(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]SZ[19]KM[0.00]GN[Samsung Cup 32.]PW[Pan Ting Yu]PB[Won Sung Jin]WR[3p]BR[9p]DT[2012-11-18]CP[Komi 6.5]RO[2]PC[2012.09.05 Peking]SO[2Stunden 5Mal 60Sekunden ]RE[B+0.50];B[pd];W[dd];B[qp];W[dq](;B[oq](;W[qf];B[nc];W[rd];B[fc];W[df]LB[qg:A][qh:B][do:C](;B[ch]LB[jd:C][ck:B][cl:D][cn:A](;W[jd];B[qc];W[qi](;B[do](;W[cm]LB[ch:D][en:B][bo:C][cq:A]C[black has to use his D stone](;B[bo];W[fp];B[en](;W[dk]C[keima is faster to go to the center than the two spaces extension. Moreover, white would have to weak groups against one to defend](;B[hq];W[hp];B[ip];W[ho];B[eq](;W[ep];B[dp](;W[dr](;B[fr]LB[fq:B][gq:A][gr:C](;W[fq](;B[gr];W[er];B[el];W[ek];B[fl];W[bq](;B[hl];W[in];B[kp];W[eh];B[ce]LB[cd:C][de:B][cf:A](;W[cd];B[de];W[ee];B[cf];W[ec];B[bk];W[ck](;B[bj];W[dg];B[cg];W[gj];B[bm]LB[lc:A][rc:B][qn:C]C[where should white play ?](;W[qn]LB[oo:A][nq:B]C[white aims to A then B to separate black stones if black tenukis to times](;B[qk](;W[oo];B[fd];W[ed];B[pn](;W[pl];B[po];W[ql];B[jb];W[op](;B[nq];W[pp];B[pq];W[qo];B[on];W[rp];B[qq];W[hc];B[hb](;W[jc];B[ib];W[lc];B[kb];W[nd];B[od];W[nb];B[mc];W[lb];B[mb];W[ma];B[ob];W[md];B[na]LB[ge:A][of:C][ik:B](;W[ik];B[il];W[jl];B[jm];W[kl];B[go](;W[gq];B[ir];W[bp];B[ge];W[nf];B[pf];W[pg];B[nm];W[km];B[jn];W[kn];B[jo]C[black has to defend because of many cuts];W[nk];B[hf];W[ig];B[qg](;W[rf];B[og];W[pe];B[ph];W[oe];B[ng];W[oi];B[pi];W[pj];B[oj];W[qj];B[ni];W[nj];B[mf];W[mh];B[mi](;W[mg];B[lf];W[kg];B[ld](;W[ne];B[ke]LB[kc:A][je:B];W[rc];B[ki];W[kh];B[lj](;W[if];B[ml];W[lk];B[mk];W[kc];B[je]LB[gb:A](;W[ok];B[kk];W[ie];B[id](;W[nh];B[jk];W[qb];B[rq];W[qd];B[ic])(;W[ic];B[hd];W[gc](;B[gb];W[gd];B[he];W[fe])(;B[gd];W[gb];B[fb](;W[fa];B[eb](;W[la];B[ka];W[ha];B[kd];W[ga];B[ea])(;W[ka];B[ja];W[la];B[kd]))(;W[ga];B[la]))))(;W[mj];B[ok])(;W[ie];B[id];W[ic];B[hd];W[gc];B[gb];W[gd];B[he];W[fe];B[fb];W[hg];B[of]TR[hd][id][ge][he][hf]C[this is my personal opinion : white can't afford to capture five black stones because black would gain a lot on the top right corner or connect is black stones from the right side. As a result, black would be ahead in the game];W[qe];B[mj];W[nh](;B[oh])(;B[la];W[gf];B[oh])))(;W[lk];B[ii];W[hh];B[hj](;W[ok](;B[nh];W[jj];B[ji];W[hk];B[gk];W[gi])(;B[hk];W[nh];B[if]))(;W[hk];B[gk];W[jj];B[ji];W[ok];B[gi];W[fj];B[gh](;W[hi];B[ij];W[jk];B[nh])(;W[nh];B[hg]))))(;W[le];B[me]))(;W[lh];B[mg](;W[kg];B[qe];W[qd];B[of];W[ne];B[ld])(;W[le];B[kg];W[if];B[ki])))(;W[of];B[rf](;W[pe];B[qe];W[pf];B[re];W[rg]C[big profit for black on the corner])(;W[qe];B[pe];W[rg];B[qh](;W[rh];B[ph];W[og];B[re])(;W[ph];B[rh];W[ri];B[sg];W[re];B[rc];W[si];B[sh];W[sf];B[se];W[sd];B[sc]C[Ko ])(;W[re];B[rh];W[sf];B[pi];W[ph];B[ri];W[oi];B[pj];W[rk];B[rj];W[rl];B[sh]C[black is alive]))))(;W[gp];B[hk];W[hj];B[km];W[ll];B[lm];W[ml];B[bp](;W[gn];B[fo];W[eo];B[fn])(;W[fn];B[gn];W[gm];B[fo])(;W[cq]C[white is dead];B[es])(;W[br]C[not possible];B[aq];W[ar];B[cq];W[cr];B[es];W[ds];B[bs])(;W[bs];B[ar];W[aq];B[es];W[ds];B[cr];W[cq];B[br]C[seki])))(;W[fb];B[gb];W[eb];B[hd]C[bad for white]))(;W[gb];B[ic];W[hd];B[id]C[black makes more profit]))(;B[pq];W[mp]))(;W[po];B[qo](;W[pm];B[on];W[nn];B[om];W[ol];B[nm];W[mm];B[nl]TR[fc][fd]C[ladder not good for white])(;W[qm];B[on]LB[pl:B][no:A]))(;W[pm];B[po];W[ql];B[on];W[pk];B[jb]))(;W[nn];B[np];W[pp];B[pq];W[rp]))(;B[jb];W[oo];B[np]C[if black answer here];W[pp];B[pq];W[rp]C[Yose moves]))(;W[cn](;B[bp];W[bn];B[bl];W[dn];B[eo];W[ao];B[jm])(;B[co];W[bn];B[bl];W[an];B[cl];W[dl];B[dm];W[ao];B[cq]))(;W[qo];B[po];W[qn];B[rp];W[pn];B[oo];W[lc]C[white can have moves on Sente to attack black weakest group after]))(;B[dg]C[black should have played this first];W[ef];B[bj];W[eg];B[bm]LB[eg:A][gj:B]))(;W[cf];B[de];W[ee];B[cd];W[ec];B[cc](;W[fb];B[bf];W[bg];B[be];W[cg])(;W[eb];B[bf];W[bg];B[be];W[cg];B[db]))(;W[de];B[cd];W[cf];B[bf];W[bg];B[be];W[cg];B[db];W[cc];B[bc];W[dc];B[cb]))(;B[eh]C[quite difficult for ... ?]))(;B[gq];W[er];B[gp]C[many variations but thez are not good for white unless he sacrifices some stones to capture the black four stones on the West side]))(;W[gq];B[gr];W[iq];B[hr];W[ir];B[er];W[bq];B[io](;W[in];B[jq];W[jr];B[kq];W[kr];B[lq];W[lr];B[mr])(;W[kq];B[hn];W[gn];B[hm];W[fn];B[go];W[gp];B[fm])))(;B[fq](;W[gq];B[gr];W[gp];B[fr];W[iq];B[hr];W[ir];B[io];W[in];B[jq];W[jr];B[kq];W[kr];B[lq];W[lr];B[mr](;W[mq];B[mp];W[jp];B[jo];W[ko];B[jn]C[white will loose too much on the center or both])(;W[er];B[ls];W[fs]C[better for white]))(;W[iq];B[gp];W[go];B[gq];W[fo];B[jq];W[ir];B[jr];W[hr];B[gr])))(;W[er];B[cq];W[fq];B[cr];W[iq];B[eh]C[white is on trouble]))(;W[er];B[dp];W[iq];B[dr];W[fr];B[cq];W[jq];B[eh]LB[ff:A][fk:B]C[A and B are miai]))(;B[eh];W[gk]))(;W[jq];B[dl])(;W[cj];B[ck];W[bk];B[bl];W[cl];B[dk]C[white wouls have to make a choice between upper side or bottom side]))(;B[cq](;W[cp];B[dp];W[co];B[cn](;W[dn];B[bn];W[bq];B[cr];W[bo];B[eq];W[bm];B[en];W[dm]TR[ch]C[black marked stone is not well.])(;W[bn];B[eq];W[dr];B[dn];W[bp];B[dm];W[cl];B[er];W[cr];B[ek]LB[dj:B][jp:A]C[If black plays at A instead of the last move, white wiykd be happy to take B point.]))(;W[cr];B[cp];W[gq];B[em];W[dk];B[er];W[dr];B[eq];W[ep];B[dp];W[es];B[fp];W[fr];B[eo]C[A Fuseki with ladder ];W[jq];B[eh]))(;B[en](;W[gq];B[dl];W[cp];B[co])(;W[co];B[cp];W[dp];B[cn];W[bo];B[bn];W[bp]C[better shape for black than next variation])(;W[em];B[fm];W[el];B[cn];W[fn];B[fo];W[gn];B[go];W[hn];B[ho];W[in];B[bm];W[bl];B[cl];W[dm];B[bk];W[bn];B[al];W[co];B[dn];W[dp];B[eo];W[bo];B[jp];W[gq];B[hq]))(;B[fo];W[co];B[cp];W[dp];B[cn];W[bo];B[bn];W[dn];B[eo];W[bm]C[not good for black. But if black wants to play something like that, he can kosumi first (see previous variation)]))(;W[fq];B[cq];W[cr];B[cp];W[br];B[dl]LB[fp:A]C[it would be similar if white started with A. And black is really fine]))(;B[fe];W[eg]))(;W[ck];B[eh](;W[ff];B[bf]C[seems fine for white ?])(;W[ge];B[hd];W[gh]C[it is also possible])))(;B[qh];W[qc];B[qe];W[re];B[pf];W[pg];B[qg];W[rf];B[og]C[Not good enough for black.]))(;W[qj]C[Another variation](;B[fc];W[cf];B[qh];W[qm];B[jd];W[qc];B[pc];W[qd];B[pe];W[qe];B[qf];W[rf];B[rg];W[pf];B[qg];W[pb];B[ob];W[qb];B[nc])(;B[ql];W[qf];B[qh];W[of];B[nc];W[rd]C[Also Fuseki])))(;B[co]C[Another fuseki];W[oq];B[lp];W[on];B[qn];W[ep]))