(;GM[1]FF[4]SZ[19]AP[SmartGo:2.5.0.0]CA[UTF-8]
GN[LIVE! RYO MAEDA COMMENTARY: Open Round 2 Board 1 - Yuan Zhou 7d (w) vs Dae Hyuk Ko 7d (b)]
PW[Yuan Zhou]WR[7d]
PB[Dae Hyuk (Daniel) Ko]BR[7d]
EV[2011 US Open]RO[2]
DT[2011-08-1]
PC[The KGS Go Server at http://www.gokgs.com/]
KM[7.5]
US[Dennis Wheeler]
RU[AGA]ST[2]
TM[7200.0]OT[5x30 byo-yomi]
AN[Maeda Ryo 7P]BW[7d]WB[7d]
C[U.S. Open Round 2 Board 1 
August 1, 2011

W: Yuan Zhou 7d 
B: Dae Hyuk Ko 7d
Commentary by Maeda Ryo 6P, transcribed by Chris Garlock
Recorded by Dennis Wheeler

Ladders wind up playing a key role at several crucial points in this game; Maeda Ryo 6P explains why.]
;B[pq];W[qd];B[oc];W[dd];B[dp];W[po];B[qo];W[qn];B[qp]
(;W[mc]
C[USGO4 [-\]: so w plays here instead
];B[pn]
C[USGO4 [-\]: so b plays the "kiai" move
]
(;W[od]
C[USGO4 [-\]: each player insists on playing his own game
USGO4 [-\]: w has 2 choices, here or
dan2dan [1d\]: how big is the cut at Q6
USGO4 [-\]: this is ok but perhaps too peacefl
]
(;B[pd]
C[USGO4 [-\]: correct
USGO4 [-\]: ladder is good for b
LexC [4k\]: which ladder?
jungyhng: q15 ladder
USGO4 [-\]: so this is why maeda's no crazy about this var
mate105 [2d\]: actually two ladders
]
(;W[pe];B[pc];W[nd];B[qc];W[re]
(;B[rc]TR[oe]
C[USGO4 [-\]: this move aims at the cut at p15
];W[qm]
(;B[on]
C[jungyhng: lots of ladders
compendium [?\]: q9
]
(;W[qj]
C[USGO4 [-\]: 3rd line is defensive
]
(;B[jp]
C[USGO4 [-\]: good point
];W[cn];B[dl]
C[USGO4 [-\]: so many choices
prolepsis [8k\]: oh :)
StayBrutal [?\]: instead of b8 what about another extention before then?
]
(;W[em]
C[USGO4 [-\]: not normal but hmm
USGO4 [-\]: this is a diff move
]
(;B[el];W[fm]
C[DuskEagle [3d\]: maeda ryo 6p
];B[co]
C[USGO4 [-\]: attack move
USGO4 [-\]: \\take eyespace
];W[eo]
C[justdidit [1k\]: nice
USGO4 [-\]: good shape but...
];B[ep]
C[ChemBoy613 [-\]: oh he's great :)
]
(;W[bn]
C[josek [6k\]: so e7 was bad?
USGO4 [-\]: b6 no good
];B[fo]
C[USGO4 [-\]: this is painful; so good for b
ChemBoy613 [-\]: sorry, I just got here, who is commenting?
]
(;W[fl];B[cf];W[di]LB[ck:C][bl:B][cl:A]TR[dl][el]
C[USGO4 [-\]: fighting; good
USGO4 [-\]: a, b and c are all sente for b
int3r [4k\]: connections for w?
smogogo [1d\]: sente move for black
justdidit [1k\]: c looks nice here
USGO4 [-\]: that said, b's 2 stones are light; he can exchange them for moves on the upper side
]
;B[ef];W[fd];B[bd]TR[cc]
(;W[dg];B[df];W[bg];B[cc]
(;W[be];B[bf];W[cd];B[bc];W[ce];B[ae]
C[teach [3d\]: b e18 at d17
USGO4 [-\]: w's moves are now on dame; terrible
]
;W[dc];B[ge];W[fe]
C[USGO4 [-\]: w is behind, so must fight
];B[ff];W[gf]
C[USGO4 [-\]: b has one weak group on the left
];B[he]
C[USGO4 [-\]: but w's grp is also weak
];W[gg];B[gc]
C[USGO4 [-\]: nice move
]
(;W[fc];B[gb];W[cb];B[bb];W[eb];B[ca];W[da];B[db];W[ad];B[ac];W[cb];B[ba]
;W[fb]
C[Hollumber [2k\]: could he destroy the eyes with d19?
];B[jc];W[fa];B[db]
C[Hollumber [2k\]: black playing there, before white?
USGO4 [-\]: hanami ko (flower) ko
DuskEagle [3d\]: no, black couldn't D19 cause W F18 is sente on the cut
]
;W[gd];B[hd];W[cb];B[eh];W[db];B[ci];W[nb];B[ob];W[dh];B[bh]TR[gb][gc][jc][hd][ge][he]
C[Hollumber [2k\]: hmm, i see
k11go [2d\]: w K-15 is good?
sasa264 [13k\]: why B don't use e15 as threat ?
USGO4 [-\]: they trade lives locally but now w must kill the b group to win
USGO4 [-\]: w K-15 is good
]
;W[je];B[lb]
C[liverjam99 [2d?\]: w cant win withough killing h16 group?
];W[mb];B[ke]
;W[kd];B[jd];W[jf];B[ld];W[kf];B[kc];W[me];B[ib]
C[liverjam99 [2d?\]: p8, big mojo?
USGO4 [-\]: right; b has too much
];W[mo]
;B[no];W[mn];B[pl];W[fh]
C[USGO4 [-\]: maeda says b has 95% chance of wnning now; unless b has a big accident
epion003 [?\]: how many commentary games will they have a day?
USGO4 [-\]: ok, end of commentary for this game
Nyanjilla [-\]: thankyou
prolepsis [8k\]: thanks very much :D
mate105 [2d\]: thanks you USGO4 :D
rubicon [1d\]: thanks maeda
U96 [1d\]: thanks a lot
DuskEagle [3d\]: thanks :)
Rucker [1k\]: Thanks a bunch! 
mate105 [2d\]: and MR Maeda
justdidit [1k\]: thaks
Hollumber [2k\]: who's maeda?
Nyanjilla [-\]: Maeda-sensei to you...
DuskEagle [3d\]: Maeda Ryo 6p - the commentator
mate105 [2d\]: The pro who commented this game
Hollumber [2k\]: ohhh, thank you! :D
Hollumber [2k\]: maeda-sensei...i'll call him that when he gives me lessons, nyan, :P
USGO4 [-\]: next up is Li Ting
Nyanjilla [-\]: very respectful

END OF GAME COMMENTARY; for the complete game record, go to
http://www.usgo.org/tournaments/crosstab/band-matrix/102

]
;B[bl];W[ck];B[cl];W[cq];B[cp];W[dn];B[ho];W[cj];B[bj];W[ej];B[fi]
C[
])
(;W[gd];B[hd];W[hc];B[fc];W[ec];B[ed];W[ee];B[de];W[ed];B[db]
C[jungyhng: lol
];W[eb];B[fb]
C[USGO4 [-\]: oops
DuskEagle [3d\]: :D
]))
(;W[bf]
C[USGO4 [-\]: this is the vital point
]
(;B[be];W[dc]
C[USGO4 [-\]: good for w
])
(;B[eb];W[be];B[gc]SQ[cf][df][ef]
C[USGO4 [-\]: the marked stones are light; b swapps them for the life on the upper side
]
)))
(;W[cc]
(;B[bh])
(;B[bi]TR[dl][el]
C[USGO4 [-\]: the 2 stones are very connectable
])))
(;W[fc];B[ck];W[mg];B[dn];W[dm];B[cm]
C[evanj [3d\]: maeda ryo 6p
]))
(;W[fo]
C[teach [3d\]: oops
];B[gq]
C[teach [3d\]: b e4 at d7
teach [3d\]: w e5 at d7
USGO4 [-\]: painful but no choice for w
USGO4 [-\]:  better than the game
]
;W[fc];B[dn];W[do];B[dm];W[cp];B[bo];W[cq];B[dr];W[bn]))
(;B[dm];W[dn];B[en];W[eo];B[fn];W[do]
C[USGO4 [-\]: good for w
]))
(;W[en];B[fp];W[bp];B[cq];W[bl]
C[prolepsis [8k\]: seems v good for b
USGO4 [-\]: normal; about even
])
(;W[cq];B[dq];W[cp];B[do];W[cr];B[dn];W[cm];B[dm];W[dr]
C[USGO4 [-\]: tenuki or answer; both ok
USGO4 [-\]: this is normal
]))
(;B[pl];W[ql];B[oj]
C[USGO4 [-\]: w gets pushed down
]))
(;W[pk]
C[USGO4 [-\]: right
USGO4 [-\]: works better with w's wall; mak a big moya
]
))
(;B[pm];W[pl];B[ql];W[rl];B[qk];W[pk];B[rk]
(;W[om])
(;W[on]
C[USGO4 [-\]: AHA; ANOTHER LADDER
])))
(;B[rd];W[qe]
C[USGO4 [-\]: sente alive but in this case no good
];B[cf];W[rc]
(;B[sd])
(;B[rb];W[sd];B[sb]
C[USGO4 [-\]: good for w
])))
(;W[pc];B[pe]
(;W[qc];B[nd]
C[USGO4 [-\]: here's the ladder
])
(;W[ob];B[qc]
(;W[pb])
(;W[nc];B[pb];W[oc];B[rd]
C[USGO4 [-\]: another ladder
]))))
(;B[nd];W[nc];B[pd];W[oe];B[pc];W[pe];B[qc];W[re]TR[nd]
C[rubicon [1d\]: is double hane possible for white?
CardiffGo [3k?\]: You mean 'was'?
USGO4 [-\]: no good; b's corner s alive but the marked stone is wasted
]
))
(;W[pc];B[od];W[pf];B[ne];W[kd];B[ng];W[ph]
C[USGO4 [-\]: locally better for w but because b got the cut at q6, it's fine for b
]
))
(;W[pn];B[nq]
C[mate105 [2d\]: yeah I am waiting for this :D
];W[pj]
C[USGO4 [-\]: Welcome to this morning's pro commentary by Ryo Maeda
USGO4 [-\]: He welcomes your questions
USGO4 [-\]: locally this would be normal, but in this case
]
;B[pe];W[qe];B[pf];W[qg]
C[USGO4 [-\]: b can push w into this low position; too good for b
]))

