(
;FF[4]GM[1]
AP[DGS:1.20.5]
PC[Dragon Go Server: https://www.dragongoserver.net/]
DT[2010-09-22,2011-05-26]
GN[sensei-mrand-596669-20110526]
SO[https://www.dragongoserver.net/game.php?gid=596669]
PB[Marc Randolph (mrand)]
PW[The Go Teacher (sensei)]
BR[18k]
WR[13k]
XM[198]
GC[Game ID: 596669
Game Type: GO (1:1)
Rated: N

White Start Rating: 13k (-3%) - Elo rating 797
Black Start Rating: 20k (+26%) - Elo rating 125
White End Rating: 13k (+43%) - Elo rating 842
Black End Rating: 18k (+16%) - Elo rating 316]
OT[30 days with 7 days extra per move]
RU[Japanese]
SZ[19]
KM[6.5]
RE[W+59.5]
;B[pd]
;W[pp]
C[Hi!

White takes a second corner and leaves you the decision between a diagonal and a parallel fuseki.

\[schEkkEr, 10k\]]
;B[dc]
C[I'm still very much a beginner, so I stick with Orthodox fuseki.]
;W[dp]
C[Good choice.

White plays a ninrensei.

\[schEkkEr, 10k\]]
;B[cn]
C[4-4 point low approach]
;W[fq]
C[Good!

White defends.

\[schEkkEr, 10k\]]
;B[bp]
C[Continue standard 4-4 point low approach joseki]
;W[cq]
C[ok]
;B[ck]
C[Complete the 4-4 point low approach low extension, slide, 3-3 Joseki]
;W[qf]
C[ok i extend my moyo
(nik)]
;B[nc]
C[standard low extension response to low approach to 4-4 point]
;W[pj]
C[I play the q10 move to a third stone the fourth line.]
;B[id]
C[I see potential for white to have big space on right side, so I'm torn between attacking/invading vs. trying to take space for myself.  I almost feel like I'm giving up sente with this stone]
;W[de]
C[I think I would have played an extension to your d17 stone. To me it looks a bit like you want to achieve too much with only one stone there, covering the whole top side.

And I think it's the wrong direction: The 3-4 stone needs an extension towards the other side. Now White can play an approach.

\[schEkkEr, 10k\]]
;B[dg]
C[Thank you very much for the feedback.  Every move I would appreciate those types of comments (if a move is too timid, or stretched too thin)!

I had considered the extending d17, but played j16 as dual purpose instead: trying to support top right, as well as extend from top left.  But maybe that was asking too much.  

I answer by crowding white.]
;W[cc]
C[I like d13.
Playing c17 offer white life usually small but sente in this way.

Playing outside for white would have been possible but it seems it making this group really weak, and helping black too much to build his two border AND white can't be efficient to build on the bottom and center with a group which running.

Sourire]
;B[cb]
C[I believe this is the standard response to this attachment]
;W[cd]
C[nothing to say (nik)]
;B[eb]
C[Create good shape]
;W[fe]
C[i escape in the center to invade b moyo]
;B[cg]
C[Keep white from making big space along left side.]
;W[fc]
C[left protected by your move so i play upper side]
;B[dd]
C[extend]
;W[ce]
C[answer to the black forcing move

sourire]
;B[ee]
C[I believe this cut is the proper thing to do.  If not, please feel free to say so!]
;W[ef]
C[this cut seems to be ok =) you have to think about the answers :
1. e14
2. e16
3. tenuki

1. look like the only move
2. white loose the semeai (e16, e14 e17 d18 f18 b17 -> at this stage black alive or win the semeai against c16 by at least 3 or 4 liberties) OR could have play something like e16 e14 b18 b19 a18 g18 b14 b13 a14 (alive on the left border but it's black sente and f17/f15 ultra weak ...)
3. play e14 to go out.

I don't like the f17 move because of the cut. I would have prefer a soft move like g13 which make the cut impossible and avoid the g17 move for white.
If black protect, white can play elsewhere, if black don't protect, it's become a big sente move after.

(but i could have missed smthg after the d16 move =) )

Sourire]
;B[ed]
C[Black connects.  

I welcome detailed critique.  Please let me know if a move is too timid, or stretched too thin, or if there is a more important play elsewhere.

Thank you for the detailed analysis of the corner - I will have to come back and explore further.  For what whatever it is worth, white f17 was the correct response from what I've read.]
;W[df]
C[no problem. Black and White are just playing obvious needed connections.

Sourire]
;B[fd]
C[black cuts.
 
I always welcome critique and punishing moves.]
;W[ff]
C[i play solid to limit my lifes problems. That sequence was just good for black, d16 was a good punishment ;)

"I always welcome critique and punishing moves"
I think the same thing in my own games.

Sourire]
;B[gd]
C[Now comes the hard part for me.  Should I have tenuki'ed here, or is this extension called for to keep white from playing g16?  Would white have even played g16?]
;W[jp]
C[tenuki probably, and if not sure Bg15 is possible and bigger than g16.
If Wg16, B can b17 to search life or f18 also, so you can play elsewhere. Probably white moyo can be invaded to avoid p14 or d6 or k10]
;B[nq]
C[black tries to keep white from making huge area along bottom.

Thank you for the detailed feedback on my previous move. It is obvious to me now that I should not have played g16, although getting that lesson to stick will likely prove difficult.]
;W[oq]
C[With k4 in place I can play this attachment. The space between the corner and k4 is a little too small to build a base.

\[schEkkEr, 10k\]]
;B[np]
C[Joseki]
;W[pn]
C[Joseki too. Goes nicely with q10.

Did you see this result when you played o3?

\[schEkkEr, 10k\]]
;B[lp]
C[This sequence has been joseki, so yes, I knew q6 would be the end result after playing o3. Ignoring joseki, q6 also makes a lot of sense from whites point of view to help secure the corner and make big space on the right.  

The alternative to playing o3 was playing san-san at r3, which seemed like it would only help white make big space on bottom and right.  Although this is feeling pretty small as well.]
;W[jq]
C[Usual move is l3 for white but this look stronger because of the f3 stone.

For information : 
if white have a wall on the right (not the case here) he could have been played the l6 move (Takemiya Masaki \[9p\] explanations in "Le Go Cosmique")

I don't really like o3May black should have continue to put pressure on the f14 group to make moyo. But now blackhave a weak group too, so more difficult =)
Both are running.

Sourire]
;B[mm]
C[Jump out to make space for myself]
;W[lq]
C[White attacks Black's weak group and takes another chunk of territory on the bottom.

\[piotrek_t\]]
;B[kq]
C[Black responds with hane to welcome white]
;W[kp]
C[i think B l3 can't escape ... when B stole your base you have to use fourth line to make space in center ( like Bl4 for exemple, w need to connect at l3, then Bl7 or k 5 ) (nik)]
;B[lo]
C[Indeed - thank you for the feedback.  I made a mistake in predicting the sequence that would likely follow L3.  

Black extends from m4 to m5.  L5 was considered, but white would likely cut.]
;W[kn]
C[w is strong on right, settled. W can push B on right ( play on left : l6 or k7 ) or play  to steal base like n3, but n3 after n4 need for bleck to respond (Bl2 win ) so i prefer to push B on W with sente (waiting for playing e6 or d7 to extend W moyo) (nik)]
;B[mk]
C[Black continues extending]
;W[en]
C[White takes the time to develop in the left bottom corner.

\[schEkkEr, 12k\]]
;B[of]
C[Black does the same in the top right.]
;W[ph]
C[i big difference : B attack r14 in the same time, (nik)]
;B[lf]
C[black adds support to p14.  Is this a reasonable stone to place at this time?]
;W[mi]
C[Concerning playing Bm14 to support Bp14. This does not seem necessary to me. I would have played either Bh14 or h15. This seems to me to put serious pressure on Wd15 group since he may only get 1 eye in the upper left and needs another. Now, notice that both B and W have a weak group. Whoever uses sente better will come out on top.

\[rasa, 7k\]]
;B[pl]
C[Black pushes into white in hopes of carving out space for space for black and keeping pressure on whites group in upper right.

I always welcome critique and punishing moves.]
;W[ol]
C[Counter-attacking is not a bad option. Let's see if it works out.

\[rasa, 7k\]]
;B[om]
C[As I play out different outcomes of continuing to the right, I don't see a high likelihood of making ground that would be kept.  Hopefully this play isn't too small.

I considered p9 also, to put pressure on the upper group, but viewed the potential white connection from p8 to the his lower right group to be something of a threat.]
;W[pm]
C[Oh, a fight! Let's get it on.

\[schEkkEr, 10k\]]
;B[ok]
C[Fights are overrated, but sometimes unavoidable. :-)  I actually don't care about taking the white stone @ p8 - black plays p9 is simply to try to block white from connecting in hopes of carving out some life.]
;W[nl]
C[But it doesn't block w from connecting, I could have played r8.  I have played this was to make you shape worse however as, particularly in a handicap game I don't feel my stones are too threatened.  In a non-handi game r8 likely to be right.

AndrewCresswellJ]
;B[on]
C[Black plays at p6 to keep white from playing there. 

r8 had been considered instead of p9, but blocking white from playing at p9 seemed more important to me.  Maybe it wasn't.]
;W[pk]
;B[ql]
C[Black extends to see where this rabbit hole goes]
;W[nk]
C[You said right, it's a rabbit hole indeed.
The situation is now quite complicated and black has a good chance to get what he was looking for (strengthen his group).
Of course it might also end in total disaster, but the same is true for white.

Tactically this is the only move that makes sense for white, or black just captures these stones and it's immediately over.

Antone]
;B[qm]
C[Very complicated indeed.  so many possible directions to go, none of which have obvious outcomes, at least to this beginner.

White has captured p9.  Not sure if playing p9 in the first place was worth it, although it did keep white occupied for a few turns.

Black decides to put some pressure on the q7-8 group.  Would s8 been better in order to gain liberties?]
;W[qn]
C[S8 now would have been premature I think.

White's corner has some bad aji, so it's up to you to decide how to use it, you can try to live with the R8 stones, or you can use the aji to make moves on the outside forcing, helping strengthen the outside group. Both paths will lead to white fixing his shape (assuming white lives of course) and attacking the other group. 

for instance after this move and white's reply the wedge at q5 which was available to help black's outside is no longer that severe.

So you must choose if you want to try to live inside (and have a weak group outside) or sacrifice the R7 stones in exchange for a strong outside (and a possible attack on the F14 group)

As far as I see it might be possible to live inside in ko. But I suck at L&D so don't trust me, try and read it out for yourself

-Antone-]
;B[rn]
C[Thank you for the detailed analysis... that is the type of things that people trying to learn will be able to really sink their teeth into!

Blank continues extending, as well as limiting white]
;W[ro]
C[That makes sense. I suppose you have a plan here.

White's reply is practically forced

Antone]
;B[qo]
C[Black continues forcing white.  Also considered q5 and s4, but they seemed less likely to produce an acceptable outcome if black assumes white has infinite wisdom.]
;W[po]
C[Forced]
;B[qp]
C[semi-forced]
;W[rm]
C[after white captures this stone and separates black permanently, it looks very hard for black to live inside.

Even so there still are a lot of forcing moves for B

Antone]
;B[rp]
C[Black forces one more time.]
;W[sn]
C[Ok, but just a word of advice:

If you can see a sequence to live or connect out somehow then these moves are great, otherwise it's a bit of a waste to throw them away. They could be massively useful as ko threats later on

Or even better, since white is still kind of short of liberties you can use the aji from the outside.

Antone]
;B[pq]
C[Thanks for the advice :-)  I have been exploring sequences to reduce white liberties but not enough/all of them. It is funny how you can overlook simple things when looking too far ahead on a sequence]
;W[pr]
C[Forced

Antone]
;B[qr]
C[The sequence has played out such that there is only a tiny chance for life for black, and it exists only at the edge.  Black at r3 would likely result in white playing r2, which would mean no life.]
;W[qq]
C[Hmmm, I don't see how black can live inside. Then again I have been proved wrong in the past

Antone]
;B[rq]
C[Probably can't, but I like to make sure.]
;W[pq]
C[Connect

Antone]
;B[oo]
C[Don't see a sane path to life in lower right.  Try to carve out life elsewhere.]
;W[ml]
C[White pushes out to separate n9.

\[schEkkEr, 11k\]]
;B[nm]
C[connect n7 to keep it from getting separated as well]
;W[ll]
C[Push out to connect to the bottom.

I'm not sure whether it kills, but wN5 could be a major problem for you.

\[schEkkEr, 11k\]]
;B[mq]
C[Dual purpose move: Force white and extend strength downwards]
;W[lr]
C[ok (nik)]
;B[mr]
C[black extends again]
;W[kr]
C[White captures that stone and is happy to have a very strong bottom left area.

So, where are you planning to get two eyes?

\[schEkkEr, 11k\]]
;B[mo]
C[They are coming - have patience! ;-)]
;W[ek]
C[Good! Looks like you're secure now.

White keeps building a moyo in the bottom left.

\[schEkkEr, 11k\]]
;B[ei]
C[Black carves out a little more space while interrupting whites upwards extension]
;W[dj]
C[On one hand, good move as that attacks the White e14 group. On the other hand that looks quite ambitious and leaves a gaping hole at d10. You're in for a tough fight ^^

d11 would have been more secure.

\[schEkkEr, 11k\]]
;B[cj]
C[black extends towards sister group and pressure d10]
;W[di]
C[That looks reasonable. c13 will need help, and you make territory on the border. However, White gains strength towards the center and will get a big moyo.

\[schEkkEr, 11k\]]
;B[dh]
C[Black keeps pressure on whites small group]
;W[fh]
C[I prefer to help my top left group first.

\[schEkkEr, 11k\]]
;B[gg]
C[Nice move.  Apply a little more pressure to white]
;W[eh]
C[Forcing White to cut is not so good, I think ^^

\[schEkkEr, 11k\]]
;B[fj]
C[I've got a lot to learn. :-) white extends]
;W[ci]
C[éh woops. f10 look really wrong. It's about cutting white and rescue a stone. That's not easy because white is really strong in the center.
And the other problem is that white will connect by taking black territory and making points.
It seems you want too many things ;)

Sourire]
;B[bi]
C[yeah, hard to not get greedy]
;W[bh]
C[I want to keep you cut apart.

\[schEkkEr, 11k\]]
;B[ai]
C[White is doing a good job keeping pressure on black]
;W[bg]
C[Definitely cut off the d13 group.

\[schEkkEr, 11k\]]
;B[bc]
C[Take some corner space to keep white small]
;W[bd]
C[If you care about the corner space, you'll have to defend, so your move is gote and not so good.

\[schEkkEr, 11k\]]
;B[ab]
C[How right you are.  Black defends]
;W[gh]
C[White tries to get ahead in the corner and to cut off the two black stones from the top.

\[schEkkEr, 11k\]]
;B[gf]
;W[ih]
C[That looks smallish. White has time to keep working on a big moyo in the center/left/bottom.

\[schEkkEr, 11k\]]
;B[kh]
C[Interrupt white and work on black moyo]
;W[jj]
C[This looks as though you've already given up the f10 stones. Maybe there was some aji left, and you could have tried something more active. Now White connects and I guess there's nothing left.

Also, White can still enter via k14.

\[schEkkEr, 11k\]]
;B[ig]
C[Time for holiday break to be over... black tries to continue carving out space.]
;W[jh]
C[That's ok for that purpose. White defends by adding a stone there.

\[schEkkEr, 11k\]]
;B[jg]
C[And likewise, black defends]
;W[rd]
C[Since the center is now settled, white moves to the last unclaimed area on the board. White is happy to share the last corner equally with s16, because the reward for sharing is white sente.

\[Saurus, 9 kyu\]]
;B[qc]
C[Nice move... I was planning to play at s16 at the next opportunity.  Black carves out its "share"]
;W[cl]
C[I guess we are into yose now, so I start by reducing you by as many points as possible while keeping sente.

\[Saurus, 9 kyu\]]
;B[dl]
C[Threaten white]
;W[el]
;B[dm]
C[Black extends]
;W[bq]
C[Taking a big point.

\[Saurus, 9 kyu\]]
;B[rc]
C[Black does the same]
;W[ln]
C[Pushing here. Is this sente?

\[schEkkEr, 11k\]]
;B[mn]
C[Black defends]
;W[ng]
C[Trying to extend as much as possible.

What options for you do you see?

\[schEkkEr, 11k\]]
;B[ki]
C[Black extends in hopes of cutting white k12]
;W[kj]
C[White defends whilst retaining good shape. I think White has nothing to fear from the cut (topazg, 1k)]
;B[em]
C[I think you're correct.  Black cuts down lower.]
;W[fm]
C[Block.

\[schEkkEr, 11k\]]
;B[eo]
C[I'm sure there is a name for this move.]
;W[fn]
C[That's a clamp.

\[schEkkEr, 11k\]]
;B[do]
C[Pull back so that a connection is possible.]
;W[ep]
C[Block you from the bottom.

\[schEkkEr, 11k\]]
;B[fo]
C[black extends]
;W[go]
C[Block.

\[schEkkEr, 11k\]]
;B[cp]
C[enclose area]
;W[dn]
C[Threaten c7. Afterwards I can play f4 in sente.

\[schEkkEr, 11k\]]
;B[dk]
C[Connect]
;W[fp]
C[Connect in sente.

\[schEkkEr, 11k\]]
;B[co]
C[black connects as well]
;W[ej]
C[White must defend here.

\[schEkkEr, 11k\]]
;B[re]
C[Black applies clamp again.]
;W[rf]
;B[rg]
C[probably not a clamp.]
;W[qe]
C[White defends.
\[Al,7k\]]
;B[pg]
C[Misread several times over... black extends!]
;W[qg]
C[Only move. Black play KIKASHI as we say.)
\[Al,7k\]]
;B[qd]
C[Thanks for the new term. Black plays another Kikashi (forcing move)]
;W[se]
C[Sente - forsing move
KIKASHI move that sente and has only ONE GOOD 
anser  from the opponent.)
More strong then sente.
But as you now it is not good to play always
sente or KIKASHI
You should see profit from every move.
Gain something.
\[Al,7k\]]
;B[og]
C[Indeed!  Black extends]
;W[oh]
;B[nf]
C[dual purpose play: keep pressure on white, extend black group, and secure area along top]
;W[mg]
;B[lg]
C[black extends again]
;W[ap]
C[Reasonable move, but looks a bit slow, but looks good in terms of avoiding trouble with W taking wM13. 

The game is in the end-stage (yose), so it's important that you search for moves that are sente (opponent better answer to it or risk a big loss), or at least prevent a sente by the oppnent (so-called reverse-sente).

So W now derives from the center-closing to go for the sente-moves first. Question for you, do you think this W move is sente ?

\[JUG,5k\]]
;B[ao]
C[Yes, it is sente - after white plays a3, black still has to do a follow-up move to secure the c6 group - liberties are too low to leave it unattended]
;W[aq]
C[Correct.]
;B[bn]
C[Black secures a small bit of life]
;W[sc]
C[yeah, just a bit ;-) ... up to 50 points i would say ... as Bs left group probably wouldn't live in worst-case or just lose 6p in best-case when not playing the ko: B tenuki instead of bB6 -> wA6, bB6, wA6, bA7, wA5, bB8.

\[jug,5k\]]
;B[sb]
;W[sd]
;B[rb]
C[black connects]
;W[li]
C[Good.

W finally coming back as bM11 could be next, so this is closing up Ws groups, though is gote (or more precise reverse-sente as it prevents a B sente).

In endgame, the sente-sente moves are much preferred to be taken first, meaning the move would be sente for both sides, whoever takes it first, gets the points. Next best would be reverse-sente, preventing a sente of the opponent. Then sente-gote, which would be a move being sente for you but gote for the opponent. And then last gote-gote moves are least attractive.

The only thing is in endgame a lot of calculations and reading must be done to find out the best order of moves, because also each local situation has a value and it continuously changes while playing.

For example the area at A3 was a 4p-sente-sente: if W plays first W ends sente and gains 2p, if B would have played B ends sente and gains 2p. So the total of this approach at A3 is worth (win 2p + prevent 2p loss).

Another example is area T17: this is a 3p-sente-gote move: if W plays first, W keeps sente and gains 2p, while if B plays first bT18 it would prevent 1p-loss but is gote as W can ignore it.

\[jug,5k\]]
;B[lh]
C[Black connects to gain a point]
;W[mf]
C[... and W does the same.

\[jug,5k\]]
;B[me]
C[black blocks]
;W[hg]
C[Not much to comment any more.]
;B[hf]
;W[hh]
;B[mh]
C[black extends in sente]
;W[nh]
C[I agree.

\[jug,5k\]]
;B[fg]
C[black extends in feeble attempt to regain e13.  I believe it technically reduces white space by one.]
;W[eg]
C[correct, there are many such places around that are Black "right to play" (as they would be gote for W).

\[jug,5k\]]
;B[os]
C[black extends again in futile attempt to regain corner.  Reduces white space]
;W[ps]
C[Yes, but keep in mind, that it's important to take moves first, that end in sente for you. With bP1 if left unattended, wO1 or wN1 may get some prey ... or B find some other end-game-move, that must be answered, because not-answering it would be more damage than W could get by taking bP1.

\[jug,5k\]]
;B[ms]
C[attend]
;W[ah]
;B[bj]
;W[ch]
;B[or]
;W[qk]
;B[op]
;W[pe]
;B[oe]
;W[ji]
;B[ko]
;W[jo]
;B[lm]
;W[km]
;B[ls]
;W[ks]
;B[ge]
;W[ad]
;B[ac]
;W[kl]
;B[]
C[As tempting as it is to try to save the s2 group, it appears to me that it would take a mistake on the part of white for that effort to be successful]
;W[rl]
C[Yps... You can save s2 group after r1 s6 t2 t4 s1
I don't see it sorry....
Bad mistake for both players...
\[Al,7k\]]
;B[]
C[White s1 rather than t4 would have prevented black from living in corner]
;W[]
C[Yeah you are right)
Thanks.
\[Al,7k\]]
C[And thank you all!]
C[Thanks for the game.
 
Now as the game has finished, it would be good to review it again with all the comments in it. Try to use your newly gained experience in current and future games.
Normally it's good to review all your games especially the ones you lost. Try to find where you slipped and what could have been better played. And if you don't understand what was going on in your game, you may request a review at the GTL <http://gtl.xmp.net/> or ask us for help.
 
We hope it was of some help for you and we are looking forward to our next game when you are ready for it.
Have fun!
 
For Team Sensei,Alexander_KK,7k]
;B[]
TB[hc][hd][hb][ha][nn][he][ne][mp][md][na][nb][nd][no][nr][ga][gb][ka][pb][pc][gc][od][ns][oa][ob][oc][mc][mb][je][jf][jd][jc][jb][kg][kf][kb][kc][kd][ke][ja][la][ie][if][ic][ib][ia][ma][fc][lb][lc][ld][le][fb][pa][ra][ca][cm][ba][aa][bb][cl][bk][bl][bm][bo][da][db][aj][qb][qa][fa][ea][ec][ak][sa][am][al][an]
TW[rs][sf][kq][sg][si][sp][so][sq][sr][ss][sm][sl][sh][lj][sj][sk][kk][mj][qj][ql][qm][qs][qi][oi][pi][qh][oj][re][rh][rk][rn][lk][pl][rj][nj][ni][ri][rr][ik][cr][cs][dq][cf][bs][be][bf][br][dr][ds][fk][fl][fr][fi][es][eq][er][as][ar][rg][rq][rp][ok][ei][fj][mk][qp][qo][ae][af][ag][dh][dg][qr][cg][fs][gi][im][in][io][il][ij][hr][hs][ii][ip][iq][jm][jn][jr][jl][jk][ir][is][hq][hp][gn][gp][gq][gm][gl][gj][gk][gr][gs][hm][hn][ho][hl][hk][hi][hj][js]
C[White: 99 territories + 2*13 dead stones(B) + 7 prisoners + 6.5 komi = 138.5
Black: 75 territories + 2*2 dead stones(W) + 0 prisoners = 79
Result: W+59.5]
)
