(;GM[1]FF[4]CA[UTF-8]AP[SGFEditor (WPF): 1.0.0]SO[http://gokifu.com]ST[1]SZ[19]PW[adsfsg(4级)]WR[]PB[weih93(4级)]BR[]RE[白20目半胜]DT[2013-5-19]KM[6.5];B[pd];W[pp];B[cd];W[qf];B[nc];W[pj];B[dp];W[fq];B[dn];W[dr];B[gq];W[gr];B[gp];W[fp];B[go];W[fo];B[hr];W[fr];B[iq];W[cq];B[cp];W[ed];B[hd];W[ce];B[be];W[cf](;B[ec];W[fc];B[dc];W[fd];B[bf];W[cg];B[ck];W[bg];B[nq];W[dd];B[cc];W[np];B[mp];W[no];B[qq];W[qp];B[pq];W[mo];B[lp];W[oq];B[or];W[op];B[nr];W[fg];B[rp];W[ro];B[rq];W[gb];B[qh];W[qj];B[pg];W[qc];B[qd];W[rd];B[re];W[rc];B[rf];W[ob];B[nb];W[oc];B[od];W[pc];B[jc];W[eb];B[db];W[fm];B[gn];W[fn](;B[bi]C[This move gets the right idea, to help the stone along the side. But there are some problems left.];W[ag];B[jf];W[oh];B[mj];W[mg];B[ml];W[og];B[pf];W[nk];B[mk];W[kn];B[jk];W[kg];B[nm]C[this is a good move: two purposes!!];W[om];B[lo];W[nl];B[ln];W[nn];B[gm];W[mm];B[lm];W[bn]C[This is a good move. ](;B[bp]C[This reaction only possible if outside strong for Black. In this case here it is an outright mistake.];W[dm];B[cm];W[cn];B[dl];W[do];B[em];W[en];B[dm];W[co];B[fl];W[bm];B[bl];W[bb];B[bd];W[af];B[ea];W[fb];B[ef];W[ff];B[eh];W[eg];B[fh];W[gh];B[gi];W[hh];B[hi];W[dh];B[di];W[ii];B[ij];W[ji];B[jg];W[jh];B[kf];W[lg];B[ri];W[rj];B[so];W[rn];B[me];W[fi];B[ei];W[kk];B[jl];W[jj];B[hj];W[na];B[ma];W[oa];B[lb];W[ic];B[id];W[ib];B[jb];W[kl];B[km];W[ik];B[fj];W[ci];B[cj];W[lf];B[le];W[kj];B[ll];W[ph];B[ch];W[of];B[dg];W[df];B[qg];W[ne];B[nd];W[oe];B[hf];W[hg];B[hc];W[hb];B[sj];W[sk];B[si];W[qi];B[rh];W[ni];B[ig];W[ih];B[sn];W[sm];B[sp];W[rl];B[gf];W[li];B[ac];W[ae];B[ab];W[ba];B[gg];W[dh];B[ep];W[eo];B[dg];W[ee];B[am];W[an];B[al];W[ge];B[he];W[pe];B[qe];W[mi];B[nj];W[oj];B[mf];W[sd];B[gs];W[fs];B[hs];W[ai];B[ah];W[bh];B[aj];W[dh];B[ci];W[ja];B[ka];W[ia];B[se];W[nf];B[br];W[bq];B[aq];W[cr];B[eq];W[er];B[bs];W[ar];B[mn];W[gd];B[ah];W[nm];B[da];W[dg];B[ca];W[ai];B[ad];W[ah];B[lj])(;B[bo]C[This move seems to offer a good alternative.];W[dm];B[cm];W[cn]))(;B[bq];W[br];B[dq];W[cr];B[bi]C[after the sente sequence in the corner Black is absolutely safe along the side. Compare with the move 98 and 99 later in the game.]))(;B[dd];W[ee];B[ec];W[fc];B[eb];W[gd];B[he]C[and White has to worry about the cut in his position. ]))