SOurce["Detailed Analysis on Wu's Famous Games. Vol 1" pp 1-94. People's Sports \[China\], 1984]
KoMi[0]
Comment[Go Seigen \(Wu\) vs. Fujisawa
\(The 1st Japan's Strongest Deciding Matches\)
Black: Fujisawa Hosai, 9d
White: Go Seigen \(Wu\), 9d
Date: January 9-10, 1957
Place: Atami]
;
Comment[This is my first encounter with Fujisawa 9 dan after the 10-game series 4 years ago \[1953; the 3rd Wu-Fujisawa 10-game series\].
Fujisawa 9 dan deliberates on every move; never hasty. His steady and thick style has well settled in the Go world.
B #1 takamoku \[\(4,5\) point at the corner\] is rarely seen in Fujisawa 9 dan's game. It's probably a personal inclination intriguered by a recent game of mine. This will be explained a little bit later. ]
Black[pe]
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Comment[\(* Fujisawa 9 dan's original given name was Kuranosuke, later changed to Hosai. In his early years, as one of the strongest young players, he was regarded as unbeatable playing Black. He was also the first player promoted to 9 dan after Honinbo Shusai \[the last Meijin\]. In 1943, as a 6 dan, he played Go Seigen \(then 8 dan\) a 10-game series in which he played all games with Black. Fujisawa won the series 6-4. Then in 1951, a 4-game series with Wu \(Wu won all four\). In 1952, a 6-game ser
ies \(Wu 5-1\) and the second Wu-Fujisawa 10-game series \(Wu 7-2-1 with 1 tie\). Finally in 1953, the third Wu-Fujisawa 10-game series, which ended after Wu led 5-1.
Fujisaw 9 dan's first game after name change was in \[this\] Japan's Strongest Deciding Matches, against Sakata Eio. Fujisawa played White and adopted a move-imitating strategy, but lost at the end to Sakata. This game here is the second by Fujisawa after his name change.]
White[qp]
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Comment[B #1 and #3 occupying takamoku points at diagonal corners is the opening Suzuki Etsuo 7 dan used in a game versus me. Fujisawa 9 dan was then the referee, and he watched the game from the beginning to the end. That game was won by Black. Perhaps Fujisawa 9 dan learned some winning strategy from the game, and here he applies the same "diagonal takamoku" opening.]
Black[do]
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Comment[W #2 and #4 play komoku \[\(3,4\) point at the corner\], choosing a most common opening strategy. So far it's exactly the same as the game between Suzuki and me mentioned before. To resemble kendo \[Japanese fencing\], B raises his sword way above his head, ready to cut down, while W levels his sword, pointing to opponent's throat.]
White[cd]
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Letter[po]
Comment[In the game mentioned before, Suzuki 7 dan suddenly played B #5 at a\[Q5\], an unexpected odd move. I guess Fujisawa 9 dan probably would not use such a novel move against me. However it was not impossible, but I was ready. In fact, even if Ba, there is nothing to be afraid of.
\(* Indeed, B didn't play so \[Ba\], but #5, a common play, instead *\)]
Black[pc]
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Comment[W #6 \[D3\] is the normal way against takamoku \[\(4,5\) point\]. Also, allowing B to have shimari \[corner enclosure move\] at both corners would be disadvantageous to W in an opening. Therefore, #6 is also absolutely the move.]
White[dq]
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Comment[B #7 is a basic joseki.
Fujisawa 9 dan used this move when he played 10-game series with me, and he had used it before that. Also, he chose this joseki in Mainichi Shimbon sponsored Honinbo Sen. This is a shape he likes.
If W plays here right away ---
\[*** type 'B' \(CAPITAL B!\) to see variation 1 for W #8.\]
\[*** type 'C' to see variation 2.\]]
Black[fp]
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Comment[Anyway, if W acts at lower left right away, immediate fights are almost certain to follow \[as the variations show\], so I adopted tenuki \[ignoring lower left\], and turned to upper left. W #8 shimari \[corner enclosure\].]
White[fc]
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Black[er]
Comment[B #9 is a joseki move. This move ---
\[*** type 'B' to see a variation.\]
Next, if W wants to activate one W stone \[D3\] ---
\[*** type 'C' to see ref. 1\]
\[*** type 'D' to see ref. 2\]]
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White[bo]
Comment[\[Conclusion on variations of W #10\] When B #9 \[E2\], W can live simply with D2 block. However, if W just attempts to live here, it's definitely not the best strategy.
W #10 \[B5\], a "quick shift" strategy, is also a joseki. This is a strategy I like. I have used it many times before; it's a light way to play.]
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Black[cp]
Comment[B #11 of course. If ---
\[*** type 'B' to see a variation.\]]
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White[cl]
Mark[bo][cl]
Comment[W #12 \[C8\] and #10 \[B5\] are related moves. The goal is to sacrifice D3 stone, forming a moyo at the left side.]
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Black[oq]
Comment[B #13 gets the biggest point on the board.
If this move to play at a\[L17\], it's also big, but #13 gakari is urgent.]
Letter[kc]
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White[lp]
Letter[lq]
Comment[W #14 could also consider to play at a\[M3\]. It's difficult to say which one is better.
If Wa for W #14, it would become a different game.]
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Black[on]
Comment[B #15 joseki.
If Ba\[O4\] kosumi, it's also a joseki, and it's a solid way to play.
\[*** type 'B' to see this joseki.\]]
Letter[np]
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White[qm]
Comment[W #16 is joseki.
Wa\[P5\] is also a move ---
\[*** type 'B' to see this variation.\]
But as a result \[of this variation\], this part is almost settled, and W should not be satisfied.]
Letter[oo]
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Mark[lp]
Comment[B #17 good point.
\(* Since W M4 \[marked\] is "high" \[at line 4\], B #17 also plays high to squeeze M4 stone. *\)
Besides #17, there are several other big points on the board, but #17 is the most urgent.
Next move W #18 is a difficult point of this opening, it's also a key to decide the outcome of the game.
Under this situation, most common plays \[for W #18\] are ---
\[*** type 'B' to see var. 1\]
\[*** type 'C' to see var. 2\]]
Black[jp]
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Comment[This move, W #18, is still better off to adopt the plays shown in variations 1 and 2. W #18 led extremely unfavorable influence \[to W\] later in the game. This is the intersection point of the opening, and based on the result, this move \[W #18\] is very bad.]
White[op]
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Letter[pp]
Comment[B #19 certainly.
This move, if Ba \[Q4\] instead ---
\[*** type 'B' to see this variation.\]]
Black[np]
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Letter[oo]
Comment[W #20 is the only move, and it's a subsequential move following #18 \[P4\].
Wa\[P5\] instead would be mediocre.
Next, how should B #21 respond? Let's take a look.
\[*** type 'B' to see ref. 1\]
\[*** type 'C' to see ref. 2\]]
White[no]
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Comment[Therefore, B #21 \[Q4\] to atari from this side is a good move.]
Black[pp]
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Comment[W of course #22 connects.]
White[oo]
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Comment[B #23 is also the only move.]
Black[po]
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Letter[nq]
Comment[W #24 can only cut from here. If W cuts from a\[O3\] ---
\[*** type 'B' to see a short variation.\]]
White[pq]
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Comment[If B #25 \[R3\] plays a\[N5\], the ladder wouldn't work, and B would be in serious trouble.]
Letter[mo]
Black[qq]
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White[pr]
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Comment[These couple of moves are certain; no variations.]
Black[qo]
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White[nq]
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Letter[qk][qi]
Comment[To B #29, it's a settled shape.
Although locally speaking, it looks like a "fair trade." But B #29 has a perfect distance from the shimari at upper right corner. Counting this, W is at the lower hand.
Next if Wa jumps, Bb is a good point; or if Wb, then Ba is a good point.
In short, this unfavorable result is caused by the "improper taste" of W #18 and #20 \[P4-O5\].]
Black[pm]
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Letter[qk][ql]
Comment[W #30 is still better to jump at a\[R9\] \[despite the fact that, pointed out previously, B R11 would be a good point\].
Now, if Bb\[R8\] cut ---
\[*** type 'B' to see this variation.\]]
White[pl]
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Black[ol]
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White[pk]
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Letter[rk]
Black[qi]
Comment[B #33 is still an extremely good point. Next Ba\[S9\] is severe. W is indeed difficult now.
\[*** type 'B' to see a variation for the next move, W #34\]]
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Letter[ok]
White[rj]
Comment[W #34 has no other choice. If this move plays a\[P9\] ---
\[*** type 'B' to see this variation.\]]
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Comment[B #35 is thick. This move to play at a\[L17\] is a big point, but then W would get P9, aiming next at b\[R13\] invasion.
B #35 fully exhibits Fujisawa 9 dan's thick and solid style.]
Black[ok]
Letter[kc]
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White[kc]
Comment[If W #36 plays a\[S11\], it would be a good point too. Then B would get b\[K16\] for sure. Hard to say which one is better.]
Letter[ri][jd]
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Black[qj]
Comment[B #37 rush is a common method to test opponent's response.
If W #38 blocks at R9 ---
\[*** type 'B' to see this variation.\]]
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White[rk]
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Comment[B #39 turns to invade the left side. Extremely good timing. Next B aims to play C13, at the meantime threatens to attack two W stones \[C8-B5\] below. ]
Black[cj]
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White[bp]
Comment[If W #40 plays directly at C12, B would certainly block at B4. W #40 to extend is also a big move regarding to territory. W cannot miss it.]
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Black[cq]
Comment[B of course plays #41.]
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White[ch]
Comment[W #42 too is certainly the move. To let B play a\[C13\] would be unbearable.
\(* W #42 forms a squeeze attack against one B stone \[C10\]. What should B play next? *\)
\[*** type 'B' to see a variation for B's next move, #43\]]
Letter[cg]
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Black[dn]
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White[dm]
Comment[W #44 is not a good-taste move, but there is no other better moves. If played at a\[C7\], Bb\[D9\] and W is sealed inside.
Also, if W #44 plays c\[E8\] jump, it would leave B a move at d\[B6\] to capture two W stones. This way, W loses territory.]
Letter[cm][dk][el][bn]
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Black[dk]
Letter[ej]
Comment[Ba\[E10\] instead of #45 would lack the pressure on W.]
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White[dl]
Comment[W #46 forms a bad shape. But again, W has no other choices.]
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Black[fk]
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White[bq]
Comment[If W doesn't play #48 now, and let B to play here, not only B would remove W's base, B also gains territory. Very big.]
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Letter[ri]
Comment[B #49 tsuke \[squeeze move\] to deprive the eyeshape of W, thus forcing W to escape, is indeed a severe tesuji, although Ba\[S11\] can also be considered. After that ---
\[*** type 'B' to see Ba variation.\]]
Black[rm]
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White[pj]
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Black[ph]
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White[rl]
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Black[rn]
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White[oj]
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Black[nj]
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White[ni]
Letter[oh][oi]
Comment[If Wa\[P12\] oshi \[press move "from above"\] for #56 ---
\[*** type 'B' to see this variation.\]
This is the key point of the game; #56 hane is the only move.
When #56, what if B cut at b\[P11\] for #57? ---
\[*** type 'C' to see this variation for B #57.\]]
(
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Comment[B #57 double hane. Good move. This move is indeed severe, and difficult for W to handle.]
Black[mi]
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White[mj]
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Black[nk]
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White[oh]
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Black[mh]
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Comment[W has no other choices here.]
White[og]
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Comment[If Ba\[Q14\] instead for #63, some weakness would be remained underneath, hence \[Ba\] would not be so solid. However, if Ba forces Wb\[O14\], next Bc\[M16\] is a smooth pace. If so, this way \[Ba\] isn't bad either.]
Letter[pf][nf][ld]
Black[qf]
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Letter[qg]
Comment[W #64 employs a deep scheme.
#64's intension is, if Ba ---
\[*** type 'B' to see a reference.\]]
White[pf]
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Black[of]
Comment[Against W #64 \[Q14\], B #65 and...]
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White[pg]
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Black[qg]
Comment[...\[and\] #67 are the strongest response.
Next ---
\[*** type 'B' to see a variation for W #68.\]]
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White[qe]
Comment[W #68 is the only move.
Also, if W atari at P15 \[in the previous variation, W atari at O14\] ---
\[*** type 'B' to see another variation for #68.\]]
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Black[oe]
Comment[B #69 is also the only move.]
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White[qd]
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Black[qc]
Comment[W's plan is to catch some chances to apply tesuji's at the corner.]
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White[rf]
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Black[rg]
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White[re]
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Black[sf]
Comment[B #75 is absolutely the only move. This move ---
\[*** type 'B' to see var 1\]
\[*** type 'C' to see var 2\]]
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White[rc]
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Black[rb]
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White[qh]
Comment[When B #77 \[R18\], W #78 throws in a stone first is tesuji.
\[*** type 'B' to see var 1\]
\[*** type 'C' to see var 2\]]
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Black[rh]
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White[sg]
Comment[W #80 is tesuji related to #78 \[throw-in move at R12\].]
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Black[sh]
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Comment[If Wa\[S11\] for #82 ---
\[*** type 'B' to see this variation.\]]
Letter[ri]
White[sd]
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Comment[B #83 is emergent, and it's the best move at this moment.
Next ---
\[*** type 'B' to see a variation for W #84.\]]
Black[ri]
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Comment[Therefore...]
White[nm]
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Black[om]
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Comment[...W decides to escape. No choice.]
White[ng]
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Comment[With B #87, B is ensured to win this semeai. However, more or less, there is still something left at the corner for W to use ---
\[*** type 'B' to see a reference\]]
Black[sg]
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Comment[\(* To summary this local fight, although B wins the semeai at the corner, W also gains chance to play #86 and #88 \[O13-N13\] to secure the big W team. This is the result of tesuji such as #78 throw-in \[at R12\]. *\)]
White[mg]
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Comment[B #89 to strengthen the corner, at the same time aiming at L13 boshi \[cap move\] to attack W.]
Black[mc]
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Comment[W #90 jumps, of course.]
White[kg]
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Letter[nn]
Comment[B #91 sente gains; good timing. \[Normally\] when Ba\[O6\] is still sente, B should save #91. But under present situation, #91 is appropraite.]
Black[qr]
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White[or]
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Comment[To B #93, this local battle comes to a pause.]
Black[lj]
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Letter[mk][hp][ld]
Comment[W #94 has three purposes. First is to attack three B stones \[D9\]; second prepare to break the ladder when Wa\[N9\] \(Although right now it doesn't break the ladder, but W can employ #94 as a base, using the ladder fact, to establish a fighting plan\); third is to aim at b\[H4\] invasion. However, although #94 is such a multi-purpose move, it'd still be better played at c\[M16\]. Wa kosumi is not only the correct move, but very solid too.]
White[fm]
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Black[ke]
Comment[B #95 should play Ba\[M15\], since if Ba, W cannot L15 -- B would have Bb\[M14\] against W L15, and W's weakness is exposed.
Anyway, as soon as W is separated by B #95, W's middle team becomes thin, and W's plan of #94 \[F7\] to attack three B stones is out of reach. Therefore, as said previously, W \[#94\] should play c\[M16\] to protect.]
Letter[le][lf][ld]
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White[ld]
Comment[Now since B has advanced to #95 \[L15\], W has no choice but to counterattack.]
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Black[le]
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White[me]
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Black[md]
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White[ne]
Comment[Next W is aiming at Wa\[P17\] tesuji.]
Letter[oc]
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Black[jc]
Comment[B spent 33 minutes on #101. If Ba\[P17\] to protect the weakness at the corner, W would Wb\[J17\], and the middle two B stones are surrunded. This would be following W's plan, and B of course is not willing to do so.]
Letter[oc][ic]
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White[jb]
Comment[W #102 hane certainly.
Next ---
\[*** type 'B' to see a variation for B #103.\]]
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Black[kd]
Comment[Therefore B #103 leads a certain sequence.]
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White[lc]
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Letter[oc][qb]
Black[mb]
Comment[B #105 sagari \[extending downwards\] prevents Wa\[P17\] tesuji, while forcing W to play low; an efficient move \[#105\]. Although Wb\[R18\] aji is still remained at the corner, but at this moment, to emphasize the fight at middle, ignoring the corner temperorily, is strategically correct.]
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White[ic]
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Black[jd]
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White[kb]
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Letter[id]
Comment[Since B has Ba\[J16\] sente, B #109 could have a big jump. This is the result of pervious few moves \[starting with #103 \(L16\)\].]
Black[ig]
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White[id]
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Black[jf]
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White[jh]
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Black[ih]
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Comment[To here, not only W's plan to attack three B stones at the left is frustrated, W's big team from right to middle is now under attack.
B's lead is overwhelming.]
White[ji]
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Black[fd]
Comment[B #115 "touch" to test W's reaction. A severe move. The purpose of it ---
\[*** type 'B' to see a reference.\]]
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White[gd]
Comment[W #116 is the only way to resist.]
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Black[ec]
Comment[B #117 is tesuji.]
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White[ed]
Comment[If W #118 atari from F15 ---
\[*** type 'B' to see the result of this careless move.\]]
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Black[fe]
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White[dc]
Comment[If W #120 connects at G17 ---
\[*** type 'B' to see this variation.\]]
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Black[gc]
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White[eb]
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Black[fb]
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White[ec]
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Black[hd]
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White[gb]
Comment[W connects underneath with #126...]
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Black[ge]
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White[hb]
Comment[...and #128. At the same time, however, these moves also make B's middle thick.]
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Black[jk]
Comment[As soon as the thickness is built up at the upper side, B immediatly turn his spear toward the middle -- #129 boshi \[cap\]. To attack from this side is the correct direction.
Now the purpose of B #115 touch move \[F16\] is clear; quietly watch W's reactions to decide the direction to attack W's middle group.]
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White[ii]
Comment[When W #130...]
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Black[hi]
Comment[...B #131 hane. W is extremely painful.
Next ---
\[*** type 'B' to see a variation for W #132.\]]
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White[kk]
Comment[W #132. No other way to escape.
Next if Ba\[L10\] to separate W, Wb\[J9\] is the related \[to #132\] tesuji. But not matter what, under this situation, W is bounded to face a painful fight.]
Letter[kj][ik]
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Black[jl]
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White[hj]
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Black[gi]
Letter[ij][kj]
Comment[If B #135 cuts at a\[J10\], Wb\[L10\] to back up, and it would be hard for W to go for the kill.]
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White[ie]
Comment[When #136, W thought if not rush a move here, W would be unable to attack B in the future. So #136 tries to counterattack. But this move is wrong. The correct move would be Wa\[J9\] to defend first. If so, W would have G10 next, upon which B has to respond with Bb\[E12\]. After that, Wc\[H7\] to escape, even aiming at Wd\[H4\] invasion. Thus it would be still a unclear, long battle.]
Letter[ik][eh][hm][hp]
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Black[lf]
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White[lg]
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Black[gj]
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White[ik]
Comment[When W #140...]
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Black[hl]
Comment[...B #141 suddenly throws out a violent attack. W is in a deeper trouble.
Against #141's powerful attack ---
\[*** type 'B' to see a variation for W #142.\]]
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Comment[W #142 is the only move to find a way to escape.]
White[kj]
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Black[kl]
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White[lk]
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Black[mk]
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White[ll]
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Comment[To here are sure moves by both sides. It has developed to such a situation that it seems impossible for W to unconditionally escape \(without paying anything, that is\).]
Black[lm]
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Comment[W is alrealy in extremely danger, but whne W #148 atari...]
White[li]
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Letter[il]
Comment[...B #149 connects without hesitation. If this move were to connect at a\[J8\], saving #149 \[N10\] point as a ko, then it would be a worry-free ko for B. Thus the situation would be simplied, and W would be almost hopeless.
When the game was played to here, Fujisawa 9 dan had used all his given time; he was now in byo-yomi.]
Black[mj]
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Comment[W #150 tesuji, the only move to escape. If Wa\[N8\] instead, Bb and W has no move to follow.
Also, if Wb ---
\[*** type 'B' to see this variation.\]]
Letter[ml][mm]
White[km]
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Letter[ml][mm]
Comment[B #151 is the best response \[to W #150\]. Next if Wa\[N8\], Bb, and W still cannot escape.]
Black[kn]
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Letter[mm]
Comment[W #152 and #150 are related tesuji's.
Next if Ba\[N7\] to cut W apart ---
\[*** type 'B' to see this variation for B #153.\]]
White[ln]
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Black[jm]
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White[mm]
Comment[When W #154, if Ba\[N8\] cut next, it would be a ko.
However, even if B tenuki \[ignore\] here, letting W to play one more move, W still cannot really turn it around. That is, after B tenuki \[playing somewhere else\], even if Wa to connect, B still can play b\[N6\] to threaten with a ko. When Wc connects, Bd cleans it up, and B's middle becomes very thick. If so, W team only barely escapes from danger, but globally, W would be far behind.]
Letter[ml][mn][nn][lo]
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Black[pd]
Comment[After careful observation over the whole board, B decisively connects with #155. B realizes that even if he doesn't force a ko, B would have had enough. From this point of view, B #155 is indeed a wise choice.
Fujisawa 9 dan has only 1 minute left \[the "last minute" that a player in byo-yomi uses over and over\], but he was still able to calmly judge the global situation. This fully exhibits his steady and solid style.]
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White[ko]
Comment[W #156's purpose is to find a way to finish the ko here.]
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Black[mn]
Letter[jn]
Comment[B #157 cut this way is dangerous. Ba\[K6\] to connect, insisting to make a worry-free ko, is the most solid move.
Now with this #157 cut, this ko becomes heavy. That is, if B will lose the ko, he will have to pay.]
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White[km]
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Black[cn]
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White[bn]
Comment[W #160 has to respond. If W tenuki and, say, finish the ko at right \[by capturing L6 stone\] ---
\[*** type 'B' to see a reference\]]
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Black[lm]
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White[kf]
Comment[W #162 is the last losing move.
This move ---
\[*** type 'B' to see a variation.\]
#162 threat is too small. Also, even if Wa\[H13\] for #162, letting B to finish the ko, then Wb to cut B -- globally, W is still short -- W's only chance is to play as the variation shows.]
Letter[hg][hh]
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Black[lo]
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White[if]
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Black[lq]
Comment[When B gets #165, this game is alreay over.
The gap between two sides is quite big. Facing an overwhelming lead of B, W is impossible to turn it around. The moves followed are only for own amusement, not really worth commenting.
\[Wu's overview of the game is shown later.\]]
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White[kp]
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Black[kq]
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White[jo]
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Black[ip]
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Comment[\(Overview\) Looking back the game, at the opening period, because of some inappropraite personal inclinations in #18 and #20, when B #29, it was not optimistic for W. Then a fight initiated by W #30 made own \[W\] stones heavy. As a result, W was attacked severely and cleverly. \(To be continued\)]
White[io]
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Black[hp]
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Comment[\(Overview; continued\) Since #68 cut, W looked for chances to maneuver over the upper right corner, hoping to settle a team at the right side. During this complicated conflict, although W achieved the goal to get rid of the trouble, but then #94 was played at wrong direction, thus B #95 started another violent fight. \(To be continued\)]
White[eg]
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Black[gg]
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White[br]
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Comment[\(Overview; continued\) W attempted to counter B's violent attack and rushed with #136. This move was a serious mistake, led to B's sente attacks -- W fell to being one-sided attacked. Although W tried to counterattack, but never got the chance. \(To be continued\)]
Black[pi]
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White[oi]
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Black[nn]
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White[mo]
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Comment[\(Overview; continued\) The battle continued to #154, finally making a ko. This ko was very easy to B, since win or loss \[of this ko\] wouldn't affect B's being leading. But it was on the other hand a huge, live-or-die ko to W. With such a difference in lightness and heaviness, B eventually calmly played #155, filling up the holes at upper right corner. \(To be continued\)]
Black[mr]
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White[ln]
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Comment[\(Overview; continued\) W #156 was the final struggle. Because of the improper response of B #157, the nature of the ko changed. W suddenly saw a hope to turn it around, being obviously down. Unfortunately, W #162 was less careful, finding a ko threat that was too small. When B #163 finished the ko, the outcome was then decided. \[End of overview by Wu.\]]
Black[bh]
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White[bg]
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Black[lo]
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Comment[\[Overview by Katsumoto, who collected these comments by Wu.\]
\(* From opening to middle game, Fujisawa 9 dan's unique thick and solid style was vividly shown on the board. He fully exhibited his careful yet sharp character, and using thickness to apply violent attack is Fujisawa 9 dan's specialty. We can see in this game, facing a strong oppoent, B played calmly, attacked completely, and advanced breathlessly, never giving W much chance. This is indeed a recent masterpiece by Fujisawa 9 dan. *\)]
White[qs]
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Black[rs]
;
White[ln]
;
Black[dh]
;
White[cg]
;
Black[lo]
;
White[se]
;
Black[sb]
;
White[ln]
;
Black[km]
;
White[dr]
;
Black[jj]
;
White[eq]
;
Black[jg]
;
White[je]
;
Black[nr]
;
White[os]
;
Black[rq]
;
White[gn]
;
Black[fq]
;
White[ij]
;
Black[ml]
;
White[ki]
;
Black[ho]
;
White[hn]
;
Black[il]
;
White[jn]
;
Black[dg]
;
White[df]
;
Black[eh]
;
White[ci]
;
Black[dj]
;
White[fr]
;
Black[gr]
;
White[es]
;
Black[bk]
;
White[dp]
;
Black[fo]
;
White[bl]
;
Black[bi]
;
White[gs]
;
Black[hr]
;
White[ff]
;
Black[ee]
;
White[ef]
;
Black[gf]
;
White[nd]
;
Black[de]
;
White[ce]
;
Black[co]
Comment[To #233, B leads by more than 10 points on the board. No more changes seem likely. B has won for sure.]
;
Comment[Total of 233 moves. B wins by resignation.
Time given: 10 hours apiece
Time consumed:
White: 8 hours 43 minutes
Black: 9 hours 59 minutes
\[*** END OF THE GAME ***\]]
)
(
;
Name[variation]
AddWhite[se]
AddEmpty[kf]
Comment[W should play T15.]
;
Black[sb]
Comment[When B #163...]
;
White[km]
Comment[...W captures back the ko...]
;
Black[pi]
Comment[...B #165 threatens...]
;
White[jn]
Comment[...W can ignore it! #166 finishes the ko...]
;
Black[oi]
Comment[...Finally, when B #167 cuts...]
;
White[gg]
Comment[...B #168 gets the emergent point, attacking, and eventually trying to capture, the big B team. There is no other way for W to win the game.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[reference]
AddWhite[jn]
AddEmpty[kn][bn]
Comment[\[Say W #160 captures L6 stone...\]]
;
Black[bn]
Comment[B would #161 to block...]
;
White[cr]
;
Black[dr]
;
White[ar]
;
Black[cs]
;
White[bs]
Comment[...To here it's another ko. But this is *after* B cuts down three W stones \[D8\] then makes a worry-free ko. This plan \[by W\] is not worth considering.
\[*** end of reference\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Comment[\[When W #152 \(M6\)...\]]
Name[variation \(B #153\)]
;
Comment[If B #153 to extend...]
Black[mm]
;
Comment[...W has #154...
\[This shows the importance of W #150 \(L7\).\]]
White[jm]
;
Black[il]
;
White[ml]
;
Black[mn]
;
Comment[...#158 and W escapes.
\[*** end of variation\]
\[*** type 'g153' to get back to main branch.\]]
White[nn]
)
)
(
;
Comment[\[If N7 instead of L7 for W #150...\]]
AddEmpty[km]
AddWhite[mm]
Name[variation]
;
Black[ln]
;
White[ml]
;
Black[nn]
;
White[mn]
;
Comment[...To B #155, W moves don't work.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
Black[mo]
)
)
(
;
Name[variation \(W #142\)]
Comment[\[When B #141 \(H8\)...\]]
;
White[il]
Comment[If W to rush...]
;
Black[im]
;
White[jm]
Comment[...and cut...]
;
Black[kl]
;
White[hm]
;
Black[hk]
;
White[ij]
;
Black[in]
Comment[... ...]
;
White[lk]
;
Black[mk]
;
White[ll]
;
Black[kj]
Comment[...To B #153, W collapses.
\[*** end of variation\]
\[*** type 'g142' to get back to main branch.\]]
)
)
(
;
Name[variation]
Comment[\[When B #131 \(H11\)...\]]
;
White[ik]
Comment[If W #132 plays this way...]
;
Black[ij]
;
White[jj]
;
Black[hj]
;
White[kk]
Comment[... ...]
;
Black[jl]
;
White[kj]
;
Black[lm]
Comment[...To B #139 and W is in danger.
\[*** end of variation\]
\[*** type 'g132' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddWhite[gc]
AddEmpty[dc]
Comment[\[Suppose W #120 connects here...\]]
;
Black[ii]
Comment[B would #121 and...]
;
White[jj]
;
Black[hk]
Comment[...\[and\] #123 first to press W's middle team...]
;
White[jl]
Comment[...W is forced to jump...]
;
Black[dd]
Comment[...Then B turns to upper left... atari...]
;
White[ee]
;
Black[de]
Comment[...and atari...]
;
White[ef]
;
Black[cc]
Comment[...To B #129, W's loss at the corner is unbearable.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddWhite[fe]
AddEmpty[ed]
Comment[\[If W chose L15 for #118...\]]
;
Black[ed]
Comment[B would lead the following sequence in a hurry...]
;
White[ee]
;
Black[gc]
;
White[fb]
;
Black[gb]
;
White[eb]
Comment[... ...]
;
Black[fa]
;
White[dc]
;
Black[hd]
;
White[ge]
;
Black[ib]
Comment[... ...]
;
White[hb]
;
Black[ie]
;
White[ia]
;
Black[hc]
;
White[ib]
;
Black[he]
;
White[ga]
;
Black[ha]
Comment[...To here, it is a "worry-free" ko for B, and W cannot take it.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[reference]
Comment[\[When B #115 \(F16\)...\]]
;
White[ec]
Comment[If W #116 backs up...]
;
Black[gd]
;
White[gc]
;
Black[cf]
Letter[ce]
Comment[...then B #119 or Ba\[C15\].
\[*** end of variation\]
\[*** type 'g116' to get back to main branch.\]]
)
)
(
;
Name[variation \(B #103\)]
Comment[\[When W #102 \(K18\)...\]]
;
Black[kb]
Comment[If B #103 cross-cut...]
;
White[jd]
;
Black[kd]
;
White[ic]
;
Black[lc]
;
White[je]
Comment[...To here, although B captures a stone at M16, but W seals tightly from outside, and B gains almost nothing.
\[*** end of variation\]
\[*** type 'g103' to get back to main branch.\]]
)
)
(
;
Comment[\[Later...\]]
Name[reference]
;
Comment[W has tesuji of O18 cut and...]
White[qb]
;
Black[se]
;
Comment[...Q18 extend.
\[*** end of reference\]
\[*** type '\[' to get back to main branch.\]]
White[pb]
)
)
(
;
Name[variation \(W #84\)]
Comment[\[When B #83 \(S11\)...\]]
;
Comment[If W #84 hane...]
White[sb]
;
Black[pi]
;
White[oi]
;
Comment[...When B seals, B will win the semeai. That is...]
Black[ng]
;
Comment[Even if W #88 to...]
White[qk]
;
Black[sl]
;
White[sj]
;
Black[nh]
;
Comment[...\[to\] #92 to reduce B's liberties...]
White[se]
;
Black[qn]
;
White[sg]
;
Comment[...to B #95, it becomes a double-ko, and W cannot win it.
\[*** end of variation\]
\[*** type 'g84' to get back to main branch.\]]
Black[ql]
)
)
(
;
Comment[\[If S11 for W #82...\]]
AddEmpty[sd]
AddWhite[ri]
Name[variation]
;
Black[sd]
;
White[se]
;
Black[pd]
;
Comment[...To here, it's a "loose ko" \[B stones are not "tight"; they have more than one liberties. W stones, on the other hand, are "tight\]. W clearly fails.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
White[sg]
)
)
(
;
Name[variation 1]
AddWhite[sb]
AddEmpty[qh]
Comment[If W #78 hashly hane at T18...]
;
Black[se]
;
White[qb]
;
Black[ra]
Comment[W is not good.
\[*** end of variation 1\]
\[*** type '\[' to get back to main branch.\]]
)
(
;
Name[variation 2]
AddWhite[sd]
AddEmpty[qh]
Comment[Or if T16 for W #78...]
;
Black[sg]
;
White[se]
;
Black[sb]
;
White[qh]
;
Black[rh]
;
White[ri]
;
Black[sc]
;
White[pi]
;
Black[pd]
Comment[...To B #87, although W gets three B stones, W stones at the corner are unconditionally captured. W fails.
\[*** end of variation 2\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation 1]
AddBlack[pd]
AddEmpty[sf]
Comment[If B reduces W's liberties from outside with Q16 \[instead of T14\]...]
;
White[rc]
;
Black[rb]
;
White[sf]
Comment[W #78 is tesuji. Next a\[T16\] and b\[T13\] are miai. B fails.
\[*** end of variation 1\]
\[*** type '\[' to get back to main branch.\]]
Letter[sd][sg]
)
(
;
Name[variation 2]
AddBlack[rc]
AddEmpty[sf]
Comment[Or \[unlike in variation 1\], if B #75 plays R17 sagari \[extending downwards\]...]
;
White[sg]
;
Black[sh]
;
White[rh]
Comment[...W would win this semeai.
\[*** end of variation 2\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddWhite[oe]
AddEmpty[qe]
Comment[\[If W rashly cuts at P15...\]]
;
Black[nf]
;
White[qe]
;
Black[pd]
;
White[re]
;
Black[qd]
Comment[W fails.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation \(W #68\)]
Comment[\[When B #67 \(R13\)...\]]
;
White[nf]
Comment[If W #68 simply atari...]
;
Black[oe]
;
White[ng]
Comment[...When W #70 connects...]
;
Black[kd]
Comment[...B #71 is a severe move. This way, W would be under a splitting attack. Difficult for W.
\[*** end of variation\]
\[*** type 'g68' to get back to main branch.\]]
)
)
(
;
Comment[\[W #64's intension is...\]]
Name[reference]
;
Comment[If B #65 plays this way...]
Black[qg]
;
Comment[...W #66 and...]
White[mg]
;
Black[lg]
;
Comment[...\[and\] #68.
Had #64 \[Q14\] played Wa\[O14\], B would get b\[M16\] and W stones at upper side are influenced.
\[*** end of reference\]
\[*** type '\[' to get back to main branch.\]]
White[mf]
Letter[nf][ld]
)
)
(
;
Name[variation]
AddWhite[oh]
AddEmpty[ni]
Comment[\[Suppose P12 oshi for W #56...\]]
;
Black[ni]
Comment[After B #57 and...]
;
White[oi]
;
Black[mg]
Comment[...\[and\] #59, W is in trouble.
\[*** end of variation.\]
\[*** type '\[' to get back to main branch.\]]
)
(
;
Name[variation \(B #57\)]
Comment[\[When W #56 \(O11\)...\]]
;
Black[oi]
Comment[If B #57 cut...]
;
White[pi]
;
Black[oh]
;
White[qh]
Comment[...W would atari then cut...]
;
Black[rh]
;
White[qg]
;
Black[rg]
;
White[qf]
;
Black[rf]
;
White[qe]
;
Black[ri]
Comment[...Here is a certain sequence...]
;
White[of]
;
Black[nh]
Comment[...after W #68 and B #69 exchange...]
;
White[re]
Comment[...W #70 blocks...]
;
Black[qk]
Comment[...B has no way but #71 and...]
;
White[ql]
;
Black[qn]
Comment[...\[and\] #73. Thus a semeai \[capturing race\]. Although B wins this semeai, but even though W is captured, the loss is at most 20 points, but...]
;
White[pd]
Comment[...\[but\] with W #74, not only W destories B corner, W has subsequent attacks against B. Moreover, W has Wa\[N11\] aji. Based on this result, W is not in bad shape even if giving up 10 stones.
\(* But B didn't hastily cut at P11, instead applied a powerful counterattack. *\)
\[*** end of variation\]
\[*** type 'g57' to get back to main branch.\]]
Letter[mi]
)
)
(
;
Comment[\[Suppose S11 for B #49...\]]
AddEmpty[rm]
AddBlack[ri]
Name[variation]
;
White[pj]
Comment[W #50 rush is certain...]
;
Black[ni]
;
White[pi]
;
Black[qg]
;
White[pg]
;
Black[pf]
;
White[ph]
;
Black[ng]
Comment[...To #57, B forms moyo at middle -- not a bad strategy.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Comment[\[After W #42 \(C12\)...\]]
Name[variation \(B #43\)]
;
Comment[B #43 is a tesuji. *However* ...]
Black[bm]
;
Comment[W would play #44...]
White[bl]
;
Black[cm]
;
White[dm]
;
Black[cn]
;
Letter[cr]
Comment[...to #48, W sacrifices two stones at the corner. This way, not only W builds a solid wall at the outside, an aji of a\[C2\] hane is still remained. The corner is not clean for B.
\[*** end of variation\]
\[*** type 'g43' to get back to main branch.\]]
White[dl]
)
)
(
;
Name[variation \(W #38\)]
Comment[\[After B #37 \(R10\)...\]]
;
White[qk]
Comment[If W #38 blocks...]
;
Black[rl]
Comment[...B #39...]
;
White[rk]
;
Black[rm]
Comment[...B connects back. W's eyeshapes are deprived, and W would be under attack.
\[*** end of variation\]
\[*** type 'g38' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddWhite[ok]
AddEmpty[rj]
Comment[\[If W #34 plays here...\]]
;
Black[rk]
;
White[nl]
;
Black[nn]
;
White[or]
Comment[... ...]
;
Black[ql]
;
White[om]
;
Black[pn]
Comment[...To here, not only B gains huge territory, W team is still "floating" despite capturing one stone \[at P8\].
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation \(W #34\)]
Comment[\[After B #33 \(R11\)...\]]
;
White[pi]
Comment[If W #34 plays this way...]
;
Black[ph]
;
White[oi]
;
Black[qj]
Comment[...When B #37, W's eyeshapes are lost. W certainly can't be satisfied.
\[*** end of variation\]
\[*** type 'g34' to get back to main branch.\]]
)
)
(
;
Comment[\[After W #30 \(Q8\)...\]]
Name[variation]
;
Comment[If B #31 cuts here...]
Black[ql]
;
White[qk]
;
Black[rl]
;
White[om]
;
Comment[... ...]
Black[nn]
;
White[or]
;
Black[pn]
;
White[pk]
;
Black[rm]
;
Comment[...To here, W #40 gets R13, and W becomes easier.
\[*** end of variation.\]
\[*** type 'g31' to get back to main branch.\]]
White[qg]
)
)
(
;
AddEmpty[pq]
AddWhite[nq]
Comment[If W #24 cuts here...]
Name[variation]
;
Black[pq]
;
White[pn]
;
Comment[...To here, W loses big on territoy. This scheme is not worth a consideration.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
Black[qo]
)
)
(
;
Comment[\[After W #20 \(O5\)...\]]
Name[reference 1 \(B #21\)]
;
Comment[If B #21 cuts...]
Black[oo]
;
White[pp]
;
Black[mp]
;
White[mo]
;
Black[lo]
;
Comment[... ...]
White[lq]
;
Black[mr]
;
White[nm]
;
Black[lr]
;
White[mm]
;
Comment[...To here, an exchange is a certain concequece.
Now let's analyze the efficiency of each side ---
\[*** type 'B' to see this analysis.\]
\[*** end of reference 1\]
\[*** type '\[' to get back to main branch and see ref 2.\]]
Black[ko]
(
;
)
(
;
Comment[Analysis: Each side captured two stones. Although that seems to be equal, but if we take these captured stones out from the board, forming a picture as shown, we can see that although both side have used equal numbers of stones, W's efficiency is slightly higher.
\[*** end of reference\]
\[*** type '\[' to get back.\]]
AddBlack[ko]
AddEmpty[lp][lq][oo][on]
Name[reference]
)
)
(
;
Comment[\[After W #20 \(O5\)...\]]
Name[reference 2 \(B #21\)]
;
Comment[\[If B #21 cut...\]]
Black[oo]
;
Comment[\[These first couple of moves are the same as in reference 1.\]]
White[pp]
;
Black[mp]
;
White[mo]
;
Black[lo]
;
Comment[\[When W #26...\]]
White[lq]
;
Comment[If B #27 to eat the two W stones \[In reference 1, #27 plays at N2\]...]
Black[mn]
;
Comment[...W would #28 \[O3\] and...]
White[nq]
;
Black[nn]
;
Comment[...\[and\] #30 to cut down one B stone at the corner. This way, not only W gained huge on territory, Wa\[L5\] hane move is still remained. Clearly W good.
\[Conclusion of ref 1&2: #21 cut at P5 doesn't lead good result for B\]
\[*** end of reference 2\]
\[*** type 'g21' to get back to main branch.\]]
White[mq]
Letter[ko]
)
)
(
;
Comment[If B #19 Q4...]
AddEmpty[np]
AddBlack[pp]
Name[variation]
;
White[po]
;
Black[pq]
;
Comment[...To here, B P6 stone loses its activity. B is not good.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
White[oo]
)
)
(
;
Comment[\[After B #17 \(K4\)...\]]
Name[variation 1 \(W #18\)]
;
Comment[W #18 keima \[knight jump\]...]
White[mn]
;
Comment[...if B #19 touch...]
Black[qq]
;
Comment[...W #20 hane...]
White[rq]
;
Black[pp]
;
Comment[...#22 atari...]
White[qr]
;
Black[qo]
;
White[pq]
;
Black[rp]
;
Comment[... ...]
White[qq]
;
Black[oo]
;
White[or]
;
Black[nq]
;
White[nr]
;
Comment[... ...]
Black[mq]
;
White[lq]
;
Black[mr]
;
Comment[...To here, locally it comes to an end.
Also when W #18 keima ---
\[*** end of variation 1\]
\[*** type '\[' to get back to main branch and see variation 2.\]]
White[lr]
)
(
;
Comment[\[Again, after B #17 \(K4\)...\]]
Name[variation 2 \(W #18\)]
;
Comment[When W #18 keima \[knight jump\]...]
White[mn]
;
Comment[...B #19 kosumi \["one square" diagonal move\] is also common...]
Black[np]
;
Comment[...If so \[B O4\], W #20 jumps.
At the time, these two diagrams \[varation 1&2\] jumped to my head at first, but then, as the record shows, I adopted an immediate attack.
\[*** end of variation 2\]
\[*** type 'g18' to get back to main branch.\]]
White[kn]
)
)
(
;
Name[variation]
AddWhite[oo]
AddEmpty[qm]
Comment[\[If W chooses to play P5 for #16...\]]
;
Black[no]
;
White[po]
;
Black[np]
;
White[nn]
;
Black[mn]
Comment[... ...]
;
White[nm]
;
Black[lo]
;
White[om]
;
Black[kp]
Comment[\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddBlack[np]
AddEmpty[on]
Comment[\[B #15 to play O4 is also a joseki...\]]
;
White[pn]
;
Black[qq]
;
White[rq]
;
Black[pp]
;
White[qo]
;
Black[qr]
Comment[\[...up to here. Repeat Wu's comment: it's solid.\]
\(* In the above sequence, B #17 \[R3\] could play #21 \[R2\] directly; that would be a common modern joseki, but it had not appeared at this time \[1957\]. *\)
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddEmpty[cp]
AddBlack[bp]
Comment[If B4 "touch" \[for B #11; instead of C4\]...]
;
White[cp]
;
Black[co]
;
White[bq]
;
Black[bn]
;
White[ap]
;
Black[cm]
Comment[...To here, W lives in sente.
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
)
(
;
Name[variation]
AddBlack[cq]
AddEmpty[er]
Comment[If B #9 plays C3 instead of E2...]
;
White[cr]
Comment[W #10 hane, and...]
;
Black[cp]
;
White[er]
Letter[gq][bq]
Comment[...\[and\] E2. Next, W can take either a\[G3\] or b\[B3\]. W is good.
\[The above explains why B chose E2 in the game.\]
\[*** end of variation\]
\[*** type '\[' to get back to main branch.\]]
)
(
;
Name[reference 1 \(W #10\)]
Comment[\[After B #9 \(E2\)...\]]
;
White[dr]
Comment[W #10 blocks...]
;
Black[eq]
;
White[dp]
;
Black[eo]
;
White[bo]
Comment[... ...]
;
Black[bn]
;
White[bp]
;
Black[co]
;
White[br]
Letter[cn][cm]
Comment[... to here, W lives. This is also a joseki.
Note in this sequence, if B #17 \[C5\] played at a\[C6\] or b\[C7\], B would end up with gote. So #17 is better. Also ---
\[*** end of reference 1\]
\[*** type '\[' to get back to main branch and see reference 2.\]]
)
(
;
Name[reference 2 \(W #10\)]
Comment[\[After B #9 \(E2\)...\]]
;
White[dr]
Comment[When W #10...]
;
Black[cp]
Comment[...if B #11 kosumi \[a "one square" diagonal move\]...]
;
White[eq]
;
Black[fq]
;
White[fr]
Comment[... ...]
;
Black[gr]
;
White[es]
;
Black[hq]
Comment[... to here is a certainly sequence. Now, if W gives in a little bit to defend -- Wa\[B2\] wouldn't a bad move.
Of course, W lives even if without B2, but let Ba sente to gain is quite intolerable.
\[*** end of reference 2\]
\[*** type 'g10' to get back to main branch.\]]
Letter[br]
)
)
(
;
Comment[\[After B #7 \(F4\)...\]]
Name[variation 1 \(W #8\)]
;
Comment[B #8 \[C5\] is a common joseki.]
White[co]
;
Comment[But starting with B #9...]
Black[dp]
;
White[cp]
;
Black[cq]
;
White[cr]
;
Comment[... ...]
Black[bq]
;
White[br]
;
Black[eq]
;
White[dr]
;
Black[cn]
;
Comment[... ...]
White[bp]
;
Black[bo]
;
White[aq]
;
Black[dm]
;
White[en]
;
Comment[... to B #23 \[D6\], this joseki gives B a very thick shape.
B's next move can play kakari \[corner approaching\] at either upper left or lower right, and this is exactly W's opening plan.
Or ---
\[*** end of variation 1\]
\[*** type '\[' to get back to main branch and see variation 2.\]]
Black[dn]
)
(
;
Comment[\[Again, after B #7 \(F4\)...\]]
Name[variation 2 \(W #8\)]
;
Comment[\[When W #8...\]]
White[co]
;
Comment[B #9 could choose to play hane from inside. This is a joseki that leads to immediate fights.]
Black[cp]
;
White[dp]
;
Black[cq]
;
White[cr]
;
Black[br]
;
Comment[... ...]
White[dr]
;
Black[bo]
;
White[cn]
;
Black[bn]
;
White[cm]
;
Comment[... ...]
Black[eo]
;
White[bs]
;
Black[bq]
;
White[gq]
;
Black[hp]
;
Comment[... ...]
White[dl]
;
Black[bm]
;
White[bl]
;
Black[ck]
;
White[cl]
;
Black[am]
;
Letter[gp]
Comment[To W #30 \[H2\], it's a local period.
If W #30 chooses to rush at a\[G4\]...
\[*** type 'B' to see a reference\]
\[*** end of variation 2\]
\[*** type 'g8' to get back to main branch.\]]
White[hr]
(
;
)
(
;
Comment[\[Suppose W rushes at G4...\]]
AddWhite[gp]
AddEmpty[hr]
Name[reference]
;
Black[go]
;
White[fq]
;
Black[hq]
;
White[hr]
;
Comment[... ...]
Black[ir]
;
White[ho]
;
Black[gn]
;
White[gs]
;
Black[io]
;
White[ci]
;
Mark[hr][gp]
Comment[To here, it's a joseki that was use often in very early years. In this game, B is quite thick and thus better. So recently, W has chosen to play simply H3 instead of G4 rush.
\[*** end of reference\]
\[*** type '\[' to get back to variation 2 branch.\]]
