(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]SZ[19]KM[0.00]GN[Jinro cup, 1996]PW[Ma Xiaochun]PB[Cho Hunhyun]WR[9p]BR[9p]DT[2013-05-04]EV[Jinro Cup, 4th]RO[game 14]PC[The KGS Go Server at http://www.gokgs.com/]WT[China]BT[Korea]RE[B+Resign](;B[pd];W[dp];B[pp];W[dd];B[fq];W[hq];B[fo];W[cn];B[ip];W[eq]LB[iq:B][fr:A](;B[iq]C[black B is solid but white gets a big secure corner];W[fr];B[gq](;W[qn];B[ql];W[gr];B[hr](;W[qq];B[pq];W[qp];B[po];W[qr];B[pn];W[rn](;B[pr]LB[jd:A][ol:B]C[seems slow but A or B are slower. This move is very important if white cuts and this move will be sente on the corner after];W[nc];B[pf];W[pb];B[md](;W[qc];B[mc];W[re];B[fc];W[df]C[very good to reduce black moyo];B[qm]LB[gf:A][jj:B]C[A or B would have been better];W[ge]C[solid shape for whtie but white should have reduce first around tengen];B[jk];W[lk];B[ki];W[ok];B[rm](;W[sr];B[nk]C[black is thick so he can separate white stones. If you are solid, you can cut, even a tobi !];W[li];B[nj];W[ni];B[mi];W[kj];B[lh](;W[jj];B[lj];W[kk];B[rf]LB[ih:A]C[almost a loosing move. A would be sente on the center white group and then black can attach];W[qe];B[qf];W[ji];B[jh];W[ih];B[jg];W[ig];B[if];W[hf];B[ie];W[gc]C[black is not afraid because he can still play san san. Futhermore, black is behind in points];B[dm];W[cm];B[ii];W[hk];B[hi];W[hg]LB[gh:A][gi:B]C[this is not the shape because in the real shape, black would have B in sente to escape];B[fi];W[nl]C[this is too early];B[ij];W[ml];B[ik];W[mj];B[nh];W[li];B[oi];W[kh];B[kg];W[km];B[ln];W[lm];B[mn];W[im];B[jl]C[bad shape but black has to kill the while group];W[lg];B[ki];W[jm];B[hl];W[kh];B[mh];W[gn];B[hm];W[hn];B[in];W[id];B[ki];W[io];B[jn];W[kh];B[kf];W[il];B[gk];W[gl];B[hj];W[gm];B[hk];W[kn];B[jo];W[ko];B[jp];W[el];B[dj];W[kp];B[kr](;W[lr]LB[nn:A]C[attachment at A first is better];B[mp];W[lq];B[jr];W[om];B[pm];W[dl];B[dg];W[eh];B[dh];W[ei];B[ej];W[fh];B[ck];W[fj];B[fk];W[gi];B[ek];W[cf];B[bg];W[bf];B[cg];W[bh]C[white can't kill black];B[ag];W[di];B[ci];W[bi];B[eg](;W[oj]C[if black defend on the right, white makes his first eye and the second one will be get in a Ko and white has a lot of ko threats to live];B[dc];W[cc];B[ed];W[ee];B[cd];W[ch];B[cj];W[fg];B[bj];W[bd];B[kl](;W[qj];B[rj];W[nr];B[mq];W[mr];B[or];W[bl];B[cl];W[en];B[ak];W[bm];B[bk];W[nq];B[np];W[ef];B[ai];W[pi];B[ri];W[lf];B[ki](;W[qk]C[loosing move];B[pl]C[it black connect his stones, white would be alive playing here];W[kh];B[ke];W[og];B[mf];W[ne];B[mg];W[ol];B[rk];W[qh];B[of];W[rh];B[ni];W[mk];B[pc];W[sh];B[qd];W[sl];B[mm];W[ll];B[sm];W[on];B[no];W[lp]C[how can black kill the corner ?];B[rs];W[qs];B[rp];W[ro];B[rq]LB[so:A]C[A is better to kill white](;W[qo];B[rr]C[white resign])(;W[rr]C[white can live in the corner];B[qo];W[so];B[sn];W[sp];B[sq];W[ro];B[rn];W[sp]C[but the center group is now dead (black has two eyes]))(;W[hp];B[gs];W[kh];B[ke];W[oh];B[ni];W[og];B[mf];W[qh];B[of];W[rh];B[nf];W[sh];B[sf];W[rk];B[qk];W[sj]C[white is alive !]))(;W[hp]C[black is alive ?];B[gs];W[gp];B[kq]C[yes :p]))(;W[fg];B[bj];W[ch];B[cj];W[ef];B[ai];W[bl];B[bk];W[ak];B[cl];W[bm];B[fl];W[em];B[fm];W[fn];B[en]C[black is alive]))(;W[nn];B[mp];W[lr];B[kq];W[mo];B[lo];W[lp];B[no];W[lq]TR[pm]C[difficult for white because of the cutting point]))(;W[lj]C[white can connect];B[ji];W[jj];B[ij];W[ik];B[ii];W[jl];B[hk];W[il]LB[kl:A]C[but white is not alive yet, black can play A later]))(;W[];B[qo];W[ro];B[sn];W[sp];B[qs];W[rs];B[sr];W[rq];B[sm]C[white is dead])(;W[qs]C[maybe the best way to live];B[sn];W[ro];B[so];W[sp];B[sm];W[sr]LB[nr:A]TR[ps]C[white is small but can push later or can play A])(;W[qo];B[qs];W[rs];B[ps]))(;W[mc];B[ld];W[lc];B[kd];W[jc]C[good exchange to build a moyo])(;W[nd]C[can white play like this ?](;B[me]C[to create a moyo];W[ne];B[nf];W[mf];B[ng];W[lf];B[mc];W[mb];B[lb];W[nb];B[kd];W[qc];B[jf]C[not a esay fight for white])(;B[mc]C[not good because is moyo will be destroyed];W[ne](;B[qc];W[mb];B[lb];W[nb];B[kd])(;B[nb];W[ob];B[mb];W[qc]C[the three stones are not important for white now];B[oc];W[re]))))(;B[jd]C[if black extend];W[pm];B[qm]C[white can cut];W[om];B[pj](;W[mm];B[mp];W[nj];B[ph];W[qc]C[not good for black because it's not easy to kill white on the center])(;W[no];B[mq];W[mp];B[lq];W[oq]C[white has separated black])))(;W[nq]C[double kakari is possible ? it will be good for white if black plays the common joseki];B[qq];W[oo];B[op];W[np];B[no];W[on];B[mo]C[very dangerous fight for white])(;W[pl]C[white can choose this joseki];B[pk];W[ol];B[qm];W[pn];B[np];W[rn];B[qi];W[qq];B[qp];W[rp];B[pq];W[qr];B[fc]C[no more moyo for black but he is sente]))(;AE[cn]C[with a higher stone, it's more difficult for white to keep the corner];W[dn];B[co](;W[cn]C[it's the same if white blocks from other side];B[er];W[dr];B[ep];W[dq];B[do])(;W[do];B[dr];W[er];B[cq];W[cp];B[bp];W[bo];B[bq]LB[cn:A]C[white can't kill this group because black can escape with A])))(;B[fr]C[if black plays sagari];W[iq];B[jp];W[hp];B[ho];W[jq];B[kp];W[lq];B[do];W[co];B[mo]C[black shape is better and white does not extend at the corner with a fifth line move so his wall can be useful]))(;B[pd];W[dp];B[fq];W[hq];B[pp];W[dd];B[fo];W[cn];B[ip];W[eq];B[iq];W[fr];B[gq];W[qn];B[ql];W[qq];B[pq];W[qp];B[po];W[qr];B[pn];W[rn]C[Kang Hun (B) vs Cho Hunhyun, W+R];B[jd];W[pm];B[qm];W[om];B[pj];W[mm];B[nl]LB[pk:A][qk:B]TR[nj]C[what's the meaning of this move ? if black defends the bottom, white would easially jump. and if black plays the nozoki after, white can have exchange A to B to enclose black stone.];W[ok]C[if white connects, his stones would be very heavy];B[nm];W[pk];B[nn];W[qk]C[situation seems also good for white];B[gr];W[or];B[pr];W[on];B[oo];W[no];B[np];W[mo];B[mn];W[lo];B[lq];W[ps];B[nr];W[mj];B[nk];W[nj];B[oj];W[qj];B[ph];W[oh];B[qi];W[ri];B[pg];W[rh];B[nf];W[lg];B[le];W[mr];B[nq];W[ns];B[ln];W[jj])(;B[pd];W[dp];B[pp];W[dd];B[fq];W[hq];B[fo];W[cn];B[ip];W[eq];B[iq];W[fr];B[gq];W[qn];B[ql];W[gr];B[hr];W[qq];B[pq];W[qp];B[po];W[qr];B[pn];W[rn]C[Lee Changho (B) vs Ma Xiaochun];B[pr];W[nc];B[pf];W[pb];B[md];W[qc];B[mc];W[re];B[fd]C[high kakari is good because it will be difficult for white to reduce black moyo];W[cf];B[qs];W[rs];B[ps];W[gf];B[rr];W[qm];B[pm];W[rl];B[qk];W[rq];B[ij];W[kj];B[jh];W[il]C[black did not manage to kill this group];B[ff];W[kl])(;B[pd];W[dp];B[pp];W[dd];B[fq];W[hq];B[fo];W[dn];B[ip];W[eq];B[iq];W[fr];B[gq];W[qn];B[ql];W[qq];B[pq];W[qp];B[po];W[qr];B[pn];W[rn];B[pr]C[Seo Bongsoo (B) vs Cho Hunhyun];W[nc];B[oe];W[qc](;B[pc];W[qd];B[qf];W[rf];B[rg];W[re];B[qg];W[pb];B[ob];W[qb];B[qm]LB[ji:A][fm:B]C[this move is not necessary, A or B is possible];W[jk];B[rm];W[qs];B[co];W[do];B[cl];W[cn];B[dh];W[fc];B[kk]LB[hk:B][jm:A]C[attack from A or B will lead to a small territory for black. Think about this kind of move !];W[jj];B[kj];W[ji];B[jl];W[ki];B[il])(;B[qd];W[pc];B[me];W[lc]LB[pm:A]C[this variation can prevent the cut at A]))(;B[pd];W[dd];B[pp];W[dp];B[fq];W[hq];B[fo];W[dn];B[ip];W[eq];B[iq];W[fr];B[gq];W[qn];B[ql];W[qq];B[pq];W[qp];B[po];W[qr];B[pn];W[rn];B[jd]C[Cho Hunhyun (B) vs Seo Bongsu];W[pm];B[qm];W[om];B[pj];W[no];B[nq]C[right shape because white can separate black stones if black plays a little further];W[nk];B[oi];W[mp];B[lr];W[lq];B[kr];W[qc];B[qd];W[pc];B[nc];W[nb];B[mn]))
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Ma Xiaochun    Cho Hunhyun
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