(;GM[1]FF[4]SZ[19]AP[SmartGo:2.5.0.0]CA[gb2312]
GN[WAGC Round 4]
PW[Nai San Chan 6d, Hong Kong]
PB[Fredrik Blomback 5d, Sweden]
EV[WAGC]RO[4]
DT[2010-05-27]
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 Round 4, 2010-05-27
Hangzhou, China
W: Nai San Chan 6d, Hong Kong
B: Fredrik Blomback 5d, Sweden
Commentary by Michael Redmond 9P, transcribed by Chris Garlock

Sente matters: Black does not need another play at a critical moment and can play away. See Redmond's comment at B49
]
;B[qd];W[dp];B[pp];W[dd];B[fc];W[hc];B[cn];W[fq];B[dg];W[ec];B[cd];W[cc]
;B[ce];W[fd];B[bc];W[cb];B[cj];W[od];B[oc];W[nc];B[pc];W[nd];B[qf];W[nq]
;B[lq];W[no];B[pn];W[kp];B[oq];W[nr];B[kq];W[jp];B[lp];W[lo];B[jq];W[ip]
;B[hr];W[nm];B[fr];W[gq];B[gr];W[er];B[iq];W[pd];B[qc];W[hq];B[ko];W[ln]
(;B[is]
C[Black does not need another play here and can play away. If he wants to play locally, he can cut at A, avoid being squeezed and ruin W's shape. ]
;W[cl];B[dm];W[dl];B[fm];W[el];B[em];W[dj];B[hp];W[jo];B[eq];W[ep];B[dq]
;W[cq];B[dr];W[cr];B[es];W[ho];B[fp];W[gp];B[fo];W[bo];B[bn];W[co];B[ci]
;W[gk];B[go];W[hp];B[ao];W[ap];B[an];W[bq];B[bk];W[df];B[cf];W[dh];B[cg]
;W[pl];B[ql];W[qk];B[qm];W[eg];B[ng];W[pk];B[ld];W[mf];B[lb];W[mb];B[ic]
;W[ib];B[jb];W[id];B[jc];W[hb];B[kf];W[mg];B[kh];W[pf];B[qg];W[ke])
(;B[eq];W[dr];B[ep];W[ho];B[dq];W[cq];B[cp];W[bq];B[do]
C[B has the sente descent at A to guarantee life]LB[fs:A]))