4k vs. 4k game

[billywoods]

Hi all,

I made a few silly mistakes in this game, but white made a lot of crazy decisions that I couldn't deal with. I'd be grateful if someone could look through it for me! (I took black. There's no need to look past move 92.) Thanks!

http://www.lifein19x19.com/forum/download/file.php?id=2493

[Also posted here, but I doubt anyone is reading my rambly thread.]

[EdLee]

(;CA[utf-8]ST[2]RU[Japanese]OT[20x30 byo-yomi]GM[1]AP[CGoban:3]SZ[19]FF[4]DT[2013-01-09]
PC[KGS]PB[billywoods]BR[4k]PW[teofilo]WR[4k]KM[6.5]TM[60]RE[B+Resign]MULTIGOGM[0]
;B[pd]BL[53.234];W[pp]WL[57.125];B[dd]BL[48.837];W[dp]WL[53.45];B[qn]BL[45.672]
;W[on]WL[50.782]
(;B[rp]BL[41.22]C[E. See var.];W[qq]WL[48.682];B[qk]BL[39.511];W[pm]WL[46.79];B[qm]
BL[35.699];W[pl]WL[44.218];B[jq]BL[20.696];W[lq]WL[21.651];B[fq]BL[18.324];W[hq]
WL[19.038];B[fo]BL[16.567];W[ho]WL[14.265];B[dn]BL[13.516];W[en]WL[7.116]
(;B[do]BL[5.952]C[B. Oops.];W[ep]WL[4.014];OB[20]B[eo]BL[30];W[fp]WL[0.399];OB[20]
B[gp]BL[30];OW[20]W[gq]WL[30];OB[20]B[cp]BL[30];OW[20]W[eq]WL[30];OB[20]B[go]BL[30]
;OW[20]W[cq]WL[30];OB[20]B[hp]BL[30];OW[20]W[ko]WL[30];OB[20]B[iq]BL[30];OW[20]
W[fr]WL[30];OB[20]B[fc]BL[30];OW[20]W[cj]WL[30];OB[20]B[ch]BL[30];OW[20]W[bd]WL[30]
;OB[20]B[cc]BL[30];OW[20]W[cf]WL[30];OB[20]B[eh]BL[30];OW[20]W[ej]WL[30]
(;OB[20]B[di]BL[30]C[E. See var.]
(;OW[20]W[dj]WL[30]C[E. See var.];OB[20]B[gi]BL[30];OW[20]W[bc]WL[30];OB[20]B[bb]
BL[30];OW[20]W[cd]WL[30];OB[20]B[dc]BL[30];OW[20]W[ab]WL[30];OB[20]B[cb]BL[30];OW[20]
W[de]WL[30]
(;OB[20]B[gk]BL[30]C[E. See var.];OW[20]W[bm]WL[30];OB[20]B[bn]BL[30];OW[20]W[cm]
WL[30];OB[20]B[cn]BL[30];OW[20]W[bi]WL[30];OB[20]B[bh]BL[30];OW[20]W[bk]WL[30];OB[20]
B[dl]BL[30];OW[20]W[cl]WL[30];OB[20]B[dk]BL[30];OW[20]W[al]WL[30];OB[20]B[ci]BL[30]
;OW[20]W[aj]WL[30];OB[20]B[ee]BL[30];OW[20]W[ef]WL[30];OB[20]B[ff]BL[30];OW[20]
W[fe]WL[30];OB[20]B[ed]BL[30];OW[20]W[fg]WL[30];OB[20]B[gf]BL[30];OW[20]W[eg]WL[30]
(;OB[20]B[gg]BL[30]C[E. See var.];OW[20]W[fh]WL[30];OB[20]B[fi]BL[30];OW[20]W[ei]
WL[30];OB[20]B[dh]BL[30];OW[20]W[bg]WL[30];OB[20]B[qf]BL[30];OW[20]W[pc]WL[30];OB[20]
B[oc]BL[30];OW[20]W[qc]WL[30];OB[20]B[ob]BL[30];OW[20]W[re]WL[30];OB[20]B[qe]BL[30]
;OW[20]W[rf]WL[30];OB[20]B[qg]BL[30];OW[20]W[rg]WL[30];OB[20]B[oj]BL[30];OW[20]
W[kf]WL[30];OB[20]B[kh]BL[30];OW[20]W[kd]WL[30];OB[20]B[mg]BL[30];OW[19]W[me]WL[30]
;OB[20]B[mf]BL[30];OW[19]W[ne]WL[30];OB[20]B[mc]BL[30];OW[19]W[lf]WL[30];OB[20]
B[ld]BL[30];OW[19]W[le]WL[30];OB[20]B[kc]BL[30];OW[19]W[jd]WL[30];OB[20]B[jc]BL[30]
;OW[19]W[if]WL[30];OB[20]B[ih]BL[30];OW[19]W[ic]WL[30];OB[20]B[hd]BL[30];OW[19]
W[id]WL[30];OB[20]B[ib]BL[30];OW[19]W[hb]WL[30];OB[20]B[jb]BL[30];OW[19]W[hc]WL[30]
;OB[20]B[he]BL[30];OW[19]W[fb]WL[30];OB[20]B[eb]BL[30];OW[19]W[jg]WL[30];OB[20]
B[jh]BL[30];OW[19]W[od]WL[30];OB[20]B[qd]BL[30];OW[19]W[rd]WL[30];OB[20]B[og]BL[30]
;OW[19]W[of]WL[30];OB[20]B[ng]BL[30];OW[19]W[gh]WL[30];OB[19]B[hg]BL[30];OW[19]
W[hh]WL[30];OB[19]B[ig]BL[30];OW[19]W[lh]WL[30];OB[19]B[lg]BL[30];OW[19]W[kg]WL[30]
;OB[19]B[fd]BL[30];OW[16]W[lb]WL[30];OB[19]B[lc]BL[30];OW[16]W[mb]WL[30];OB[19]
B[nb]BL[30];OW[16]W[nd]WL[30];OB[19]B[ma]BL[30];OW[16]W[ka]WL[30];OB[19]B[kb]BL[30]
;OW[16]W[la]WL[30];OB[19]B[ja]BL[30];OW[16]W[pg]WL[30];OB[19]B[ph]BL[30];OW[16]
W[pf]WL[30];OB[19]B[qh]BL[30];OW[16]W[nf]WL[30];OB[19]B[pe]BL[30])
(;B[fi]))
(;B[ee]))
(;W[fk]))
(;B[dg]))
(;B[eo]C[B. This was probably better.];W[do];B[cn]))
(;B[qq]))

[billywoods]

Thanks, Ed!

I have one follow-up question, if you don't mind. In my variation at move 23, you suggest that I ladder the white stone directly, but then white gets to come out (settling and making third line territory) with C6 and C7, and I'm not locally alive - which feels like a pretty bad result given that I started with three approaches on the corner. I played C6 to threaten the corner first - if white doesn't respond and comes out at 'a' instead, the corner's dead, the 'a' group is weak, and my groups connect. If white saves the corner (I haven't read out how/whether this is possible...), I ladder 'a', and white's corner makes no points and I have thickness pointing towards the left-hand side. Am I missing something?

[golem7]

Hi Billy and Ed!

I agree with Billy concerning the variation from move 21. Letting white get c6 in sente + c7 would be too good for white. After black c6 white has to respond somehow in the corner and black can capture the cutting stone with a much better position.

One more thing: black 13 tenuki is fine, white cannot cut with 14. If he does, black captures the cutting stone and his two stones are fine with simple extending. Ed probably overlooked this, I know he can do better.

[billywoods]

Thanks, golem7!

[EdLee]

billywoods, golem7, thanks -- bad brain. Will double check later. (Edited SGF.)

[SoDesuNe]

Some ideas and thoughts =)

(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]TM[60]OT[20x30 byo-yomi]
PW[teofilo]PB[billywoods]WR[4k]BR[4k]DT[2013-01-09]PC[The KGS Go Server at http://www.gokgs.com/]RE[B+Resign]
;B[pd]BL[53.234]
;W[pp]WL[57.125]
;B[dd]BL[48.837]
;W[dp]WL[53.45]
;B[qn]BL[45.672]
;W[on]WL[50.782]TR[jp]C[SoDesuNe:
This move strikes me as odd. It tries to make a wall without an extension (see marked point). This lessens the value of this wall since you can easily splitt his bottom in the future.]
;B[rp]BL[41.22]LB[pl:A][qq:B]C[SoDesuNe:
I feel this is somewhat lukewarm.
In my opinion, you have essentially two possibilities: A and B. As EdLee pointed out, B should be good for Black. White will most likely block towards the bottom (Q3 - otherwise what is the point in P6?) but his shape will be rather unfinished, I think. So he has to either invest on more move to make shape and end in Gote (so you can split the bottom) or extend from his wall and leave behind weaknesses (so you can easier reduce later).
]
;W[qq]WL[48.682]
;B[qk]BL[39.511]
;W[pm]WL[46.79]
;B[qm]BL[35.699]
;W[pl]WL[44.218]C[SoDesuNe:
Big, but I don't see a capture happening.

See variation on next move.]
;B[jq]BL[20.696]LB[iq:A]C[SoDesuNe:
I'm inclined to play A here. Easier to settle.]
(;W[lq]WL[21.651]
;B[fq]BL[18.324]
;W[hq]WL[19.038]C[SoDesuNe:
I think this is good for White here. Uses his "thickness" on the right to attack. This is why I would have thought about playing A earlier.]
;B[fo]BL[16.567]LB[cn:1][dn:A][hp:2][ip:B][dr:3][hr:C]C[Should I have jumped with the other stone, since building the lower side is what white wants? (It feels much more severe to attack the corner, but I'm unsure.)

SoDesuNe:
No.
If you play the three-point-extension you have to play this move in almost all circumstances - makes A and B Miai for Black. If you want to derivate, then you have to start earlier (see move #13).
One possibility is to play C here, focuses on settleing quickly. One pattern is: C, 1, 2, 3. Could be even then, although strategically bad for White, I think. His wall has not much impact anymore but he got the corner while threating you.]
;W[ho]WL[14.265]
;B[dn]BL[13.516]
;W[en]WL[7.116]
(;B[do]BL[5.952]C[Oops.

SoDesuNe:
Yes, your variation is better but I'm a little bit with Ed on the ladder issue. Unless you know you can capture the corner unconditionally, which I don't see as so easy, your descend is risky.

See variation for my thoughts.]
;W[ep]WL[4.014]
;B[eo]BL[30]OB[20]
;W[fp]WL[0.399]
;B[gp]BL[30]OB[20]
;W[gq]WL[30]OW[20]
;B[cp]BL[30]OB[20]
;W[eq]WL[30]OW[20]
;B[go]BL[30]OB[20]
;W[cq]WL[30]OW[20]
;B[hp]BL[30]OB[20]
;W[ko]WL[30]OW[20]
;B[iq]BL[30]OB[20]
;W[fr]WL[30]OW[20]C[Still, I was happy enough with this result. So now I have thickness, so I build the left-hand side...

SoDesuNe:
Yap, this a favourable for Black.]
;B[fc]BL[30]OB[20]LB[cg:A][pk:B]C[SoDesuNe:
I think the left side is too far open for this move. Maybe A is better direction-wise - B is big, too.]
;W[cj]WL[30]OW[20]LB[ci:A]C[And I push this towards my thickness...

SoDesuNe:
White chose the wrong splitting point. A is better. But just the fact that White can easily split and live makes F17 funny, I think.]
;B[ch]BL[30]OB[20]
;W[bd]WL[30]OW[20]C[And white does something crazy, and I don't know how to handle it. This stone seems to live automatically regardless of which way I push it - I was hoping it would come out and I could launch some kind of splitting attack. Perhaps I did it wrongly?

SoDesuNe:
That's the "problem" with the Hoshi point. You can have moves around it, but your opponent has a lot of possibilities to make a living group. As I said earlier I don't think F17 is the right direction.]
;B[cc]BL[30]OB[20]TR[ch]C[SoDesuNe:
I think this is okay, uses the marked stone to attack White.]
;W[cf]WL[30]OW[20]
(;B[eh]BL[30]OB[20]LB[dg:A]C[White can connect here. I shouldn't have played so loosely (though it didn't seem to matter).

SoDesuNe:
Yes, this move let's White do what ever he wants. More pressure!

A for the double attack, White has two weak groups.]
;W[ej]WL[30]OW[20]
;B[di]BL[30]OB[20]LB[dg:A]C[SoDesuNe:
Still A.]
;W[dj]WL[30]OW[20]
;B[gi]BL[30]OB[20]
;W[bc]WL[30]OW[20]
(;B[bb]BL[30]OB[20]LB[dg:A]C[White gained a lot of forcing moves here and lived automatically.

SoDesuNe: I don't see life so easily. But yes, you should have played A earlier.]
;W[cd]WL[30]OW[20]
;B[dc]BL[30]OB[20]
;W[ab]WL[30]OW[20]
;B[cb]BL[30]OB[20]
;W[de]WL[30]OW[20]LB[bg:A][dg:B][di:C]C[SoDesuNe:
A and White only has one eye and needs to run.

Still, if you had played B instead of C you could enclose White and get an enormous wall.]
;B[gk]BL[30]OB[20]
;W[bm]WL[30]OW[20]
(;B[bn]BL[30]OB[20]
;W[cm]WL[30]OW[20]
;B[cn]BL[30]OB[20]
;W[bi]WL[30]OW[20]
;B[bh]BL[30]OB[20]LB[bg:A]C[SoDesuNe:
A threatens the upper group.]
;W[bk]WL[30]OW[20]
;B[dl]BL[30]OB[20]
;W[cl]WL[30]OW[20]
;B[dk]BL[30]OB[20]
;W[al]WL[30]OW[20]
;B[ci]BL[30]OB[20]
;W[aj]WL[30]OW[20]C[SoDesuNe:
Know that your last three moves all erased potential Ko-threats.]
;B[ee]BL[30]OB[20]LB[ef:A][bg:B]C[SoDesuNe:
I feel A is stronger (also helps your sandwich-group), if you want to kill (maybo Ko due to B).]
;W[ef]WL[30]OW[20]
;B[ff]BL[30]OB[20]LB[eh:A]C[SoDesuNe:
Dangerous. Your sandwich-group (A) is not that strong.]
;W[fe]WL[30]OW[20]
;B[ed]BL[30]OB[20]
;W[fg]WL[30]OW[20]
;B[gf]BL[30]OB[20]
;W[eg]WL[30]OW[20]
;B[gg]BL[30]OB[20]C[SoDesuNe:
Yes, wrong side.]
;W[fh]WL[30]OW[20]
;B[fi]BL[30]OB[20]
;W[ei]WL[30]OW[20]
;B[dh]BL[30]OB[20]
;W[bg]WL[30]OW[20]C[Careless.]
;B[qf]BL[30]OB[20]LB[kc:B][md:A]C[SoDesuNe:
Again, I feel this direction is not so important. White can easily split your top with B. A maybe?]
;W[pc]WL[30]OW[20]LB[kc:A]C[SoDesuNe:
White is ahead on points, A should be enough.]
;B[oc]BL[30]OB[20]
;W[qc]WL[30]OW[20]
;B[ob]BL[30]OB[20]
;W[re]WL[30]OW[20]
;B[qe]BL[30]OB[20]
;W[rf]WL[30]OW[20]
;B[qg]BL[30]OB[20]LB[rd:A]C[I don't think white's corner is alive yet, but I have bigger fish to fry...

SoDesuNe:
Your moyo looks good but if you should still think about something like A. Don't neglect to apply pressure!

]
;W[rg]WL[30]OW[20]
;B[oj]BL[30]OB[20]
;W[kf]WL[30]OW[20]C[This stone eventually died, and I won.

SoDesuNe:
It's far too deep, yes.
Q17 lost the game for White.


END OF COMMENTS.]
;B[kh]BL[30]OB[20]
;W[kd]WL[30]OW[20]
;B[mg]BL[30]OB[20]
;W[me]WL[30]OW[19]
;B[mf]BL[30]OB[20]
;W[ne]WL[30]OW[19]
;B[mc]BL[30]OB[20]
;W[lf]WL[30]OW[19]
;B[ld]BL[30]OB[20]
;W[le]WL[30]OW[19]
;B[kc]BL[30]OB[20]
;W[jd]WL[30]OW[19]
;B[jc]BL[30]OB[20]
;W[if]WL[30]OW[19]
;B[ih]BL[30]OB[20]
;W[ic]WL[30]OW[19]
;B[hd]BL[30]OB[20]
;W[id]WL[30]OW[19]
;B[ib]BL[30]OB[20]
;W[hb]WL[30]OW[19]
;B[jb]BL[30]OB[20]
;W[hc]WL[30]OW[19]
;B[he]BL[30]OB[20]
;W[fb]WL[30]OW[19]
;B[eb]BL[30]OB[20]
;W[jg]WL[30]OW[19]
;B[jh]BL[30]OB[20]
;W[od]WL[30]OW[19]
;B[qd]BL[30]OB[20]
;W[rd]WL[30]OW[19]
;B[og]BL[30]OB[20]
;W[of]WL[30]OW[19]
;B[ng]BL[30]OB[20]
;W[gh]WL[30]OW[19]
;B[hg]BL[30]OB[19]
;W[hh]WL[30]OW[19]
;B[ig]BL[30]OB[19]
;W[lh]WL[30]OW[19]
;B[lg]BL[30]OB[19]
;W[kg]WL[30]OW[19]
;B[fd]BL[30]OB[19]
;W[lb]WL[30]OW[16]
;B[lc]BL[30]OB[19]
;W[mb]WL[30]OW[16]
;B[nb]BL[30]OB[19]
;W[nd]WL[30]OW[16]
;B[ma]BL[30]OB[19]
;W[ka]WL[30]OW[16]
;B[kb]BL[30]OB[19]
;W[la]WL[30]OW[16]
;B[ja]BL[30]OB[19]
;W[pg]WL[30]OW[16]
;B[ph]BL[30]OB[19]
;W[pf]WL[30]OW[16]
;B[qh]BL[30]OB[19]
;W[nf]WL[30]OW[16]
;B[pe]BL[30]OB[19]C[teofilo [4k\]: ty
billywoods [4k\]: thanks
])
(;B[bo]C[Contact was a little too aggressive I think.]))
(;B[cb]
;W[cd]
;B[de]
;W[bg]
;B[bh]
;W[bb]
;B[ba]
;W[ce]
;B[ae]TR[cb]C[Dead? Even if not, I stopped white getting out. Triangle feels kind of slack, but it gives white less forcing moves, and the result looks better.]))
(;B[dg]C[Should have kept white separated.]))
(;B[eo]C[This was probably better.]
;W[do]
(;B[cn])
(;B[em]
;W[cn]
;B[fn]
;W[cm]LB[cq:A][hq:B][jq:C]C[SoDesuNe:
Well, I think this is okay for Black. Your group is perfectly safe.
A is still open, so White does not have much territory in the corner despite answering.
B is now considerably weaker and you can think about fighting (seperating White) with C.
Your moves serve purpose, you have different strategically follow-ups. What does White have? A wall without much impact, a weakish group and an open corner.

Think big! ; )])))
(;W[ql]
;B[rl]
;W[rk]
;B[rj]
;W[rm]
;B[sk]LB[rn:A][qo:B]C[SoDesuNe:
A and B are Miai, I think. Big but not threatening.]))

[billywoods]

Very helpful. Thank you!

[SoDesuNe]

I just noticed that you had some variations, which I completely missed.

On move #47: It's always good to think about some alternative moves, very good attitude! Here I'd say there is not much off a difference because White can run, as well, or make a Seki in your variation (starting with White A14, when I'm not mistaken).

On move #55: Your variation is good, it has a better (endgame-)follow-up I think, but lacks pressure again. Now, I think about something like C7 or even B8 to rob White from eye-potential but I did not read any deep. Always look for a potential follow-up or aim for your moves (make Miai situations etc.), then you will be fine ; )