side, and White has a heavy group. ])))
(;W[fd];B[gc];W[ea];B[fe];W[eb];B[df]TR[ce][de]LB[gd:A]C[if White plays this way to save the stone at A, Black will be able to capture the marked stones. This is good for Black. ]))
(;W[bd];B[db];W[ef];B[fe];W[bc];B[eb];W[ci]C[In this var White gives Black the upper side and takes a position on the left side. This is about even.]))
(;B[be];W[bf];B[bd];W[ef]LB[eb:A][gd:B][ie:C]C[If White can cover on the 3rd line with sente as in this var, this is good for White. Next White can force against the corner with A, thus connecting the stone at B. With the stone at B connected, White can aim to play at C to start a fight in the center later. ]))
(;W[ef];B[bf]C[Not good enough for White. ]))
(;B[jd];W[je];B[jc];W[ie];B[ee];W[le];B[lc];W[co];B[dn];W[cj]C[In this game against Chen Yaoye 9P, Master has forced Black into a low position on the upper side and I think this position already favors White. ]))
(;W[ed];B[ee]C[Good for Black. ]))
(;W[ed];B[df];W[he];B[ie];W[if];B[je]C[Black will surround the upper and left sides while attacking White. ]))
(;W[ed]C[White's high kakari is the usual play when entering the upper side. ];B[df]
;W[cc];B[bc];W[dc];B[bb];W[gc];B[ff];W[ge];B[fe];W[fd];B[hd];W[ib];B[jb];W[hb];B[jc]
;W[gd];B[dk];W[bp]C[White's high kakari and the following sequence is a joseki that has been played against the Chinese opening for decades. White's side group is fully alive, and I would be happy playing with White in this overall position. ])
(;W[dg]C[Playing this kakari from the side is also feasible for White (two vars). ]
(;B[ed];W[ck]C[White gets to pincer while extending on the left side. ])
(;B[di];W[ed];B[ee];W[fe];B[de];W[ff];B[fd];W[gd];B[fc];W[gc];B[eb];W[fb];B[ec]
;W[he];B[je];W[fh]C[This is about even. ]))
(;W[dj];B[dh];W[cp];B[dl];W[fj];B[gm];W[fh];B[df]C[In this running fight, Black will have opportunities to surround the upper side while attacking. ]))