(;GM[1]VW[]BS[0]WS[0]SZ[19]BL[0.0]WL[0.0]FF[2]GN[Qian-Yu Bin]EV[Ing Cup, 2nd Round \(?\)]DT[]PC[]PW[Yu Bin]PB[Qian Yu Ping]KM[]TM[]RE[b+2.5]SO[wei qi]CP[]AN[]US[M.Müller]OE[0]OS[0]RO[]GC[]WR[]BR[]HA[0];B[pd];W[dc];B[dq];W[qq];B[ce](;W[ck];B[ch];W[co];B[gc](;W[ed];B[bc];W[jd];B[ie];W[nc];B[je];W[kd](;B[id];W[ef];B[eh];W[fc](;B[gd]BM[1];W[bb];B[bd];W[eb](;B[ob];W[ke](;B[kf]BM[1]C[This is the wrong direction, allowing white to play a counter attack against the corner. In the variation given, black should take a lot of profit on the right side];W[lf];B[kg];W[lg];B[lh];W[pf]C[Now it is clear that b27 was wrong. Black also has a cutting point in the center to worry about.];B[mh];W[nf];B[pi];W[qd]C[Tesuji];B[qc];W[qe];B[pc];W[nb];B[ep];W[dn];B[en];W[em];B[fn];W[di];B[dh];W[kq];B[pn]C[A good point, just like w48.];W[np];B[nn];W[qi]C[White is satisfied with a shallow reduction like this.];B[qj];W[qh];B[rj];W[lo];B[ph];W[pg];B[lm];W[rd];B[rc](;W[sc];B[sb];W[ra](;B[gb]M[];W[cb];B[na];W[ma];B[oa](;W[pj];B[oh];W[qk];B[qg];W[rg];B[rh];W[qf];B[ri];W[qg](;B[rk];W[ql];B[pk];W[oj];B[mb];W[pm](;B[om];W[mc];B[la];W[ol];B[qm];W[pl];B[rl];W[qn];B[rm];W[nl];B[qo];W[lk];B[ji];W[lb];B[kb];W[ma];B[dl];W[cl];B[mb];W[lc];B[mj];W[ll];B[km];W[ni];B[nh];W[lj];B[li];W[jj];B[ij];W[ik];B[jk];W[kj];B[hj];W[jl];B[hk];W[jm];B[bp];W[cp];B[cq];W[bi];B[bh];W[hq];B[bo];W[bn];B[ko];W[lp];B[rq];W[rr];B[rp]M[];W[ma];B[qb];W[po];B[rn];W[pp];B[gr];W[hr];B[dm];W[cm];B[ci];W[ek];B[el];W[fl];B[fm];W[dk];B[em];W[cj];B[fe];W[de];B[bj];W[bk];B[ai];W[ei];B[fj];W[ej];B[il];W[kl];B[io];W[jn];B[gq];W[hp];B[hs];W[is];B[gs];W[ir];B[hn];W[cf];B[bf](;W[fi]BM[1]C[This seems to be the losing move, white should have won if he had captured some stones below.];B[jo]C[After this move, the whole area is neutralized.];W[kn];B[oe];W[of];B[jq];W[jr];B[sr];W[rs];B[mn];W[gh];B[ln]C[This cut is also worth some points, it adds to the importance of b173.];W[nm];B[on];W[mk];B[nj];W[nk];B[mi];W[mm]C[White has to make a miserable life \( only 3 points, in gote \)];B[kp];W[lr];B[oi];W[ok];B[jb]C[After getting this large endgame black is sure of winning.];W[jh];B[kh];W[ii];B[fk]M[];W[ki];B[hf];W[ka];B[mo];W[mp];B[ne];W[me];B[ja];W[qa];B[oc];W[pa];B[sd];W[la];B[se];W[sf];B[mg];W[mf];B[jc];W[go];B[do];W[hm];B[im];W[in];B[ho];W[gp];B[fp];W[gn];B[gm];W[ip];B[hl];W[jp];B[hm];W[cg];B[bg];W[cd];B[be];W[cn];B[fb];W[fd];B[ff];W[ig];B[hg];W[gg];B[gf];W[jg];B[jf];W[ao];B[bq];W[ac];B[ad];W[ab];B[nd];W[pe];B[ea];W[da];B[fa];W[md];B[od];W[re];B[sc];W[hh];B[oo];W[op];B[qp];W[pr];B[ap];W[an];B[ak];W[al];B[aj];W[sh];B[si];W[sg];B[gj]NB[131]NW[127])(;W[mn]))(;B[qn]BM[1];W[rl];B[ok];W[nj];B[nk];W[mj];B[pl];W[mk];B[om];W[nh]GW[1]))(;B[ql];W[rk];B[rl];W[pk];B[sk];W[sj];B[si];W[nh];B[ni];W[ng];B[mb];W[kh];B[lj];W[ki];B[li];W[kb];B[la];W[ib];B[mc];W[nd];B[md];W[me];B[oe];W[ne];B[qb];W[jf];B[jg];W[if]GW[1]))(;W[qb];B[mb];W[kb];B[la];W[ib];B[mc];W[nd];B[md];W[me];B[oe];W[ne];B[of];W[og];B[ng]GB[1]))(;B[qb]BM[1];W[oc];B[pa];W[na]GW[2]))(;W[oc];B[oa];W[sc];B[sb];W[ra];B[qa];W[qb];B[pb];W[pa]))(;B[pf];W[kg];B[ih]))(;B[oc];W[nd];B[pf];W[lf];B[jh]C[This sequence would work better for black. The white Group remains insecure, because Black can play the following:](;)(;W[tt];B[cb];W[gb];B[hb];W[ha];B[ia];W[ga];B[jb])))(;B[gb](;W[gd];B[ge];W[gf];B[fe];W[cf];B[bf];W[ff];B[gh];W[he];B[hd];W[hf];B[fb];W[ee];B[eb]GB[1])(;W[gf];B[gh];W[gd];B[jc];W[kc];B[jb])))(;B[ge]C[This would be a faster way to develop for black.];W[ef];B[eh];W[fg];B[ih];W[fh];B[ej]))(;W[cd];B[de](;W[be];B[bf];W[bd];B[ge];W[nc];B[lc];W[ld];B[kc];W[ne];B[pf];W[kd];B[jc])(;W[ed];B[dd];W[gd];B[cc];W[fc];B[db];W[hc]M[ch]GW[1])))(;W[do]))(;GM[1]SZ[19]VW[]EV[2nd Japan-China Super Go Series]DT[1987-04-30]PW[Otake Hideo]PB[Nie Weiping]KM[5.5]TM[]RE[b+2.5]SO[]AN[Otake, Kato, Kobayashi]US[J. Nievergelt]FF[2]GN[China-Japan 2/8 2/Otake-Nie \(clean\)]RO[Final Game]PC[Tokyo]GC[]WR[9-dan]BR[9-dan]HA[0];B[pd];W[dd];;B[pq];W[dq];B[po];W[qj];B[co];W[dl];B[dn];W[fp];B[cj];W[ek];B[cq];W[cr];B[dp];W[eq];B[bq];W[jq];B[cf];W[fc];B[dh];W[nc];B[qf];W[qm];B[fn];W[mq];B[rn];W[pb];B[qc];W[kc];B[bd];W[hk];B[cc];W[hd];B[rm];W[qh];B[ke];W[ne];B[qb];W[rf]L[fh];B[qg];W[rg];B[re];W[oh]L[qe];B[ie];W[id];B[rh];W[ri];B[ph];W[sh];B[pi];W[pg];B[og];W[pf];B[qe];W[of];B[pj];W[qk];B[pk];W[pl];B[rl];W[ql];B[nk];W[pn];B[oo];W[nm];B[ng];W[nh];B[mg];W[mh];B[lg];W[lh];B[kh];W[lj];B[ki];W[mk];B[lc];W[nd];B[ml];W[nj];B[lk];W[mj];B[kj];W[ei]L[il];B[eh];W[gi]L[dj][ck];B[fh];W[kk]L[il];B[jk];W[ll];B[kl];W[gh];B[he];W[hm];B[hn];W[im];B[hq];W[go];B[gn];W[ip];B[in];W[jm];B[lk];W[lm];B[hp];W[ho];B[io];W[iq];B[hr];W[fr];B[km];W[jn];B[kp];W[kq];B[ln];W[mm];B[lp];W[lq];B[kn];W[jo];B[fl];W[jp];B[gk];W[gj];B[gd]L[hj];W[gc];B[jc];W[jd];B[kd];W[kb];B[je];W[ge];B[fd];W[ib];B[fo];W[gp];B[ec]L[ed][gf][hj][dc];W[ed];B[fe];W[gf];B[ef];W[dc];B[lb];W[cd];B[bc];W[jb];B[eb];W[db];B[hc];W[ic];B[gb];W[hb];B[fb];W[hc];B[cb];W[jg];B[ig];W[ea];B[br];W[ij];B[gl];W[ik];B[hl];W[il];B[hg];W[gg];B[nf];W[oe];B[me];W[dr];B[nr];W[cm];B[ks];W[kr];B[ms];W[js];B[ck];W[di];B[ci];W[el];B[bm];W[bn];B[bl];W[cn];B[bo];W[kk];B[ii];W[no];B[lk];W[hf];B[if];W[kk];B[on];W[oq];B[or];W[nq];B[lk];W[pr];B[qq];W[kk];B[om];W[nl];B[lk];W[qr];B[rr];W[kk];B[hi];W[hj];B[lk];W[ep];B[eo];W[kk];B[nn];W[mn];B[lk];W[ao];B[ap];W[kk];B[np];W[rq];B[qs];W[qo];B[qn];W[pp];B[ps];W[op];B[qp];W[mp];B[lk];W[pm];B[ro];W[kk];B[jj];W[jl];B[lk];W[cp];B[do];W[kk];B[dj];W[ej];B[lk];W[mb];B[la];W[kk];B[fi];W[fj];B[lk];W[pc];B[kk];W[rb];B[ra];W[rc];B[rd];W[sb];B[pe];W[pa];B[qa];W[df];B[ce];W[ee];B[na];W[oc];B[mc];W[an];B[md];W[qi];B[nb];W[ok];B[dg];W[ff];B[rk];W[bs];B[de];W[ls];B[cl];W[dm];B[mr];W[am];B[al];W[sd];B[se];W[sf];B[sc];W[hh];B[ih];W[sd];B[ob];W[oi];B[sc];W[em];B[ar];W[sd];B[ma];W[oj];B[sc];W[fm];B[gm];W[sd];B[ph];W[ca];B[ba];W[da];B[sc];W[sj];B[sa];W[fg];B[ka];W[sk];B[ja];W[sl];B[ia];W[ha];B[sm];W[rj];B[li];W[eg];B[lr];W[mi];B[df];W[ks])(;GM[1]VW[]BS[0]WS[0]SZ[19]BL[0.0]WL[0.0]FF[2]EV[China japan Super Go, Round 1]DT[]PC[]PW[Yoda Norimoto]PB[?]KM[]TM[]RE[b+0.5]SO[wei qi 8/89]CP[]AN[]US[M.Müller]OE[0]OS[0]GN[China-Japan 5/1]RO[]GC[]WR[7dan]BR[3dan]HA[0];B[qd];W[dd];B[pq];W[dp];B[oc];W[dj];B[fq];W[po];B[cq];W[cp];B[dq];W[ep];B[eq];W[go];B[fc];W[df];B[jd];W[qi];B[qo];W[qn];B[ro](;W[qf];B[pn];W[hq];B[bp];W[bo];B[bq];W[cn];B[on];W[oe];B[cc];W[dc];B[db];W[cd];B[bb];W[bc];B[cb];W[ge];B[hd];W[nc](;B[nb];W[ob];B[pb];W[pc];B[od];W[pd];B[nd];W[ne];B[md];W[qb];B[oa];W[qc];B[kq];W[jo];B[lp];W[hj];B[im];W[jq];B[ik];W[gl];B[ij];W[hi];B[kn];W[kr];B[lr];W[ii];B[qk];W[rk];B[rl];W[pk];B[ql];W[qj];B[hn];W[kp];B[lq];W[fp];B[ko];W[jp](;B[kj]BM[1];W[jn];B[jm];W[nk]TE[1];B[hf];W[gf];B[hg];W[gg];B[bd];W[be];B[ac];W[nm];B[nn];W[lm];B[km];W[rj];B[mi];W[pl];B[pm];W[nh];B[ni];W[oi];B[mh];W[ng];B[ae];W[bf];B[af];W[ag];B[ad];W[cg];B[ml];W[nl];B[mm];W[mk];B[ll];W[gr];B[fr];W[ec];B[eb];W[ir];B[ks];W[fd];B[gd];W[hh];B[gm];W[fm];B[hl];W[gk];B[qa];W[ra];B[ce];W[de];B[rb];W[pa];B[ho];W[hp];B[qa];W[gc];B[sa];W[rc];B[fb];W[ke];B[kd];W[js];B[jr];W[ab];B[aa];W[kr];B[ls];W[sc];B[mg];W[me];B[oj];W[mf];B[nj];W[pj];B[kf];W[ie];B[he];W[je];B[id];W[lf];B[gs];W[hs];B[fs];W[sl];B[gq];W[gp];B[sm];W[sk];B[rm];W[sb];B[gn];W[fn];B[ji];W[lk];B[kk];W[kh];B[ki];W[jg];B[pa];W[ra];B[jr];W[is];B[lg];W[kg];B[ao];W[an];B[ap];W[in];B[io];W[ip];B[hm];W[ld];B[lc];W[le];B[li])(;B[mj]C[This move would give black an easy win.]))(;B[od]C[Nie Wei Ping proposed this variation, because white would the be very sorry for the exchange of w38/b39 that eliminates a white invasion.];W[nd];B[nb];W[mb];B[ob];W[ne]))(;W[rn];B[pp];W[oo];B[np];W[mn]))(;GM[1]VW[]BS[0]WS[0]SZ[19]BL[0.0]FF[2]GN[China-Japan 5/2]EV[5th China Japan Match, Game 2]DT[]PC[]PW[?]PB[Sonoda Yuichi]KM[]TM[]RE[b+∞]SO[]CP[]AN[]US[M.Müller]OE[0]OS[0]RO[]GC[]WR[3dan]BR[9dan]HA[0];B[pd];W[dd];B[pp];W[eq];B[cp];W[dn];B[ep];W[dp];B[do];W[dq];B[co];W[eo];B[fp];W[cq];B[cn];W[dm];B[fo];W[en];B[cm];W[fn];B[fq];W[cl];B[bl];W[bk];B[bq];W[br];B[ap];W[fr];B[gr];W[er];B[ck];W[dl];B[bj];W[go];B[hp];W[gp];B[gq];W[hq];B[hr];W[iq];B[ir];W[jq];B[jr];W[kq];B[kr];W[lq];B[ar];W[cs](;B[lr];W[mq];B[bs];W[as];B[gn];W[ho];B[bs];W[dk];B[ak];W[as];B[hn];W[io];B[bs];W[di];B[cr];W[in]GW[1];B[qm];W[jd];B[nd](;W[jg]BM[1]C[This move is too small in scale, it might be the losing move. Black already has almost 40 points in the lower left corner, and after b69 whites center is is not 40 points bigger than blacks framework on the right.];B[mh]TE[1];W[kj];B[mj];W[pl];B[ql];W[pj];B[kk];W[jj];B[kh];W[jh];B[ph];W[qk];B[qi];W[pm];B[qn](;W[ml]BM[1]C[Not good, because black can get access to the center. Better to play the variation given.];B[mk](;W[ec]BM[1]C[White's last chance was to play M17 and go for everything, according to Nie.];B[cg];W[ch];B[bh];W[dg];B[cf];W[df];B[ci];W[dh];B[ll];W[mm];B[lm];W[mn];B[kc];W[jc];B[rk];W[qc];B[qd];W[pb];B[im]TE[1]C[This move is tesuji, white cannot cut it off.](;W[oh];B[oi];W[oc];B[od];W[mc];B[nc];W[nb];B[pc];W[ob];B[qb];W[md];B[me];W[le];B[lf];W[ke];B[ik];W[ce];B[hj];W[hi];B[gj];W[gi];B[oq];W[pi];B[qj];W[mf];B[og];W[ne];B[rc];W[pk];B[ln];W[mo];B[nh];W[mr];B[or]TB[ra][sa][rb][sb][qc][sc][rd][sd][pe][qe][re][se][pf][qf][rf][sf][ag][bg][pg][qg][rg][sg][ah][oh][qh][rh][sh][ai][bi][ri][si][aj][cj][rj][sj][bk][hk][sk][al][hl][il][jl][kl][rl][sl][am][bm][hm][jm][km][rm][sm][an][bn][rn][sn][ao][bo][qo][ro][so][bp][dp][qp][rp][sp][aq][cq][dq][eq][pq][qq][rq][br][dr][er][fr][pr][qr][rr][as][cs][ds][es][fs][gs][hs][is][js][ks][ps][qs][sq][sr][ss][rs][qs][rs][ni][po]TW[da][ea][ia][ja][ka][la][ma][na][oa][cb][db][eb][fb][gb][hb][ib][jb][kb][mb][bc][cc][dc][fc][gc][hc][ic][kc][bd][cd][ed][fd][gd][hd][id][de][ee][fe][ge][he][ie][je][ef][ff][gf][hf][if][lf][eg][fg][gg][hg][ig][eh][fh][gh][hh][ih][hp][ip][aa][ab][bb][ba][ca][cb][bb][bc][ac][ad][ac][bc][bb][cb][db][eb][fb][gb][ga][fa][ea][fa][ga][ha][ia][lb][lc][ld][kd][em][el])(;W[jm];B[ik]))(;W[lc]))(;W[mk];B[nk];W[lk];B[nl];W[pn];B[po];W[nn];B[lj];W[kl];B[ll];W[jk];B[ml]))(;W[kh]C[This sequence is preferable, according to Sonoda. Nie said that in this case Black would have to try an invasion as indicated.];B[mi];W[lj];B[ef]))(;B[bs];W[as];B[gn];W[ho];B[bs];W[ak];B[aj];W[as];B[hn];W[io];B[bs];W[dk];B[al];W[as];B[dj];W[aq];B[in];W[fk]))
