(;
GM[1]FF[4]VW[]AP[Many Faces of Go:11.0]
SZ[19]
HA[0]
ST[0]
PB[Jon Diamond, 5d]
PW[Matthew Macfadyen, 4d]
PC[London Open 1977/78]
KM[5.5]
RU[Japanese]
RE[b+11]
SO[BGJ 40, February 1978, Page 12]
BR[4633540 dan]
WR[4633524 dan]
C[Copyright British Go Association 1978, 2004]
;B[eq];W[df]
C[White 2,4,6 are a fuseki I have not tried before. The idea is \
to concentrate early on the center, in order to attack.]
;B[pd];W[po];B[cp];W[jj]
C[White 2,4,6 are a fuseki I have not tried before. The idea is \
to concentrate early on the center, in order to attack.]
LB[po:4][df:2]
;B[jd]
C[(Black 7 would well be played top-left but Diamond dislikes all \
joseki.)]
;W[qf]
;B[qi];W[nd];B[pf];W[pg];B[qe]
C[Black 13, 17 are very conservative, leaving him with a lot of \
ground to make up centrally. (Black 13' could well be at White \
14 (A), countering the influence of White 6.)]
LB[jj:6][of:A]
;W[of];B[pe];W[og];B[oc];W[rg]
;B[qm];W[nc];B[rf];W[qg];B[gd];W[qc]
C[White 24 was not intended to kill the corner, merely to strengthen \
White outside while Black ends up defending with Black 29 (A).]
LB[rd:A]
;B[nb];W[mb];B[ob];W[lc]
;B[rd];W[ec]
C[(White 30 loosely surrounds a large corner while aiming under \
the Black 7, 23 group.)]
LB[gd:23][jd:7]
;B[ed]
C[Black 31 - White 56 was a very succesful sequence for me (White).]
;W[dd];B[dc]
C[(31-32-33 cross-cutting is typical Diamond play to settle his \
stones one way or another.)]
LB[dc:33][dd:32][ed:31]
;W[fc]
C[(White 34 is a natural move, strengthening White's weakest stone.)]
;B[fd];W[gc];B[hc];W[db]
;B[cc];W[cd];B[cb];W[eb];B[bd];W[be];B[bc];W[hb];B[ib];W[ic]
;B[hd];W[jb];B[fg];W[cf];B[dh];W[bh];B[bi];W[bg]
C[Black 31 - White 56 was a very succesful sequence for me. Note \
it is probably bad for Black to live in the corner by cutting \
with 51' below 40, since his centre stones will probably die \
and he would have no prospects on the left side. (White's group \
with White 56 is not yet alive, but he can do without 2 eyes \
- the corner dies first.)]
LB[bg:56][bi:55][bh:54][dh:53][cf:52][fg:51][jb:50][hd:49][ic:48][ib:47][hb:46][bc:45][be:44][bd:43][eb:42][cb:41][cd:40][cc:39][db:38][hc:37][gc:36][fd:35][fc:34][dc:33][dd:32][ed:31]
;B[ci];W[jp]
C[White 58' could have been played around Black 59 (A), in order \
to attack Black 9, 19 but I was afraid that a Black play at 58 \
would make his lower left territory too large.]
LB[qm:19][qi:9][qo:A]

;B[qo]
C[59-75 stretches Black's position to the limit, maybe further, \
but it is not clear how I should attack.]
;W[qp];B[pp];W[qq];B[pq];W[pr];B[oo];W[pn];B[ro];W[or]
;B[op];W[pm];B[pl];W[nn];B[mp];W[ql];B[rm]
C[59-75 stretches Black's position to the limit, maybe further, \
but it is not clear how I should attack. Extending at 119 (A) \
with 76' was possible, intending either to kill the lower group \
or the right hand side, but I rejected this because I was not \
sure it would work and I hoped anyway to kill the lower group \
without disturbing the aji (possibilities) on the right side. \
(79 (B) leaves White alive in the corner with one more move, \
which he was anyway, while forcing the useful moves 81 (C), 83 \
(D).)]
LB[rp:D][rq:C][qr:B][qk:A]
;W[lo];B[mo];W[mn]
;B[qr];W[rr];B[rq];W[qs];B[rp];W[qr];B[mr];W[nr]
C[White 86' at 87 (A) would be too reckless - the ensuing semeai \
would probably end in ko and Black has several huge ko threats \
in the upper left corner.]
LB[lp:A]
;B[lp];W[lr]
;B[ko];W[ln];B[kp];W[jq];B[ms];W[kr];B[kn]
C[(Is Black 95 the correct direction of play, rather than, say, \
to the left of 89 or 95 ?)]
;W[nl];B[pk];W[in]
C[Whether or not Black lives, his prospects on the left side are \
severely limited by White 98 - 100.]

;B[kl];W[jm]
C[Whether or not Black lives, his prospects on the left side are \
severely limited by White 98 - 100.]
LB[in:98]
;B[km];W[lk];B[nq];W[sq];B[kk];W[kj];B[ml];W[nk]
;B[mk];W[mj];B[ll];W[ol]
C[White 112 makes bad shape. The sound way to stop Black 130 (A) \
is for White to play there himself. I wanted to be able to play \
118 in sente, but did not see that 112 could be played at 118 \
(B) at once.  If Black 119 (C) then White 130 leaves Black in \
desperate trouble.]
LB[qk:C][pj:B][nm:A]
;B[lj];W[mi];B[li];W[kh];B[lh];W[pj]
;B[qk];W[kg];B[lg];W[kf];B[nj];W[qj];B[oj];W[ok];B[rk];W[oi]
;B[om];W[nm];B[on];W[bp]
C[White 132 - 168: Without examing the sequence in detail, and \
the problems of life and death involved, it is obvious that 132-168 \
is very bad for White. It should have been possible to produce \
an attack on Black's upper left group and reduce Black's moyo \
at the same time, leaving Black with farless than the twenty \
points he obtained lower left. Now a small blunder will suffice \
to lose.]
;B[cq];W[cn];B[en];W[dl];B[io];W[jo]
;B[ho];W[gq];B[jn];W[go];B[hn];W[fr];B[fl];W[co];B[bq];W[eo]
;B[fp];W[dp];B[er];W[fm];B[gp];W[hr];B[fn];W[bk];B[bm];W[bl]
;B[cm];W[dm];B[ap];W[bo];B[dn];W[an];B[do];W[am];B[ek]
C[Black 167 forces White to live on a small scale.]
;W[aj]
C[White 132 - 168: Without examing the sequence in detail, and \
the problems of life and death involved, it is obvious that 132-168 \
is very bad for White. It should have been possible to produce \
an attack on Black's upper left group and reduce Black's moyo \
at the same time, leaving Black with farless than the twenty \
points he obtained lower left. Now a small blunder will suffice \
to lose.]
LB[aj:68][ek:67][am:66][do:65][an:64][dn:63][bo:62][ap:61][dm:60][cm:59][bl:58][bm:57][bk:56][fn:55][hr:54][gp:53][fm:52][er:51][dp:50][fp:49][eo:48][bq:47][co:46][fl:45][fr:44][hn:43][go:42][jn:41][gq:40][ho:39][jo:38][io:37][dl:36][en:35][cn:34][cq:33][bp:32]

;B[ih]
C[Black 169 prepares to make a few points in the centre.]
;W[jh];B[rj]
C[Black 171 and White 172 are both mistakes.]
;W[pi]
C[Black 171 and White 172 are both mistakes. If I had answered \
with 172' at 198 (A), then Black 191 (B) would not work and Black's \
last chances of winning disappears.]
LB[le:B][ni:A]
;B[ii];W[ij];B[if];W[rc];B[ra];W[sf]
;B[re];W[gj];B[ef];W[ai];B[fq];W[fs];B[hs];W[ir];B[es];W[is]
;B[hq];W[gr];B[le]
C[After 191-199 White's position is hopeless.]
;W[lf];B[mf];W[me];B[ke];W[mg];B[mh];W[ni]
;B[ng]
C[After 191-199 White's position is hopeless.  Black eventually \
won by 11 points.]
LB[ng:99][ni:98][mh:97][mg:96][ke:95][me:94][mf:93][lf:92][le:91]
)
