(;
GM[1]FF[4]VW[]AP[Many Faces of Go:11.0]
SZ[19]
HA[0]
ST[0]
PB[Dr G Gray, 5 kyu]
PW[C Edwards, 6 kyu]
DT[1971]
PC[1971 Leeds Congress]
KM[5.5]
RE[B+Resign]
SO[BGJ 19, January 1973, Page 4]
AN[J Diamond and J Tilley]
BR[5 kyu]
WR[6 kyu];B[qd]
C[1-7: A good start, no mistakes at all. Black plays 5 in the left \
corner, so that, when White plays 6, Black 7 is an ideal extension \
cum squeeze attack. This occurs frequently and should be learnt.]
;W[cq];B[dc];W[qq];B[ce];W[oc];B[lc]
C[1-7: A good start, no mistakes at all. Black plays 5 in the left \
corner, so that, when White plays 6, Black 7 is an ideal extension \
cum squeeze attack. This occurs frequently and should be learnt.]
LB[lc:7][oc:6][ce:5][qq:4][dc:3][cq:2][qd:1]
;W[oe]
;B[pf];W[qc]
C[White 10: White correctly decides to live in the corner.]
;B[rc];W[pc]
C[White 12: Very bad. White has no base if Black plays A and this \
group will be left floating and subjected to a fierce attack. \
White must play sagari (Z).]
LB[qb:Z][rb:A]
;B[qj]
C[Black 13: A is better to undermine White’s position.]
LB[rb:A]
;W[ql]
C[White 14: A is essential. For the rest of this game A is a key \
point for both.]
LB[rb:A]
;B[me];W[nf];B[mf]
C[Black 17: A little heavy. An attack with keima at B maps out \
more territory and keeps up a more aggressive attack, but A is \
still more important.]
LB[rb:A][lg:B]
;W[ng]
;B[ph];W[jd]
C[White 20: Very bad. This move is too close to Black’s strength. \
White need not worry about Black making too much territory on \
the upper side as Black needs three more moves at least. White \
should play 30 (Z) or C. Later D is a useful point on the upper \
side.]
LB[cj:Z][db:D][jp:C]
;B[jf]
C[Black 21: Good. A move around 22 (Z) would gain territory but \
would weaken Black’s three stones.]
LB[gd:Z]
;W[gd];B[fp];W[dn];B[pp];W[qp];B[po];W[qo]
C[White 28: In this case essential. Black 28 would be too big.]

;B[pq]
C[Black 29: Not so good. There is no need to play on the third \
line as Black shouldn’t expect to make territory there - it was \
White’s position after all! 52 (Z) is the vital point for both \
- "the head of three stones" - White E would be the best answer \
and then Black C is big, threatening 29.]
LB[qm:E][jp:C][pn:Z]
;W[cj]
C[White 30: Black 29 left a very wide gap between Black’s positions \
on the lower side, and White should play C. There are more important \
things than territory now.]
LB[jp:C]
;B[kq]
C[Black 31: 52 (Z), White E and Black C better.]
LB[qm:E][jp:C][pn:Z]
;W[hp]
C[White 32: OK. The gap between 23 and 31 was too wide.]
LB[kq:31][fp:23]
;B[hq]
C[Black 33: Horrible. Don’t attach to weak stones. A simple one \
point jump to 41 (Z) is best.]
LB[fn:Z]
;W[gq]
C[White 34: Better to play 37 (Z). White wants to develop to the \
left of 33, so he should play to the right first.]
LB[hq:33][iq:Z]
;B[gp];W[fq];B[iq];W[ep]
;B[eo]
C[Black 39: This move fills in liberties and doesn’t help Black’s \
shape.]
;W[dp]
(;B[fn]
C[Black 41: Bad. Must play 42 (Z) to capture.]
LB[ho:Z]
;W[ho]
C[White 42: Correct. Black is in trouble here.]
;B[hm]
C[Black 43: Too loose. 46 (Z) would be better.]
LB[gm:Z]
;W[gn]
C[White 44 & 46: Good.]
;B[fo];W[gm]
C[White 44 & 46: Good.]
;B[fm];W[dm]
C[White 48: A game-losing move. Must play 49 (Z). Moves like 48 \
are sometimes good, but here it goes against the rhythm of play.]
LB[gl:Z]
;B[gl]
;W[hl];B[hn]
C[Black 51: White has lost everything he had here.]
;W[pn]
C[White 52 & 54: Good. 52 is a vital point.]
;B[on];W[om]
C[White 52 & 54: Good. 52 is a vital point.]
;B[pm];W[qn]
(;B[pl]
C[Black 57: Rather reckless. A better sequence is shown in the \
variation.]
;W[ol];B[pk];W[nn];B[oo];W[kh]
C[White 62: No. He must strengthen his very weak group 60 etc. \
If he plays G then all will be well.]
LB[no:G][nn:60]
;B[nm]
C[Black 63: Better to play H - attack at a distance.]
LB[ml:H]
;W[mn]
(;B[mm]
C[Black 65: F is correct.]
LB[nl:F]
;W[lm];B[nk];W[ll];B[mk]
(;W[ln]
C[White 70: A little too solid in this position. White must try \
to make eye shape and protect the cut at the same time. The variation \
is recommended.]
;B[kj]
C[Black 71: Good. White has too many weak groups to have much hope \
now.]
;W[lj];B[lk];W[kk];B[li]
C[Black 75: 90 (Z) correct. Don’t play atari unless necessary. \
"Extend one stone in a crosscut".]
LB[jj:Z]
;W[jk];B[ki]
C[Black 77: 90 (Z) correct.]
LB[jj:Z]
;W[gk]
;B[fl]
C[Black 79: Should capture as now White K is no longer sente.]
LB[im:K]

(;W[hj]
C[White 80: See variation.]
;B[il];W[ik];B[jm]
C[Black 83: Good.]
;W[kl]
C[White 84: Must play atari one line to the left.]
;B[ej];W[lh]
C[White 86: Meaningless. Must play A.]
LB[rb:A]
;B[jh]
C[Black 87: He should jump out to P.]
LB[ii:P]
;W[ji]
;B[jg]
C[Black 89: Q correct.]
LB[mi:Q]
;W[jj]
C[White 90: White must play Q, Black takes, White 90. This squeeze \
is a 'must'. White now has three weak groups and no real hope. \
He could play A, O, or R next, but one group must die.]
LB[ke:R][hh:O][rb:A]
)
(;W[im];B[go];W[hk]
C[Later White N is good.]
LB[in:N]
))
(;W[lp];B[mr];W[kj]))
(;B[nl]
C[[Ed: This sequence was not shown in the original article.\]]
;W[ok];B[nj];W[oj];B[oi];W[pj];B[pi];W[nk];B[mk]))
(;B[nm];W[ol];B[nl];W[pl];B[no]))
(;B[ho]
C[[Ed: This ladder was not shown in the original article.\]]
;W[ip];B[jp];W[io];B[in];W[jo];B[ko];W[jn];B[jm]
;W[kn];B[ln];W[km];B[kl];W[lm];B[mm];W[ll];B[lk];W[ml];B[nl]
;W[mk];B[mj];W[nk];B[ok];W[nj];B[ni];W[oj];B[pj];W[oi];B[oh]
;W[pi];B[qi]))
