(;SZ[19]DT[2001-12-12]EV[6th Samsung Cup final game 2]KM[6.5]C[Copyright by gogameworld.com and weiqi.cn.tom.com.]PW[Cho Hunhyun]BR[9p]PB[Chang Hao]WR[9p]PC[Shanghai, China]RE[W+0.5];B[qd]C[(Chang Hao 9P of China is Black)];W[dd]C[(Cho Hunhyun 9P of Korea is white)];B[pq]C[Even baseball coaches request their players to pay more attention to the "even number" game, this game 2 in best-of-3-games is needless to say.];W[oc]C[Based on the statistics, this year Cho Hunhyun's result is extremely good, he only has lost three games in the international competitions (one game in Chunlan Cup, two games in Guiyang Go Festival), these three games were all lost in China, including the game he lost yesterday, he has already lost four games, the final of Samsung Cup takes place in Shanghai, China.]
;B[dp];W[po];B[md];W[oe];B[pf];W[ph]LB[kd:a][oh:b]C[W10 playing as the pincer move at 'a' is common, W10 at 'b' is also a favorite play of Cho Hunhyun.];B[of];W[ne];B[pc]LB[ng:a][me:b][kd:c]C[B13 is rarely seen, the usual sequence is B 'a', W 'b' and B 'c'.]
;W[nf];B[ob];W[nc];B[nb];W[mc]LB[pe:a][qe:b][qf:c][qg:d][rf:e][pg:f][qh:g][rg:h][rh:i][re:j][og:k][sf:l]C[B15 and B17 aims to grab territory, it is fitting Chang Hao's style, so far it is a normal variation, but Black has obtained a considerable territory in the corner and should be satisfied. After W18, White has the tactic of pushing through at 'a' to fix his shape by sacrificing with the sequence W 'a', B 'b', W 'c', B 'd', W 'e', B 'f', W 'g', B 'h', W 'i', B 'j', W 'k' and B 'l' (see var a).]

(;B[np];W[qq];B[qr];W[qp];B[or];W[no]LB[pe:a][oh:b][qk:c]C[W24 is a top-notch play of Cho Hunhyun, aiming to expand his moyo on the right side, now because White can push through at 'a', the maneuver of B 'b' attaching out is greatly restrained, Cho Hunhyun will not cooperate to extend at around 'c'.];B[mo];W[nn];B[op]TR[or]LB[mn:a][mm:b]C[The marked black stone is tiger reinforcing, so it looks like that B27 is superfluous, but if Black presses at 'a', then White will hane at 'b' strongly, Black has no good follow-up. Black aims to obtain sente then turn to other places.]
;W[pm];B[oh]TR[pm]LB[og:a][pg:b][ng:c][qh:d]C[After White strengthens with the marked stone, then B29 has no apprehensions to attach out, because now if White wedges at 'a', then B 'b', W 'c' and B 'd' ataris to grab territory, the marked stone appears cumbersome.];W[pi]C[W30 has no choice but to draw back.];B[ng]C[Black can stick his head out with B31 and should be very happy.];W[qf]C[W32 turns to acquire territory and it is White's deserved compensation, White has spent a lot of moves on the right side.];B[pe];W[pg]
;B[og];W[kc]LB[re:a][qb:b]C[W36 is a good move, White strengthens himself and also makes the diagonal move at 'a' become sente, when W 'a', if Black tenukis, after W 'b', Black will come under attack, and it is clear at a glance that  W 'a' also helps increase White's territory on the right side.
];B[fc]TR[kc]C[The approaching direction of B37 is certain, though White reinforces with the marked white stone, but White is still not completely stable.];W[ec];B[fd];W[df];B[ic];W[je]C[W42 is the mutual good point, strengthening himself and also attacking Black.];B[ld]LB[lc:a][lf:b][kd:c][he:d]C[B43 is ruthless, aiming at the sequence of W 'a', B 'b', W 'c' and B 'd', as a result White gets a bad shape.]
;W[lc];B[lf];W[id]LB[hc:a][jc:b][kd:c][gb:d]C[The hit of W46 is a tit-for-tat play, Cho Hunhyun definitely will not grant Chang Hao's wishes, if B 'a' retreats, then W 'b', White's shape is much better than the one that we discussed earlier; If B 'b', then W 'c', after the addition of W46, White has the maneuver of striking inside Black's territory at 'd'.];B[hd]C[B47 is the most intensive counter-attack.];W[jc];B[ie];W[jd]LB[hc:a][he:b]C[By forcing W50 to connect, Black must feel very happy, but Black is also troublesome with the two cutting points 'a' and 'b'.
]
;B[he];W[jg];B[ib];W[re]LB[mg:a][rd:b]C[W54 is an earlier preserved tactic, now W 'a' is a good point but this may help Black become thicker on the outside, then Black's diagonal move at 54 may not be sente any more. But will Black respond at 'b' docilely?];B[ki]LB[mg:a][mf:b][lg:c][kg:d]C[Black counteracts with B55, and also seems to defend White's hane at 'a', now if White hanes at 'a', then B 'b', W 'c' and B 'd' wedging is a good move, White is no good.];W[ih]LB[mg:a]C[After White diagonals with W56, the hane at 'a' works again, Black needs to reinforce.]
;B[kg];W[if]LB[kf:a][gg:b]C[W58 can defend the cut at 'a' with sente, but it also seems to strengthen Black, so professional players like Cho Hunhyun are generally reluctant to play the moves that only seek momentary gratification. But after W 'a', W 'b' attacking Black is very severe.];B[fg];W[ij];B[dg]LB[cg:a][ch:b][cf:c][dh:d][cc:e][eb:f][cd:g][ce:h][ba:i]C[The attachment of B61 is a good move, afterwards if W 'a', then B 'b' hanes, W 'c', B 'd' can seal off White, Black is left with the tactic of living in the corner with the sequence of B 'e', W 'f', B 'g', W 'h' and the excellent move B 'i' (see var a).
]

(;W[eg]LB[eh:a][ef:b][dh:c][ff:d][de:e][cf:f][ed:g][ce:h][dc:i][ee:j][cc:k]C[W62 is a move that can incarnate Cho Hunhyun's style, if B 'a' ataris, then W 'b', B 'c', W 'd' (see var a), Black is no good; if B 'b', W 'a', B 'e', W 'f', B 'g', W 'h', B 'i', W 'j', B 'k', W 'd' (see var b),  although Black gets the corner territory, but White's outside thickness is overwhelming, Black's loss outweighs the gain.]
(;B[ef];W[eh];B[de];W[cf];B[ee];W[ce];B[cd];W[cc];B[bd];W[bc];B[ed];W[dc];B[cg]
;W[be]C[Through 76, Black selects to fight by sacrificing. White practically grabs a big corner and has nothing to complain. Chang Hao must obtain the compensation by attacking, White has reaped considerable territories both on the right side and at the upper left corner, yesterday Cho Hunhyun has suffered loss in territory, today he goes all out to grab territory.];B[hi]LB[ii:a][di:b][dh:c][ch:d][ci:e][ei:f]C[As for B77, if W 'a', then B 'b' jumping out is effective, simply speaking, now if W 'c', B 'd', W 'e' cuts, then B 'f' can capture in the ladder because of B77. So far, it's time for noon break, to be continued at 1:30pm.];W[kj]C[W78 is a good move.];B[lj]LB[qb:a][rc:b]C[B79 has no choice, because Black has the tactic of striking at 'a' or jumping at 'b', Black is still not completely alive.]
;W[fi]LB[ci:a][gb:b]C[W80 is brutal and relentless, now for White to knight capture the two black stones is usual, W80 aims for higher efficiency, because of the defect at 'b', Black also has life and death problem.];B[gi]LB[gh:a][hh:b][hg:c][gg:d][fh:e][hf:f][ig:g][gk:h]C[B81 doubles up and sticks his head out, now White's direct hane and cut at 'a' doesn't work, B 'b', W 'c', B 'd', W 'e', B 'f', W 'g' and B 'h' (see var a).]
(;W[kh];B[lh];W[ji]C[W82 and W84 initiating a ko fight are good moves.];B[jh];W[gh];B[fh];W[ei];B[hh];W[kh];B[li]C[B91 has to give way, Black can not afford to lose this ko fight.];W[gg];B[hg]
;W[ff];B[hf]C[Black has to sacrifice two stones, Black is not optimistic.];W[jh];B[kk];W[hk];B[jj];W[ii]LB[gk:a][hl:b][gl:c][hm:d][bf:e][ad:f][ci:g]TR[cg][dg]C[For the two marked black stones to die peacefully like this is out of the question, if Black in the center becomes thick, Black can put these two stones into motion, like B 'a', W 'b', B 'c', W 'd', B 'e', W 'f' and B 'g' (see var a).]

(;B[gk];W[gl];B[fk]LB[hm:a][bf:b][ci:c][cj:d][hl:e][il:f][im:g][in:h]C[B101 and B103 are very tight, now if White defends the cut at 'a', then after B 'b' ataris, B 'c' jumps out (see var a); if White reinforces at 'd', then B 'e' cuts, followed by W 'f', B 'a', W 'g' and B 'h' (see var b), White's big dragon will also suffer dearly.]
(;W[hm]TR[cg][dg]C[After pondering for a long time, Cho Hunhyun selects to strengthen with 104, so will Chang Hao put his two marked stones into action right away?];B[bf];W[ad];B[ci]LB[dj:a][bk:b][ck:c][bl:d][bj:e][cj:f][bi:g][ch:h][bh:i][bg:j]C[After B107, if White diagonals at 'a', Black can knight at 'b', followed by W 'c', B 'd', W 'e', B 'f', W 'g', B 'h', W 'i' and B 'j', White is short one liberty (see var a).]

(;W[dj];B[bk];W[dl];B[fl];W[bj];B[cj];W[ck];B[cl];W[dk];B[bl];W[ch]LB[bi:a]C[W118 is a good move, 'a' doesn't work as we said before.];B[bi]
;W[bh];B[aj];W[di];B[ho];W[fm];B[pk]C[B125 is a game-deciding move, in the study room pros has made a positional judgement: White is easier and simpler to play.];W[qb]C[W126 is very intriguing, Cho Hunhyun's ability on this can be rated as world #1.];B[rb]LB[pb:a][mb:b]C[The attachment of B127 is certain, now Black is reluctant to connect at 'a' to let White take advantage, now W 'b' becomes sente, White's dragon obtains a gote eye here.];W[ok];B[ol]
;W[qk];B[pl];W[ql]C[W130 and W132 are plays under favorable situations. Through 132, White has encircled the right side, looking at the whole board, though Black falls behind in territory, but if Black can surround 55 points at the bottom by attacking White, Black still has chance of winning.];B[em];W[fn];B[fp];W[dm];B[il];W[hl];B[jn]LB[en:a][cp:b]C[B137 and B139 are very vigorous, Black has adopted the right strategy: encircle the lower side by attacking White. Now if White connects back at 'a', B 'b' defends, White is hard to win the game.]
;W[mb];B[jb]C[B141 concerns about the well-being of Black's group.
];W[cq]LB[en:a]C[W142 is of great urgency, but W 'a' attacking White is very severe.];B[cp];W[dr];B[dq];W[br];B[er];W[bp];B[ds];W[kn]
;B[mn];W[cs]C[W152 starts a ko fight, a subtle change has just happened, as one Go proverb says:  avoid ko in a winning game.];B[cr];W[jm];B[bq];W[in];B[jp]C[B157 is a good move.];W[go]LB[gp:a][ip:b][io:c][jo:d][hp:e][kp:f]C[W158 is a smart move for endgame, if B 'a', then W 'b', B 'c', W 'd', B 'e' and W 'f', Black's big space at the bottom is in trouble.]

(;B[jo];W[gp];B[gq];W[hp];B[hq];W[bn];B[bm];W[co];B[ah];W[pb]C[W168 is a big move and also related to the base for both sides.];B[qc];W[na];B[qa]
;W[oa];B[hj];W[rd];B[rc];W[kb];B[dn];W[cn];B[en]C[B177 and B179 are very big.];W[cm];B[bg];W[dh];B[ag];W[aq]
;B[bs]LB[an:a][ao:b][am:c][ak:d][af:e][fj:f][el:g][do:h][fo:i][fq:j][dr:k]C[If B185 hanes at 'a', W 'b', B 'c' can kill White with a ko, but W 'e', 'd', 'f', 'g', 'h', 'i' and 'j' are all local ko threats, if Black loses this ko fight and White will take at 'k', Black will get into trouble, so Black can not start this ko fight.];W[cq];B[eb]LB[pj:a][qj:b][oi:c]C[B187 is slow, Black should play at 'a', W 'b' and B 'c'.]
;W[nl]C[W188 is alert.];B[oj];W[pj];B[nk];W[om];B[bq];W[an];B[ar];W[ap]C[W196 has to make life in gote, Black has some profit on the left side, the difference in the game has been narrowed a lot.];B[io];W[ik];B[db]
;W[cb];B[ok];W[oi];B[ni];W[mk];B[nj];W[mm]TR[nl]C[White has obviously gained from the marked white stone to 206, it becomes a close game with White's slight advantage.];B[qe]LB[sc:a][se:b][sd:c][rf:d]C[B207 is the fatal mistake under the time pressure, because B 'a' is kind of sente, if White tenukis, the sliding move at B 'b' is very big, White dares not cut at 'c', because Black can atari at 'd'. B 207 completely removes all the aji in this area.
]
;W[rf];B[mf]C[B209 has to reinforce, the game is very close.];W[lo];B[lp];W[ln];B[mp];W[rr];B[rs];W[sr];B[bo];W[ao];B[jl];W[im]
;B[fo];W[gn];B[ll];W[ml];B[kf];W[lm];B[kl];W[eo]LB[do:a][fq:b][ep:c][iq:d][ir:e][jq:f][ip:g][jr:h]C[W228 is a good endgame play, if B 'a', then B 'b', B 'c', W 'd', B 'e', W 'f', B 'g' and W 'h', Black is no good. Not sure whether Chang Hao has overlooked this move, now White is slightly leading.
]

(;B[ep];W[do];B[el];W[da];B[fb];W[km]LB[oo:a][hn:b]C[W234 should be at 'a' or 'b', it is better than W234 in the real game.];B[oo];W[on];B[pp];W[qn];B[rq]
;W[rp];B[gf];W[fg];B[fe];W[ip];B[iq];W[hn];B[ko];W[mj];B[mi];W[ra];B[sa];W[am]
;B[al];W[sc]LB[mg:a]C[W250 throws in, the hane of W254 is an exquisite endgame play, W254 is worth gote 3 points, because later Black has to strengthen at 'a'.];B[ea];W[ca];B[ka];W[la];B[ja];W[fj];B[gj];W[ek]TR[eo]C[White gets one more point with W260 and W262, thanks to the marked cutting stone.]
;B[jf];W[ig];B[me];W[ke];B[qs];W[jk];B[kj];W[sq];B[ra];W[pa];B[mg];W[sd];B[af]
;W[ae];B[ai]C[Cho Hunhyun luckily won the game by half point, the series is tied at 1:1, after one day break, the decisive game 3 will take place on 12/14.])
(;B[do];W[fq];B[ep];W[iq];B[ir];W[jq];B[ip];W[jr]))
(;B[gp];W[ip];B[io];W[jo];B[hp];W[kp]))
(;W[dj];B[bk];W[ck];B[bl];W[bj];B[cj];W[bi];B[ch];W[bh];B[bg]))
(;W[hm];B[bf];W[ad];B[ci])
(;W[cj];B[hl];W[il];B[hm];W[im];B[in]))
(;B[gk];W[hl];B[gl];W[hm];B[bf];W[ad];B[ci]))
(;W[gh];B[hh];W[hg];B[gg];W[fh];B[hf];W[ig];B[gk]))
(;B[eh];W[ef];B[dh];W[ff])
(;B[ef];W[eh];B[de];W[cf];B[ed];W[ce];B[dc];W[ee];B[cc];W[ff]))
(;W[cg];B[ch];W[cf];B[dh];W[fq]C[If White tenukis in the upper left corner...];B[cc];W[eb];B[cd];W[ce];B[ba]C[Black can live in the corner.]))
(;B[np];W[pe];B[qe];W[qf];B[qg];W[rf];B[pg];W[qh];B[rg];W[rh];B[re];W[og];B[sf]
))