(;GM[1]FF[4]SZ[19]AP[SmartGo:2.5.0.0]CA[gb2312]
GN[WAGC rd6]
PW[Yohei Sato 6d, Japan]
PB[Kasper Hornbaek 5d, Denmark]
EV[WAGC]RO[6]
DT[2010-05-28]
PC[Hangzhou, China]
KM[6.5]
RE[W+R]
US[transcribed by Chris Garlock]
TM[3600.0]OT[3x30]
SO[www.chinaqiyuan.com]
AN[Michael Redmond 9P]MU[1]
C[WAGC Rd6
May 28, 2010
Hangzhou, China
W: Yohei Sato 6d, Japan
B: Kasper Hornbaek 5d, Denmark
Commentary by Michael Redmond 9P, transcribed by Chris Garlock

]
;B[pd];W[dd];B[pq];W[dq];B[do];W[co];B[cn];W[cp];B[dm];W[fq];B[ci];W[cg]
;B[ei];W[qn]
C[At this point the right side is more important that the territory in the lower right corner, so I prefer the move at A (see var)]
LB[ql:A]
(;B[qp];W[qk];B[qi];W[nc];B[pc];W[kc];B[je]LB[id:A][cc:B]
C[B21 is hoping for an answer at A so that Black can invade at B];W[ke];B[kd]
;W[ld];B[jd];W[jc];B[le]
C[cutting here first actually makes the fight difficult for B];W[kf];B[ic]
;W[md];B[lf]
C[pushing here is a bit too aggressive; protecting at A might be better]
LB[he:A];W[lg];B[mf];W[kg]LB[id:A][oe:B]
C[B has gotten way too busy, with two weak groups, leaving W with the cut at A and the splitting attack at B]
;B[hd];W[oe];B[mg];W[pe]
C[W breaks into the rightside territory and gains profit while fighting in the center]
;B[mh];W[qe];B[rd];W[re];B[qd];W[ki];B[mj];W[hf]
C[I don't really know Sato's game, but he's showing both superior positional judgment and fighting power, as well as a game plan that works]
;B[fc];W[ec];B[fd];W[ef];B[ff];W[fg];B[fe];W[eg];B[ig];W[kk]
C[where should B play? 'A" is a solid move, reinforcing his conenction and preparing to attack W's side group. ]
LB[oj:A];B[ob]
C[premature; people don't like the carpenter's square, but it's a difficult problem because it doesn't die easily. In this case, B simply doesn't have time to protect the corner. ]
;W[oh]
C[This turns out to be a devastating attack];B[oi];W[ni];B[nh];W[ph];B[pi]
;W[nj];B[nk];W[oj];B[pk];W[mi];B[lh];W[pj];B[kh];W[qj]
C[this trade is a large gain for W and B resigns at move 80. He could continue -- W has a solid but relatively small lead -- but the way White has outplayed B might have been a bit dispiriting, causing the early resignation. ]
;B[cc];W[cd];B[eb];W[db];B[dc];W[cb];B[ed];W[bc])
(;B[ql];W[qq];B[qp];W[pp];B[rq];W[qr];B[po];W[op];B[qo];W[rr];B[qf]))