(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]TM[1800]OT[5x30 byo-yomi]
DT[2006-12-24]PC[The KGS Go Server at http://www.gokgs.com/]C[butterdish: hiya
smudge [6k\]: hi!
zee [4k\]: yes
Assu [2d\]: yes :)
agui [4k\]: Hello
agui [4k\]: yes
hikaru44 [17k\]: hi
agui [4k\]: Thanks, you too
]
(;AW[qf][pj][jp][pp][fq]AB[nc][pd][cn][dp]LB[qc:D][qd:E][rd:A][qe:C][re:B]TR[nc][pd]C[agui [4k\]: S15
Zelda23 [6k\]: r15
ligo [?\]: s16
clemi [?\]: S16
Joeri2 [3k\]: S16
zee [4k\]: s16
butterdish: r16 or r15
hansb [1k?\]: when Q10 is black 
freegame [-\]: if b has stone around q10
Nemessis [1d\]: When white has no good extension
agui [4k\]: when black attack this two stones or can make its overconcentrates
Scribe [-\]: Three ways to defend the corner: s16, S15 and R15
Scribe [-\]: R15 is only good when it makes the opponent overconcentrated
Scribe [-\]: white wants to play at f4 anyway, and black e3 provides white an opportunity to play f4
Hachidan [2k\]: teach us about tengen
gacua [3k\]: I play some mirror games, it's very interesting so
Scribe [-\]: s15 can be very good move...black keeps the corner but white gets stronger on the outside...only good when the s12 invasion is not an option
Scribe [-\]: How can White attack the Black corner ?
MRei [2d\]: r17
agui [4k\]: S16
thoel [?\]: slide or san-san
saruman [-\]: s16 and m17
Scribe [-\]: :)
gacua [3k\]: My Xmas present is guojuan lecture ^^
Assu [2d\]: s16 r17 p14 
Scribe [-\]: White can attack with R17, S16 or R16
Scribe [-\]: therefore s16 is sente move that ends in gote
Scribe [-\]: r16 is very good when black is at n17 in place of o17
butterdish: ic thanks
Vanya [3k\]: does o16 stone instead of o17 make a big difference?
sufi [6k?\]: interesting
]
(;B[eq]C[Hachidan [2k\]: ok its cool :D
Assu [2d\]: :P
gacua [3k\]: guojuan, you don't have to apologise
Hachidan [2k\]: teach about the r15 as the first move
Hachidan [2k\]: his right you dont
Hachidan [2k\]: :\]
smudge [6k\]: www.audiogolessons.com
Scribe [-\]: Wu Qingyuan
]
;W[fp]LB[gp:3][hp:2][ip:1]C[Scribe [-\]: In lower left the kick of e3 helps white...not a good kick
gacua [3k\]: Hachidan, you're over concentrating on tengen
Scribe [-\]: 3. makes white overcentrated due to white dual knight's moves
Hachidan [2k\]: i just want a pro openion about tengen
])
(;AB[jp]
(;B[eq]
;W[fp]C[HngryHippo [5k\]: h3
MRei [2d\]: h4
hansb [1k?\]: H4
agui [4k\]: H4
Scribe [-\]: e3 here attacks white due to black k4 stone
butterdish: h3
]
(;B[hp]C[Scribe [-\]: h4 is a better attack on the two white stones than h3
]
;W[hr]
;B[fr]
;W[gr]
;B[er]TR[hp]C[Scribe [-\]: now h4 is on the vital point of the white shape
])
(;B[hq]
;W[hp]
;B[ip]
(;W[hn]C[Scribe [-\]: h4 attack is much more severe than the h3 attack
])
(;W[hr]
;B[ir]
;W[gq]
;B[iq]
;W[hn]C[Scribe [-\]: h3 attack allows white to run with much better shape
])))
(;B[hq]LB[iq:1]TR[jp][hq]C[Scribe [-\]: normally dont touch weak stone, but here k4 makes e3 a strong attack
Scribe [-\]: k4 is much too close to the black thickness
]
;W[cq]
;B[dq]
;W[dr]
;B[er]
;W[cr]
;B[eq]
;W[bo]
;B[bn]
;W[co]
;B[do]C[Scribe [-\]: h3 and k4 are not efficient...too close together
]
;W[cp]
;B[em]LB[em:13][bn:8][cn:10][bo:7][co:9][do:11][cp:12][cq:1][dq:2][eq:6][cr:5][dr:3][er:4]TR[jp]C[Scribe [-\]: after this joseki...black is overconcentrated on the outside
]))
(;AE[jp]AW[iq]AB[kq]
;B[eq]
;W[fp]LB[gq:2][hq:1]TR[fp][fq]C[Scribe [-\]: In this case e3 is a good move as well...the two stones are only two spaces from the single white stone...too close
Scribe [-\]: white now wants j3 at k3 and black L3 at m3
Scribe [-\]: after the hane at f2: corner is now big...white group is not alive...it is weak
]
(;B[fr]
;W[gr]
;B[er])
(;B[jo])
(;B[io]))
(;AE[cn][jp][fq]AW[jq]AB[pp]
;B[lq]
;W[fq]
;B[cn]
(;W[dr]C[Scribe [-\]: particularly in the 1990's...lots of pro play
]
;B[hq]
;W[fo]
;B[ip]
;W[cq]
;B[ck]C[Scribe [-\]: modern joseki
])
(;W[hp]C[vondutch [2k\]: e1?
HngryHippo [5k\]: overconcentrated
vondutch [2k\]: e2 i mean
Assu [2d\]: e3 makes white overconcentrated :)
hansb [1k?\]: black E3
MRei [2d\]: e3?
MRei [2d\]: for b
Hachidan [2k\]: would be awesome
Hachidan [2k\]: teach us about tengen
]
;B[eq]C[HngryHippo [5k\]: only 1 space \\between h4 and f3 and h4 and k3
Hachidan [2k\]: its small and doesnt efficent on the corne
]
(;W[fp]
;B[hr]C[Scribe [-\]: after h4, the kick of e3 makes white overconcentrated again
])
(;W[fr]LB[eq:A][fr:B])))
(;B[rd]LB[qh:A]C[Scribe [-\]: s16 comon professional move that defends the corner and sets up for the invasion of r12 against the white position
]
;W[re]
(;B[qe]
;W[rf]
;B[pf])
(;B[qc]
;W[sd]
;B[sc]
;W[se]))
(;B[qe]
;W[pf])
(;B[re]
;W[rf]
;B[qe]
;W[pf])
(;B[qc])
(;B[]C[butterdish: before white plays
MRei [2d\]: what is difference between r16 and s16<
]
(;W[qc]C[gacua [3k\]: When w surround b
saruman [-\]: ko threath
Zelda23 [6k\]: when there is r14
gacua [3k\]: When w watns to invade and no one can stop him ^^
Jadeite [-\]: When B outside thinkness not worth as much
agui [4k\]: when white is styrong on the side
Scribe [-\]: push once if the ladder is good!
thoel [?\]: yes
MRei [2d\]: yes
agui [4k\]: yes thanks
sufi [6k?\]: yes
Kamisama [5k\]: yes 
Scribe [-\]: Very good lecture Guo Juan
butterdish: can black defend corner with r16?
Scribe [-\]: Very clear
Zelda23 [6k\]: is there a move s17?
]
(;B[pc]C[Assu [2d\]: we want everything :)
]
;W[qd]
;B[pe]C[clemi [?\]: to take black's corner if black has big moyo already
]
;W[qe])
(;B[qd]
(;W[rd]
;B[re]
;W[rc]
;B[qe]
;W[ob]C[Scribe [-\]: R17 is good when White wants to take the corner from Black and does not mind Black getting stronger on the outside.
]
;B[qh]C[Scribe [-\]: white lived
Scribe [-\]: white lost on the right side
])
(;W[pc]C[Scribe [-\]: black appears to have wasted five moves on the right side to split two living groups (at end of variation)
]
;B[oc]
;W[rd]
;B[re]C[Scribe [-\]: this push is to preserve white on the right side as well
]
(;W[rc]
;B[qe]C[Scribe [-\]: white lived
]
(;W[pb]
;B[pf])
(;W[rf]
;B[se]
;W[pf]C[Kamisama [5k\]: but ladder works for black now first right?
Scribe [-\]: p16 cutting point creates a ladder possibility which allows white to live in the corner
Scribe [-\]: black can kill corner at the cost of being completely enclosed
]
(;B[oe]
;W[pb]C[Scribe [-\]: white got corner and right side
])
(;AW[dm]AB[cm]C[Kamisama [5k\]: not anymore :p
]
(;B[oe])
(;B[pb]
;W[qb]
;B[ob]
;W[od]
;B[oe]
;W[nd]C[gacua [3k\]: Painful
]
;B[pe]C[Scribe [-\]: black crashed
]
;W[md]
;B[sd]
;W[nf]C[Assu [2d\]: wrap up :)
]))))
(;W[rb]C[Scribe [-\]: creates ko to live in the corner
]
;B[sd]
;W[sc]))))
(;W[rd]
;B[qc]LB[qd:4][pe:3][of:1][ph:2]C[Scribe [-\]: S16 shares the corner with Black
agui [4k\]: P14
Scribe [-\]: White must defend on the right side NOW
hansb [1k?\]: P14
Assu [2d\]: p14 :)
SsjRadu [1d\]: P14
MRei [2d\]: p14
thoel [?\]: Q12
Vanya [3k\]: q12 
Assu [2d\]: q15 :P
Zark [1d\]: p15
Zelda23 [6k\]: r16
freddo [5d?\]: ^^
Scribe [-\]: r16 denies white a liberty
nicat [2k\]: I was always ty;d that s16 is bad because bl will invade right aw
Scribe [-\]: q15 is very efficient move...sets the stage for white to get very strong
]
(;W[qd]TR[pd][qd]C[Scribe [-\]: r16 is not a good move....bumps head into the wall
])
(;W[ph]C[Scribe [-\]: q12 makes a very solid shape
Scribe [-\]: but is a little bit slow
Scribe [-\]: p14 for moyo
Scribe [-\]: q12 for solid defense
])
(;W[of]C[Scribe [-\]: p14 is the normal defense
Scribe [-\]: black can try a couple invasions, which white must cope with
]
(;B[qh])
(;B[pg]
;W[pf]
(;B[qg])
(;B[pi]C[Kangur [-\]: maybe P13
]
;W[qi]
;B[qh]
;W[oi]
;B[oh])))
(;W[pe]C[Plunder [5k\]: ya... P 13? =)
]
;B[qh]C[Scribe [-\]: q15 is very interesting...locally a good shape for white
Scribe [-\]: still Black does have an invasion possibility
]
;W[od]
;B[oc]
;W[qd]
;B[pc]
;W[ph])
(;W[]
;B[qh]C[Scribe [-\]: now the two white stones are weak
thoel [?\]: yes
agui [4k\]: yes
]
(;W[of]
;B[oh]
;W[mf]
;B[mh])
(;W[ph]
;B[pi]
;W[oi]
;B[qi]
;W[pg]C[Scribe [-\]: two stones must run...they are too valuable to sacrifice
]
;B[qj]
;W[pk]
;B[ql]LB[qc:B][rd:A][oh:1][oj:2]C[Scribe [-\]: white has two cutting points...not a strong shape and Black got the side !
])
(;W[qj]
;B[pg])))
(;W[]
;B[qh]
;W[qc]
;B[qd]
;W[rd]
;B[re]
;W[rc]
;B[qe]
;W[ob])
(;W[qd]
;B[qc]
;W[rc]
(;B[pc]C[Scribe [-\]: R16 also shares the corner
]
;W[re]
;B[qh])
(;B[rd]
;W[qe]
;B[rb]
;W[pc]
;B[qb]
;W[od]
;B[pb]
;W[oc]
;B[ob]
;W[nd]
;B[mc]
;W[le]TR[ob][pb][qb][rb]C[Scribe [-\]: horrible for Black
SsjRadu [1d\]: too low
Jadeite [-\]: see W moyo :)
saruman [-\]: w develop his moyo
hedkandi05 [10k\]: too low
Zelda23 [6k\]: big mojo for w
MRei [2d\]: white got too much
Scribe [-\]: Black has been pressed too low...so many second line stone
])
(;B[qb]C[Scribe [-\]: s16 horrible mistake
Scribe [-\]: r18 also mistake
]
(;W[re])
(;W[pe]))
(;B[qe])))
(;B[qh]C[butterdish: yes
]
;W[qj]
(;B[pg]C[MRei [2d\]: r17
agui [4k\]: R17
Kamisama [5k\]: t17
Vanya [3k\]: yes
Zelda23 [6k\]: yea
]
(;W[qc]C[Assu [2d\]: sansan
Zelda23 [6k\]: r17
]
;B[qd]C[Kamisama [5k\]: r17
]
;W[rd]
;B[re]
;W[rc]
;B[qe]
;W[ob]C[ctw [5k\]: r17
])
(;W[rd]C[akoetou [19k\]: yup
jilles [8k\]: yes
]
;B[qc]C[agui [4k\]: yes
MRei [2d\]: yes
thoel [?\]: yes
ctw [5k\]: yes
gacua [3k\]: Yes
deepthink [3k\]: yes
]))
(;B[pf]
;W[pe]
;B[oe]
;W[qe]
;B[qd]
;W[pg]
;B[of]
;W[qg]
;B[og]C[Scribe [-\]: normal line of play
]
;W[ph]C[Scribe [-\]: classic joseki
]))
(;B[qd]C[MRei [2d\]: ?
deepthink [3k\]: s16?
]
(;W[re]
;B[rd]
;W[sd]
;B[sc]
;W[se]
;B[rb]C[Scribe [-\]: Black r16 to defend is possible
])
(;AE[nc]AB[mc]TR[mc][pd][qd]))
(;B[dd]
;W[cf]
(;B[fc]
;W[]
;B[bd]C[Scribe [-\]: Tenuki ! or k17 or L17
]
;W[hc]C[hansb [1k?\]: elsewhere?
thoel [?\]: K17
Zelda23 [6k\]: k17?
SsjRadu [1d\]: L17
MRei [2d\]: k17
Scribe [-\]: Where should Black play after h17 ?
]
(;B[jc])
(;B[kc])
(;B[fd]C[SsjRadu [1d\]: no
SsjRadu [1d\]: :)
agui [4k\]: no
deepthink [3k\]: no
butterdish: no
jilles [8k\]: f15 perhaps
]))
(;B[fd]C[deepthink [3k\]: gd
]
;W[]
(;B[bd]C[Vanya [3k\]: ic, thank you
]
;W[hc]C[Scribe [-\]: one space high enclosure is out of fashion due to the difficutly in defending the corner especially in light of the larger komi
]
(;B[]
;W[fb])
(;B[fc]TR[fd]))
(;B[ic]
;W[cc]))))
(;B[pd]
;W[dp]
(;B[pq]
;W[dd]
;B[qk]
(;W[jq]
;B[fc]
;W[cf]
;B[jd]
(;W[qf]C[Hachidan [2k\]: teach as about tengen opening :D
]
;B[qe]
;W[pf]
;B[nd]
;W[qi]
;B[ok]LB[qg:2][qh:1]C[Scribe [-\]: These are the three examples of e3 being a good move:  1. sets up a severe attack on white (stone at k4); 2. makes white overconcentrated when white has a two space extension
])
(;W[qc]))
(;W[nc]
(;B[pf]
;W[jd]
;B[jp])
(;B[qf]TR[qf][qk])))
(;B[pp]C[Scribe [-\]: this high move of q14 is much better than r14 due to r9 being on the board already
]
;W[dd]
;B[pj]
;W[nc]
(;B[qf])
(;B[pf]
;W[jd]
;B[fq]
;W[cn]C[Scribe [-\]: again q14 due to q10
]
;B[jp]C[Scribe [-\]: c6 low...there is no moyo to compete with black's moyo
agui [4k\]: yes
thoel [?\]: yes
SsjRadu [1d\]: yes
MRei [2d\]: yes
freccia [19k\]: thx
Scribe [-\]: Xiexie Guo Juan
Vanya [3k\]: very clear, thank you very much
SsjRadu [1d\]: thank you very much
MRei [2d\]: thank you
butterdish: thanks for lesson
xiaoQ [-\]: thx
Slarty [-\]: thank you
sufi [6k?\]: happy holidays GuoJuan
Winters [4k\]: thanks
Zelda23 [6k\]: thx
reed338 [-\]: very interesting, thx!!
zee [4k\]: Thank you for a great lecture
SsjRadu [1d\]: Merry Christmas
krynn [9k\]: thank you very much
thoel [?\]: thank you
]))))