(;
GM[1]FF[4]VW[]AP[Many Faces of Go:11.0]
SZ[19]
HA[0]
ST[0]
PB[Ge, Yongfei]
PW[Koh, Juyong]
DT[2009-08-04]
PC[The KGS Go Server at http://www.gokgs.com/]
KM[7.5]
TM[7200]
RU[AGA]
US[Max Peterson]
EV[U.S. Open]
GN[U.S. Open, Koh, Juyong vs. Ge, Yongfei,  Round 3, Table 3]
BR[7d]
WR[7d]
RO[3]
OT[5x30 byo-yomi]CA[UTF-8];B[pd];W[dc];B[dp];W[pp];B[de];W[cg];B[cc]
(;W[gc]
C[JKerwin [1p\]: Hi everybody
jungleboy [3d\]: hi!
JKerwin [1p\]: this is James Kerwin, at the US Go Congress
chute [2k\]: hello
ethanb [2d?\]: hi!
Arhiman [3k\]: hi mister kerwin
JKerwin [1p\]: Let me thank kgs for the use of their site allowing \
us to share these games with you
Arhiman [3k\]: thank you for sharing with us
MavsWorld [11k\]: Hello, and thanks for sharing them with us.
chute [2k\]: !
JKerwin [1p\]: At this point Mr. Ge is 1-1 and Mr. Ko is 2-0
OsoAgonar [-\]: :D
JKerwin [1p\]: We'll only take a short look at this game because \
the starting 'joseki' seems pretty determinative
JKerwin [1p\]: then we'll move on to another
JKerwin [1p\]: Please feel free to ask questions
holycarp [-\]: thank you
JKerwin [1p\]: I may not choose to answer them,  but I'll consider \
them all
JKerwin [1p\]: this pattern is showing up recently
freekevin [13k\]: what is "joseki" XD ?
chute [2k\]: after sparing e18 one move later they even spare \
c18 at this point
JKerwin [1p\]: in fact it was in a major Japanese final this year
OsoAgonar [-\]: play simple at C16 seems correct
JKerwin [1p\]: first let's look at the game result
JKerwin [1p\]: back then you didn't see this move much
JKerwin [1p\]: if white wanted to vary]

(;B[db];W[cd];B[ec];W[dd];B[ed];W[cb];B[bd];W[ce];B[cf]
;W[be];B[bf];W[bc];B[df]
C[Yippie [2d\]: b+ a trillion *_*
jantiff [-\]: i like b too
JKerwin [1p\]: I think this is a disaster for black
jantiff [-\]: :)
iPwnNoobs [1k\]: white's better
Phear [-\]: i would rather b at e14
JKerwin [1p\]: it might be acceptable if the ladder wored
AtomicNerd [5k\]: lol
usagi [1d\]: I was taught to count 20 points and less in an enclosure \
as too small!
holycarp [-\]: let him comment please :)]
;W[ee]
C[JKerwin [1p\]: but when black can't capture this cut
usagi [1d\]: Oh, so this is interesting
OsoAgonar [-\]: colapse
JKerwin [1p\]: he ends up with neither territory or power
chute [2k\]: yes - convincing
Newstyle [5k\]: why d14  and not e14 
Newstyle [5k\]: because of peep?
jantiff [-\]: right
JKerwin [1p\]: i found this pattern once
JKerwin [1p\]: but in that case the ladder was good for black
JKerwin [1p\]: for what it's worth, in that game white won the \
game
JKerwin [1p\]: back to the game
JKerwin [1p\]: when white cuts and black can't capture, he has \
to give up one side
JKerwin [1p\]: the upper side is smaller so he givesthat up]
;B[fd]
C[JKerwin [1p\]: but he playes here to get a good price]
;W[ef];B[dg];W[eg];B[dh]
;W[eh];B[ei];W[ge];B[gd];W[hd];B[hc];W[fe];B[ic];W[eb]
C[JKerwin [1p\]: this is about what balck can do, i call it damage \
control
JKerwin [1p\]: but white's territory is big now, and black's 'power' \
isn't that great
expat [4d?\]: does this look slightly better for white?
MavsWorld [11k\]: It looks much better
OsoAgonar [-\]: "slightly"
JKerwin [1p\]: after this white seemed to cruise, i'm sure he \
felt he had the gme won if he didn't blow it
chute [2k\]: slightly ???
JKerwin [1p\]: ok, let's take a peek at the currenet position, \
then move on to another game]
;B[dj]
;W[id];B[kc];W[fq];B[dq];W[iq];B[fp];W[gp];B[go];W[cl];B[hp]
;W[gq];B[cn];W[bn];B[bo];W[dn];B[cm];W[dm];B[dl];W[bl];B[bm]
;W[co];B[an];W[fo];B[el];W[ho];B[gn];W[qf];B[pg];W[pf];B[io]
;W[og];B[hn];W[jq];B[nd];W[qn];B[pm];W[qm];B[pk];W[qc];B[qd]
;W[rd];B[pc];W[rb];B[qb];W[rc];B[or];W[pq];B[lq];W[ep];B[do]
;W[er];B[kr];W[jo];B[jr];W[ir];B[lo];W[jn];B[qr];W[pr];B[ps]
;W[qq];B[sr];
AB[rr]
AE[sr];W[pl];B[ol];W[ql];B[jl];W[dr];B[cr];W[fs]
;B[nk];W[jc];B[jb];W[jd];B[qk];W[rq];B[qg];W[rg];B[rh];W[rf]
;B[oh];W[nh];B[ph];W[ni];B[pn];W[po];B[rl];W[rm];B[rj];W[oj]
;B[ok];W[nn];B[nq];W[qi];B[pi];W[pj];B[qj];W[sh];B[ri];W[om]
;B[jh];W[of];B[lb];W[ld];B[pb];W[mc];B[mb];W[nc];B[nb];W[oc]
;B[od];W[ob];B[kd];W[ke];B[le];W[me];B[lf];W[md];B[mf];W[ne]
;B[oa];W[lc];B[kb];W[kf];B[kg];W[if];B[gb];W[fb];B[ga];W[lg]
;B[lh];W[mg];B[hh];W[fi];B[gi];W[ej];B[di];W[fh];B[fj];W[gj]
;B[fk]
C[JKerwin [1p\]: ok, you can come back to this game later, but let's \
move on
chute [2k\]: there was aji at d11 - apparently white hasn't made \
much of it
JKerwin [1p\]: we'll pop over to board 2 now]
)
(;B[dd]
C[JKerwin [1p\]: this is the current pattern]
;W[db];B[be]
C[JKerwin [1p\]: at this point A and B are miai for black, so black \
is stable
JKerwin [1p\]: the key to B is that black can link over the top \
with C
JKerwin [1p\]: or under with D
JKerwin [1p\]: this is a new pattern, being tried in the last \
couple of years
iPwnNoobs [1k\]: does white choose to extend from the c13 stone \
now?
JKerwin [1p\]: it's not what i was used to when i studied in Japan, \
but go continues to evolve
usagi [1d\]: do you mean by c and b that b is more common that \
c?
Wolftone [5k\]: c is an extension of b?
usagi [1d\]: well, nevermind, sorry :)
Tulkas [11k\]: c is the key to b 
usagi [1d\]: yes
JKerwin [1p\]: after this it varies a lot depending on the other \
stones
stalkor [4k\]: JKerwin, how did you learn it when you studied?
JKerwin [1p\]: often white plays A, sometimes white makes a 2 \
space extension to E, and sometimes white leaves]
LB[cj:E][ci:B][dg:C][bg:D][cb:A]
))
(;W[eb]
C[JKerwin [1p\]: this move makes miai of A and B]
LB[cd:A][hc:B]
))