(;SZ[19]EV[Japan 58th Honinbo title final game 4]DT[2003-06-16]KM[5.5]PB[Cho U]BR[8p]PW[Kato Masao]WR[9p]PC[Japan]C[Copyright by gogameworld.com and weiqi.tom.com.]RE[B+R];B[qd];W[dd];B[pp];W[dq];B[do];W[dm]
;B[fo];W[fq];B[hp];W[kp]LB[go:a]C[W10: White prepares to crosscut at 'a'.];B[mq];W[go];B[ep];W[eq];B[gp];W[pe]LB[fp:a][gn:b]C[W16 has the implication of ladder breaker, if White directly cuts at 'a', then after B 'b', W12 would be captured in a ladder.]
;B[cp];W[cq];B[gn];W[qe]C[Through 20, both sides have taken some profit.];B[di];W[en];B[eo];W[ho]C[The timing of W24 is too early.];B[jo];W[io];B[ip];W[hm]
;B[jp];W[im];B[fn]C[After this move, it is time for noon break.];W[dj];B[ej];W[dk]
(;B[ci]LB[fl:a][ei:b][ch:c][ek:d]C[B35 is questionable, now the jump at 'a' is the vital point, followed by W 35, B 'b' and W 'c', Black can fight (see var a). Furthermore, if W 35 at 'b', then Black can retreat to 'd', Black would be favorable (see var b).];W[fl];B[cl];W[fj];B[ek];W[el];B[ei];W[cm];B[bq]
;W[br];B[bo];W[aq];B[bm];W[pd];B[fc];W[db];B[km];W[hj];B[qj]C[Through 53, Black's moyo in the lower right is big.];W[cf]LB[jc:a]C[W54 is no better than the extension at 'a'.]
;B[jd];W[lc];B[qo]C[B57 strengthening the corner is a big point.];W[bk]C[The sequence after W58 is an inevitable counter-attack.];B[bl];W[bj];B[fk];W[gl]LB[gk:a]C[W62: White should block at 'a'.];B[bp];W[dl];B[gh]
;W[oj];B[gr];W[cs];B[ld];W[md];B[le];W[kc]LB[kb:a]C[W72: White should make the diagonal's extension at 'a'.];B[jc];W[kd];B[ke];W[nc];B[jg]C[Through 77, Black has the possibility of enclosing some territory at the top, White has failed in the attack. Black is favorable in the game. 
After this move, the game was closed for the first day.]
;W[oq]C[The sequence after W78 starts the reduction.];B[pq];W[pr];B[qr];W[pl];B[rl];W[kq]C[W84: White wages a desperate struggle for a chance to win.]
(;B[ko]LB[mp:a][jn:b][mo:c][mm:d]C[B85 is somewhat weak, Black should play at 'a' to attack White strongly, followed by W 85, B 'b', W 'c' and B 'd', Black can fight (see var a).];W[mp];B[nq];W[lo];B[ln];W[mn];B[mm];W[nn];B[nm]
;W[op];B[on];W[oo];B[no];W[np];B[or];W[nr];B[ps];W[mr];B[mo];W[ir]C[Through 104, White makes life and also has enclosed a territory of 10 points, Black is a little dissatisfied.
After this move, it is time for noon break.];B[bf]C[B105: Black aims to attack White's big dragon.]
;W[cg];B[bh];W[bg];B[ag];W[hh];B[hg];W[ih];B[ig];W[jj]LB[kj:a]C[W114 should be at 'a'.];B[be];W[bd];B[ce]
;W[de];B[cd];W[cc];B[bc];W[bb]LB[af:a][ae:b][bi:c][ch:d][ai:e]C[W122 is wrong order. White should first throw in at 'a', after B 'b', then play 122, this way later on White can squeeze at 'c' and 'e' in sente, White would get one eye here.];B[ad];W[ec];B[re]
;W[rd];B[lj];W[oh];B[gk];W[hk];B[jl];W[cn];B[fp];W[bn];B[il];W[hl];B[an]TR[bb]C[Through 137, the improperness of the marked white stone can be seen.]
;W[li];B[mi];W[lh];B[jh];W[ki];B[oi]LB[nh:a][mg:b][ng:c]C[B143: Black should make the diagonal at 'a', then W 'b' and B 'c', White would have no chance of winning.];W[pi];B[ni];W[nh];B[mh]
;W[mg];B[mj];W[lf];B[ph]C[After B151, at a glance, it seems White is no good either.];W[je]LB[ie:a][qh:b][pg:c][qg:d][pj:e][qi:f][ng:g][nf:h][of:i][rj:j]C[W152 is an excellent move, if Black ataris at 'a', then W 'b', B 'c', W 'd', B 'e', W 'f', B 'g', White can connect back in sente at 'h', B 'i' and W 'j', White would be favorable.]

(;B[kf];W[ie]C[After W154, Black instead comes under attack.];B[ii];W[jk];B[hd];W[he];B[gd];W[id];B[ic];W[ge];B[fe];W[ff];B[gb]
;W[hc];B[hb];W[fd];B[ed]
(;W[ee]LB[fb:a][fa:b][eb:c][jb:d][af:e][ef:f][eg:g][gf:h][fg:i][gc:j][gg:k][hi:l][ah:m][hf:n][qi:o]C[W170: White has missed the winning chance regrettably. Now White should hang at 'a', followed by B 'b', W 'c', B 'd', W 'e', B 'f', W 'g', B 'h', W 'i', B 'j', W 'k', B 'l', W 'm', B 'n', W 'o', this way White would win the game (see var a).]
;B[hi];W[fd];B[gc];W[jb];B[ib];W[kb];B[fa]C[After B177, Black is leading about 10 points on the board, and Black's advantage is hard to change.];W[rh];B[qh];W[rg];B[ng];W[nf];B[og]
;W[ri];B[me];W[mf];B[nd];W[mc];B[qf];W[pf];B[qg];W[rf];B[ne];W[of];B[jr];W[jq]
;B[hr];W[is];B[lp];W[lq];B[qi];W[rj];B[rk];W[ab];B[ac];W[kk];B[iq];W[kr];B[fr]
;W[er];B[od];W[oc];B[kg];W[lg];B[gj];W[ll];B[eg];W[ml];B[nl];W[fg];B[dg];W[df]
;B[fh]C[The game 5 will take play on 6/25.])
(;W[fb]C[White should hang over here.];B[fa];W[eb];B[jb];W[af];B[ef];W[eg];B[gf];W[fg];B[gc];W[gg];B[hi];W[ah]
;B[hf];W[qi]C[White would win the game.]))
(;B[ie]C[If Black ataris here, ...];W[qh];B[pg];W[qg];B[pj];W[qi];B[ng];W[nf];B[of];W[rj]C[White would be favorable for the game.]))
(;B[mp]C[Black should play here.];W[ko];B[jn];W[mo];B[mm]C[Black can fight.]))
(;B[fl]C[Black should play here.];W[ci];B[ei];W[ch]C[Black can fight.])
(;B[fl]C[When Black plays here, ...];W[ei]C[If White cuts, ];B[ek]C[Black would draw back and Black would be favorable.]))