(;GM[1]FF[4]AP[Drago:2.20.01]SZ[19]PW[Kobayashi Satoru]PB[Yamashita Keigo]DT[2007-02-07,08]PC[Japan]GN[Kisei Sen game 3]EV[Kisei Sen]RO[3]RE[B+R];B[pd];W[dd];B[pp];W[dp]
;B[pj]C[This fuseki was popular in the mid 90s, when I was insei: four hoshi fuseki was extermly popular, and then san-ren-sei was quite popular too.
I haven't seen either four hoshis, or san-ren-sei, too much lately: in most of the nowadays fuseki we see combinations of hoshi and komoku.];W[nc];B[fq];W[cn]
;B[nq]L[jp][qq]C[Yamashita is departing from the Takemiya style, which is to play at A.
The problem with A is that it leaves the invasion at B, while this shimari is meant to protect the corner more, and let the black stone in the lower left to take care of itself - that stone can be regarding as a forcing move, I guess.];W[qc]L[jp][qf]TR[nq]SQ[fq][cn]C[This is interesting, because it reminds me of a comment Satoru sensei once made when I was insei: in a relatively simiar position (except that the triangle-marked black stone was at A instead, and the square marked exchange was not made), he said it is bad for blackto not answer white's kakari (in the upper-right): the reasoning was that with san-ren-sei, black is emphasizing the right side, and not answering the kakari allows white to play double-kakari at B, and erase black's influence in an active way.

Of course, it is a matter of style: even at the time of the comment, it was popular among several pro palyers to ignore white's kakari and extend at A on the lower side.

So I find it interesing now to see that he didn't play double kakari, but the more territory oriented invasion in 3x3. The position on the lower side is different too, though, that may make a difference. And also, the current score in the Kisei may make a difference: being 2 points behind after fighting games, I can see why Satoru sensei would want to change styles in this game, and want to go for a solid game instead of a fighting one.];B[qd];W[pc];B[od];W[oc];B[me]
;W[kc]L[ld][le][lc][eq][fp][jp][er][dr]C[Another very solid, territorial move. 
Interesting that white responded on the upper side - I would be nervous about the growing black moyo, and would rather want to play on the lower side: either the D-E-F sequence, or directly at F (fearing that white wouldn't respond at E, but instead force with G-H and then play around F).

Of course, not responding lets black play C later.

Also, if one decided to respond on the upper side, A comes to mind instead of the extension on the 3rd line that white actually played, but that lets black push in sente with B, etc, and increase his central influence a lot.];B[fo]L[jp][dj]C[My instinct would be to play at A with black, to complete the lower side moyo construction. That would start a "Takemiya-like" game for black, and give white the chance to start a moyo contest (white could force at F5, in combication with a move around B, and build his own moyo).
By contrast, this one "flattens out" the left side, so white cannot build any big moyo there; and it widens the black influence so much, that it forces white to invade the lower side right away. In a sense, black is not giving white much choice, and tries to keep the initiative., white is happy to play a move like A, invading such a large area.];W[eq]L[dr][cq]C[White is forcing before invading: it prevents black A, it makes black B less threatening towards white's stones in the corner, and in general it make black heavier. Those black stones could become a weak group later.];B[fr]L[jp]C[Not much choice for black here: he would like to be able to play A, but allowing white to hane at F2 would be unbearable: white's territory in the corner would be too big, and he would reduce blakck's lower side in the process.];W[jp]L[mp]C[White can also play at A instead of directly invading: I guess A is more of a reducing move, while invading is more aggressive, is keeping a closer eye on the black group in the lower-left. Of course, that is stronger than white's invader for now, but depending on how the game evolves it can get heavy and isolated.];B[jn]L[gp][fp][hn][in]C[Black is strong all around, so he can afford to play aggresively.
White would like to counter-attack (forcing A-B, and then either C or D), but he's too weak for now: has to reinforce first.];W[mp]SQ[jn][nq]C[Standard way to get out: white want to "break" the line formed by the two square marked black stones.];B[mq]C[Forcing move: taking white's base away while expanding black's corner territory.];W[lp]L[kr][mm][mn]C[I thought black will play A next, to take white's base away - but I guess white would be just happy to jump at B, reducing black's center.
I thought then about black B next, attacking white from the center (I also thought of C as an alternative to B, but with the same goal: expand black's center while attacking). But then I dismissed both B and C, as being too "unprofessional": black's center is too wide open to worth building.];B[mn]L[np][op][nn][kn][km][in]C[I was wrong: the center is black's largest potential area, and since he has no other good alternative, why not play the natural move...

What should white do next? It occurs to me that I want to get out towards the right, so I don't allow black to seal me in with A: I am thinking about white A, black B, white C - just playing a little bit in that direction to reduce that area.
Then, I think I would like to play white D, black E, white F - mounting a counter-attack against the black stones in the lower left.];W[ln];B[lm]
;W[in]C[White played this move after all, but prior to that he played tsuke in M6, not at A.]L[kn];B[io]
;W[gp]L[ip]C[Isn't this coming a bit late? I would feel nervous with white, being afraid that black might not connect anymore, but play A instead.];B[hn]L[fp]C[Oops, black indeed ignored white's nozoki... white must play A next, don't see other choice.];W[fp]
;B[hq]C[It looks really weird, white not playing that nozoki earlier... it was either very subtle, way over my head (I wouldn't be surprised, so are most pro moves...), or an oversight.];W[mm]L[nn][lo]C[Black A comes to mind, but it  doesn't work, see the variation.
So black is left with B, I guess.]
(;B[nm]C[White has to move out of atari, cannot allow black a ponnuki in the center.];W[ml]L[lo]C[Black wants to play A next, I guess.];B[lo]L[nn]C[White A and try to escape to the right, but it doesn't look good for white.];W[qp]L[nn][iq][hp][hr][qq]C[Wow, totally unexpected: white is testing black's answer here before deciding what to do about his stones on the lower side. 
Black can connect at A and surround all the lower side - (I initially wrote "capture", but on further inspection it looks like the white stones might live locally: for instance white B, black C, and next white D is sente) - but he cannot afford to let white ruin his lower-right corner on a large scale.
I would play black E next.];B[qo]C[Black disagreed, and now it makes sense to me: black wants the center, not the corners, in this game.];W[po]L[pq]C[Black A next?];B[qq]
;W[op]L[rp]C[This was the sealed move; while we see it on day 2, it is actually the last move of day 1.

I was surprised white didn't descend at A: it'a a usual technicque to sacrifice 2 stones instead of 1. White got anyway 2 kikashi (forced moves) in exchange for sacrificing the stone in R4.];B[pq];W[qn];B[rp]
;W[nn]L[kn][mo][np]C[Will black capture at A (which looks like the proper move), or connect at B, to threaten C?]
(;B[kn]
;W[on]L[mo][no][np]C[White would like to force with A first, but he must be worried that black played atari here (P6) or at B.
Actually I guess the real threat is P6, because even now black can cut and get a ko with C, white A, black B.];B[nl]
;W[np]L[mo]C[No rush to play atari in A anymore, since without this move (in O4), white's eye would be a false eye.];B[pm]
;W[ro]L[pn]C[White wants to play a kikashi before defending at A.];B[cq]L[qp][pn]C[Wow, black just doesn't want to defend at A - he's actually looking into creating big ko threats to enable him start a big ko with B instead!];W[gq];B[gr];W[hp];B[ip];W[iq];B[hr]
;W[er]C[White is protecting the corner, but in doing so he lost the possibility for his group on the right to make any eye on the lower side.];B[jq];W[qp];B[rq]
;W[pl]L[ql]C[That is interesting: this was my instinctive move (it's the "shape move"), but then I rejected it when I thought about black's reply at A. I wonder what's going on...]
(;B[om]L[ql]C[Why not A?

Actually white lives easily if black A - I guess black wants to torture white a bit longer.];W[qm];B[qk]
;W[mo]C[Finally, the kikashi.];B[ln];W[ql]
;B[nk]C[Black wants to play A, so he's making sure to have liberties first - not to mention that he's cutting whte's escape route towards the center.]L[pn];W[oj]C[Last move before the second day's lunch.
I thought white will simply live with A, but I guess he wants to create some weakness in black's position first.]L[pn];B[ok];W[pk];B[qj];W[oi];B[qh]
;W[pn]L[bo][mr][nr][cf][jf]C[White finally made 2 eyes, putting an end to the fight that begun when black played tha capping move at K6, 57 moves ago.
The result? White "lived big" inside what used to be black's moyo, and made some potential profit in the lower left (black can still create trouble with A). Black made territory in the lower right (not a lot, though, white can reduce with B to which black has to submit with C), but more importantly black has a lot of potential in the center.

Where next for black: kakari at D? Build the center with E? Invasion at A?];B[bo];W[co];B[bp]
;W[cl]L[bn][dj][dg][bm][dm][cm][br][dh]C[Hm, I thought white will force simply with A (black has to add a stone in the corner), then white B, but I guess that there is too much of a gap between B and the hoshi in the upper left, so that black around C would be painful for white.

So white is trying to play a forcing move against the corner that is as much closer to his hoshi above as possible.

I guess black will force with A, white D, black E, white F, before defending the corner with G. Not clear what white will play next on the left side: at C would be still too far away from his group below, and at H would be just one line too far from the hoshi above for white to be really happy.];B[br]L[gn][go][ho][cj][ci][cc][cf][ek][dk][jf]C[No forcing moves, black defended directly.
Next move is a really important one for white. Where?

White has an unstable group in the lower left. Let's see first just how unstable it is.
If black plays D, white can live locally with B (not A, since black plays B and white cannot cut at C due to lack of liberties). White doesn't really want to be forced to live, but we should keep that possibility in mind.
So, the question is how to prevent black D?

One way is for white to play E, safely extending his group. E is also an extension from the white hoshi above. Given that white already has one extension on the upper side, that makes it a double winged extension from the white hoshi, and that means black will be attracted to the invasion in F (3x3) like a magnet.
While white E, black F isn't necessary bad for white, there is the feeling that white's position lacks "substance" if that happens. If you look at pro games, one very rarely sees large double- winged extensions from a hoshi; the normal pattern is large extension on one side, shimari on the other side, and the reason is to prevent the 3x3 invasions.
Given this, I would consider playing G with white; if black D, white H looks good for black, cause it puts presure on black D, it helps the white group below and gets into the center, diminishing black's influence.
So in response to white G, black will not rush to invade at D, but he migh consider playing from the center (H, or I). It really is a very difficult position...

Another place I'd like to play with white is at J, at the junction of black and white moyos.];W[of]L[pg][qf][og][mg][nd]C[Wow... I would have never thought of this.
Black is not thinking in terms of moyos here, but in terms of groups. That means white doesn't think letting black have the right side territory is a good idea.

White is aiming both at the cut at E, and the split at B.
Black can counter at A (to prevent white B); if white connects at C, black attack the whole white group with D, that cannot be good for white. So if black A, white will regard his last move as a forcing move, and play something else.];B[qf]L[pg][og][mg][mh][nd][pf]TR[ml][mm]SQ[nk][ok][nl][nm][om][pm]C[That's weird: I don't see why black didn't play A.

(I actually did understand why, looking at some variations on Cyberoro: if black A, white B, black C,  first white can cut in sente at E - black needs to defend around F - then white can play tsuke at D for instance, since he has the two triangle marked stones that cut black's square marked stones, so black cannot attack too strongly in that area.];W[pg];B[ph];W[oh];B[mj];W[lh];B[nd];W[ki];B[cj];W[gm];B[eo]
;W[ep];B[gn];W[em];B[ej];W[hl];B[kk];W[im];B[ho]
;W[ch]SQ[ki][lh][oj][oi][oh]TR[cl][cn][co][em][gm][hl][dp]C[Black has a lot of territory, while white's only territory is in the upper right. White needs to put pressure on the 2 black stones and make profit..
That of course will be tough, give that white has 2 weak groups: the triagnle marked one and the square marked one.];B[dh];W[dg];B[cg];W[bg];B[cf];W[di];B[eh];W[ci];B[dj];W[ei]
;B[fi];W[fh];B[eg];W[fj];B[gi];W[bf];B[bj];W[ce];B[fl];W[fk]
;B[el];W[hj];B[dl];W[df]
;B[fm]C[Wow, a huge exchange happended: black just got about 50 points by capturing the white group in the lower left; white needs to turn a lot of the upper left area into territory to make up for that.];W[ke];B[ik];W[hk]
;B[gd]TR[fj][hj][fk][hk][hl][im][gm][in]C[Wow again - black just jumped in. 
The area up there is pretty large, and white still has weak stones - the triangle marked ones in the center.];W[qg];B[rg];W[rf];B[pf];W[og];B[rh];W[rc];B[re];W[he];B[ec]
;W[gb];B[hd];W[ic];B[id];W[hb];B[hi];W[ij];B[hg];W[gf];B[jf]
;W[kg];B[gg];W[ff]
;B[fg]C[White resigned - cannot kill all the black stones in the upper left, so there is no chance for white to make up for the loss in lower left.])
(;B[ql]C[This is where I thought black would play.];W[qm];B[ol]
(;W[pk];B[qk];W[ok]
;B[nk]C[The ladder is good for black.])
(;W[rl];B[pk]
;W[rk]C[White is alive now.];B[pn];W[qo];B[rj]
;W[mo]L[oo]C[Black could start a ko with A, but the loss from losing it would be large - and there are no obvious ko threats...])
(;W[om];B[pk];W[rl];B[rk]
;W[sm]C[White lives, again.])))
(;B[mo];W[ko]
(;B[no]C[Cannot resist like this.];W[kn];B[km];W[np];B[on];W[oo];B[nn]
;W[nl]L[jm]C[Black's position is destroyed: even if he escapes with the heavy dumpling shape group, white A next will provide white with an escape.])
(;B[kn];W[no];B[ln];W[np];B[om];W[on];B[pm];W[pn];B[ql];W[iq]
;B[hp];W[hr];B[gq]
;W[lq]C[White lives in gote; I guess black disliked to just have white live so simple.])))
(;B[nn];W[km];B[lo];W[kn];B[ko];W[jo];B[jm];W[kl];B[mo]
;W[ip]C[White connects to the left.]))
