(;GM[1]FF[4]SZ[19]AP[SmartGo:2.8.3.0]CA[shift_jis]
GN[SAWMG 2012]
PW[Jieun PARK]WR[9P]
PB[Joanne MISSINGHAM]BR[6P]
EV[SAWMG]RO[4]
DT[20121214]
KM[7.5]
RE[B+1.5]
US[www.cyberoro.com]ST[2]WT[Korea]BT[Chinese Taipei]
AN[Michael Redmond]
FG[259:]PM[2]
C[This is a critical game because whoever loses will be knocked out; this is a double-elimination tournament and both players have one loss.

Joanne Missingham, born in Australia,lived in California for a few years and now represents Taipei; she's also the official Go Ambassador at the SAWMG.

Park Jieun was one of the first Korean female players to really challenge Rui Naiwei when Rui was playing in Korea. So she's been one of the top Korean players for quite a while now, and she'd be favored to win this match.]
MU[1];B[pd];W[dd];B[qp];W[dp];B[fq];W[cn];B[lq];W[qj];B[qf];W[qm];B[pn];W[ro]
;B[pm];W[qo];B[po];W[rp]LB[qq:A]
C[If black plays at A, this will be the same opening as we saw in the Chen-Park game in Round 3 (posted on the AGA website at www.usgo.org).]
;B[qn]
C[This move is being studied throughout Asia recently; it leads to a trade of white terr for black thickness, as we'll see. However, it's not yet completely evaluated.]
;W[qq];B[pp];W[pq];B[oq];W[or];B[nr]
C[The double hane here is a key move that puts pressure on W's corner stones]
;W[nq];B[op]
C[the var at B (the atari against 23) is not good for W ]
(;W[pr]
C[If black ataris 24 (see var), W can connect underneath]
(;B[ql];W[mr];B[mq];W[np];B[no];W[mp];B[lo]
C[this whole var has been seen before in pro play, so some people are probably calling it a joseki but I'm not quite sure yet myself]
;W[jd];B[ld]LB[df:A][kf:B]
C[if white plays A, black will play B];W[jf];B[cf];W[cd];B[ee];W[fc];B[di]
;W[ck];B[lf]
C[A quick count shows that white has about 40 points of territory, and black has virtually none, but has a big moyo. This establishes the tone of the game, as white will try to invade or reduce black's moyo, while black works to use attacks to catch up on territory. ]
;W[qc];B[pc];W[qg];B[rg];W[rf]
C[this is a good example of the proverb that says to play diagonally when trying to make sabaki (shape). ]
;B[re];W[pf];B[sf];W[qe]LB[qd:A][qh:B][rf:C]
C[black must choose between fighting a ko at A or B or connecting at C];B[rf]
LB[qd:A][rq:B]
C[I would have been more eager to play the ko at A since black has a nice ko threat at B, but connecting is a steady move]
;W[rm]LB[rn:A][rl:B]
C[If black plays at A, white can turn at B to begin making eyes for the side group]
;B[rl]LB[rn:A]
C[now white has created the potential for profit later, with a move at A. This could work well if she later decides to sacrifice the side group. ]
;W[eg];B[dg];W[lh]LB[mh:A]
C[A play at A, to surround the right side, is probably too small a scale]
;B[kg];W[pg];B[pe];W[ng]LB[lh:A][kg:B]
C[now we can see that the A-B exchange is important to getting white out into the center]
;B[oj];W[ni];B[dr];W[cq];B[ie];W[id];B[fo];W[ns];B[lp];W[kr];B[jq];W[me]
;B[md];W[pb];B[ob];W[nj]
C[white now has more than 40 points, while black has about 20 (upper right corner), so including komi, black needs almost 30 points to catch up. So her strategy revolves around profiting from attacking the center white group.]
;B[cm];W[bm];B[dn];W[co]
C[this pushes white down and also looks at attacking white in the center]
;B[pj];W[pi];B[kk];W[ol];B[nk];W[mk];B[nl];W[lk];B[nm];W[kh];B[kj];W[ek]
C[this move denies black a large territory in the lower center of the board]
;B[jh];W[jg];B[le];W[ji];B[ih];W[ki];B[lj];W[ii];B[hh]
C[this would be a good time for white to force on the right side (see var)]
(;W[he];B[hi];W[ik];B[gk];W[gl];B[ge];W[hd];B[fl];W[hl];B[fk];W[mj];B[kl]
;W[fm];B[el]
C[white can still play the sequence on the right (see var)]
(;W[jm];B[rh]
C[Up until this point, white seemed to have a lead; this move changes the flow of the game slightly in black's favor, as it reduces white's eye-space and is a territorial gain as well. ]
;W[rb];B[rd];W[ho];B[hq];W[cj];B[dm];W[cl];B[be];W[bd];B[kc];W[jb];B[jc]
;W[ib];B[ci];W[nb];B[oc];W[lb];B[kb];W[ka];B[na];W[gf];B[ff];W[gg];B[fg]
;W[cr];B[qh];W[ph];B[qi];W[rn];B[ed];W[ec];B[ad];W[ac];B[ae];W[bc];B[gd]
;W[gc];B[ic];W[hc];B[gh]
C[white still has a slight lead if she plays as in the variation]
(;W[df];B[de];W[ce];B[bg];W[fd];B[hb];W[gb];B[mb];W[ej];B[ef];W[fe];B[fi]
;W[ag]
C[a hane at B (A12) seems natural but it actually loses a point for black]
(;B[bf];W[bj];B[lr];W[ls];B[eq];W[oe];B[ne];W[rc];B[qa];W[ir];B[jr];W[js]
;B[iq]
C[the variation is slightly better for white, though I'm not sure it would change the game's outcome at this point. With some 70 moves left to play, this is a difficult endgame problem]
(;W[ln];B[lm];W[mn];B[mo];W[nf];B[mf];W[pk];B[ok];W[kn];B[ll];W[gn];B[nr]
;W[nq];B[kq];W[ks];B[jo];W[in];B[jl];W[il];B[oi];W[oh];B[cs];W[bs];B[ds]
;W[dq];B[er];W[ar];B[hr];W[sl];B[sk];W[sm];B[rj];W[is];B[hs];W[ms];B[br]
;W[bq];B[lc];W[bi];B[bh];W[ah];B[fn];W[of];B[if]
C[white would love to capture these two stones but can't; see variation.

After this, the remaining endgame is fairly straightforward -- at this level, a 30-move endgame is relatively simple -- and black's 1.5 point win, sending Missingham on to the next round, is secure. 

No further comments. ]
(;W[lg];B[kf];W[je];B[hf];W[nn];B[od];W[li];B[np];W[nr];B[go];W[hp];B[gp]
;W[hj];B[mg];W[mh];B[gj];W[on];B[om];W[ep];B[jn];W[km];B[em];W[gm];B[eo]
;W[ei];B[eh];W[ha];B[la];W[ja];B[io];W[ko];B[ip];W[hn];B[kp];W[dj];B[dl]
;W[ge];B[mm];W[im];B[af];W[ai];B[jj];W[ij];B[hg];W[do];B[fp];W[dk];B[fj]
;W[hk];B[oo];W[jk];B[ml];W[ig];B[kd];W[ke])
(;W[ig];B[hg];W[hf];B[kf];W[je];B[li];W[mh];B[jn];W[km];B[hm]
C[white dies...]))
(;W[jn];B[km];W[kn];B[ln];W[gn]))
(;B[ah];W[bh];B[af];W[bi];B[ch];W[bj]
C[this result loses a point for black]))
(;W[ma];B[oa];W[fd]
C[black will not respond (see var) and white's capture is sente. this var is about 3 points better than the actual game, which will turn out to be decisive]
;B[fe];W[df]
(;B[de];W[ce];B[bg];W[fh]
C[black collapses])
(;B[eh];W[de]
(;B[ef];W[bg];B[cg];W[bi]
C[black loses too much on the side])
(;B[bg];W[ef];B[fh]
C[white has gained a lot of points here]))))
(;W[rb];B[rd];W[rh];B[rc];W[ho]
C[the game is now close on the board]))
(;W[rb];B[rd];W[rh];B[rc];W[he]
C[this sequence gives white's center group extra eye-space while gaining territory]
))
(;B[np];W[rm]))
(;W[mr];B[pr];W[ns];B[rq];W[qr];B[rr];W[ps];B[rn]
C[Capturing the three W stones is big]))

