(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.50]TM[300]OT[3x20 byo-yomi]
PW[zchen]PB[saintshaka]WR[8d]BR[7d]DT[2009-01-24]PC[The KGS Go Server at http://www.gokgs.com/]RE[B+Resign]
;B[pd]C[The game is "saintshaka", 7-dan (Black) vs "zchen", 8-dan (White)]
;W[dp]
;B[pq]
;W[dc]
;B[fq]
;W[hq]
;B[de]
;W[ce]
;B[cf]
;W[cd]
;B[dg]LB[cn:A]C[It's also possible to start at A]
;W[fc]
;B[ck]
;W[cm]C[The fuseki looks favorable for White]
;B[ek]LB[cq:A][dq:B]C[It's more active to play at A or B]
;W[dq]
;B[fo]C[Now it's heavy. Black must think about sacrificing]
;W[kq]
;B[mq]
;W[qo]LB[fr:A]C[White has a connection at A in reserve, so the tennuki is possible]
;B[ho]
;W[ko]
(;B[jp]C[The wrong shape -]
;W[jq]
;B[qp]
;W[po]
;B[pl]
;W[oq]
;B[op]LB[or:A]C[Normally Black defends at A]
;W[pp]
;B[qq]
(;W[nq]C[The timing is wrong -]
;B[oo]
(;W[on]C[White may think about the trade -]
;B[mp]
;W[pm]
;B[mo]
;W[ql]TR[ko][hq][jq][kq]C[White got a nice shape on the right, but the marked group became weak]
;B[qk]
;W[pk]
;B[ol]
;W[qj]
;B[rk]
;W[rl]
;B[rj]
;W[ok]
;B[qi]
;W[nl]C[The result is fair]
;B[cn]
;W[co]
;B[bn]
;W[dn]
;B[bm]C[The standard invasion]
;W[pr]
;B[qr]
;W[mr]
;B[lr]
;W[or]
(;B[ms]C[Black can easily avoid the ko -]
;W[ns]
;B[nr]
;W[gp]
;B[os]
;W[go]LB[fp:A]C[It's easier to cut at A, so White's lead would be clear]
;B[bo]
;W[bp]
;B[gn]
(;W[dm]C[It's risky! -]
;B[eo]
;W[do]
;B[eq]C[Now White has 2 separated groups. Both of them are weak]
;W[cj]C[An interesting idea]
(;B[cl]C[Black got tricked -]
;W[fn]
;B[en]
;W[fm]
;B[em]
;W[dl]
;B[gm]
;W[dk]
;B[bj]
;W[bi]
;B[ci]
;W[dj]
;B[bk]
;W[ch]C[Black lost a lot of points here]
;B[di]
;W[bg]
;B[ai]
;W[bh]
;B[bq]
(;W[ap]C[It's not the best answer -]
;B[ao]
;W[dh]
;B[ei]
;W[eh]
;B[fi]
(;W[dr]C[The wrong defense -]
;B[fl]
;W[fh]LB[ip:B][br:A]C[It's more urgent to defend at A or B]
;B[kp]
;W[gi]
;B[gh]
;W[fk]
;B[gj]
;W[hi]
;B[gk]
;W[gg]
;B[er]C[The trade is bad for White]
;W[qf]LB[br:A]C[The fatal mistake. White must defend at A as soon as possible]
;B[nc]
;W[rd]
;B[kc]
;W[qc]
;B[cp]
;W[cq]
;B[br]C[White clearly missed it]
(;W[ds]C[I don't see the ways of saving this group -]
;B[hh]C[Very strange!]
;W[hg]
;B[ih]
;W[ig]
;B[jh]
;W[jg]
;B[kh]
(;W[ic]C[White missed his last chance -]
;B[aq]
;W[cp]
;B[ar]C[Now White is dead and the game is over.
It's fun to see 8-dans making 8-kyu mistakes :)]
;W[gr]
;B[es]
;W[ip]
;B[io]
;W[lp]
;B[jo]
;W[kr]
;B[ir]
;W[ob]
;B[kg]
;W[rh]
;B[ib]
;W[hb]
;B[id]
;W[jc]
;B[jd]
;W[kd]
;B[jf]
;W[ld]
;B[fg]
;W[eg]
;B[ff]
;W[ef]
;B[hc]
;W[jb]
;B[kb]
;W[ia]
;B[mc]
;W[lf]
;B[nf]
;W[kf]
;B[gf]
;W[mg]
;B[pf]
;W[ng]
;B[qg]
;W[og]
;B[qe]
;W[rf]
;B[rg]
;W[re]
;B[pg]
;W[oi]
;B[pj]
;W[sg]
;B[oj]
;W[nk]
;B[nj]
;W[ni]
;B[pi]
;W[mj]
;B[ri]
;W[sk]
;B[oc]
;W[nb]
;B[mb]
;W[nd]
;B[md]
;W[of]
;B[oe]
;W[pc]
;B[mf])
(;W[bs]C[If he plays here - he is ko-alive -]
;B[aq]
;W[cp]
;B[as]
;W[ar]LB[al:A]C[White has ko threats around A, so he must be able to live here]))
(;W[bs]
;B[aq]
;W[cp]
;B[ar]
;W[ds]
;B[cr]C[It's dead too]))
(;W[br]
;B[aq]
;W[cp]
(;B[cr]
;W[dr]
;B[bs]
;W[ar]
;B[as]
;W[ds]C[This is the proper way. White's group is alive now])
(;B[dr]
;W[cr]
;B[er]
;W[ar]C[I don't see any problems with this group])))
(;W[ao]
(;B[al]C[Black's territory would be smaller])
(;B[an]
;W[al]
;B[ap]
;W[bl]C[Black cannot play like this, because of the damedzumari])))
(;B[dk]C[This is the only move]))
(;W[fp]C[Again it's better to cut ]))
(;B[ns]
(;W[rp]
;B[rq]
;W[ro]
;B[nr]C[He is faster])
(;W[ms]
;B[ls]
;W[nr]
;B[lq]C[White's group would be killed])))
(;W[mp]
;B[on]
;W[qk]
;B[ql]
;W[rl]
;B[rm]
;W[rj]C[It's enough for White]))
(;W[pm]
;B[or]
;W[ql]C[It's better to start from the attachment]))
(;B[ip]
;W[iq]
;B[jp]
;W[kp]
;B[jq]
;W[jr]
(;B[ir]
;W[hr]
;B[kr]
;W[is]
;B[lr]
;W[fr]C[This is the best way for Black])
(;B[kr]
;W[lr]
;B[ir]
;W[ks]
;B[hr]C[Black can also cut from this side, but I prefer another one])))
