(;
GM[1]FF[4]VW[]AP[Many Faces of Go:10.0]
SZ[19]
HA[0]
ST[1]
PB[Colin Irving, 1d]
PW[Jon Diamond, 1d]
DT[Autumn 1965]
PC[Pontefract Castle, London. 1st British Championship]
KM[5.0]
RE[W+R]
SO[BGJ 41, May 1978,  Page 5]
BR[1 dan]
WR[1 dan]

C[Copyright British Go Association 1978, 2000

Shodans don't play like they used to, Thank Heavens! Jon and
Colin would be the first to admit that their play is only up
to present-day [1978\] standard. No matter. Nothing is as incomprehensible
as a game without mistakes.  
];B[qd];W[cp];B[pq];W[dc];B[oc];W[qo];B[qm];W[oo]
;B[np];W[pl];B[qp];W[eq];B[ro]
C[Black 13: When a move like 11 is ignored it is often very strong
to follow up with another. Black's corner becomes very large
and strong.  
]LB[qp:11]
;W[cj];B[de];W[cg];B[cc];W[ee]
;B[dd];W[ed];B[ec]
C[Black 21: The sequence to white 40, excluding 38 is the 'bread
and butter' tesuji.  
];W[db];B[eb];W[cb];B[bb];W[bc];B[cd];W[ba]
;B[ab];W[ac];B[da];W[aa];B[bb];W[ab];B[ea];W[bd];B[ca];W[df]
;B[bb];W[be]
C[Black 21: The sequence to white 40, excluding 38 is the 'bread
and butter' tesuji. Note especially black 29(34), following the
proverb: 'add a stone and sacrifice two'. This tesuji is surprisingly
common, against the edge as well as the corner.  
]LB[be:40][df:38][ca:37][bd:36][ea:35][aa:32][da:31][ac:30][ab:34][ba:28][cd:27][bc:26][bb:39][cb:24][eb:23][db:22][ec:21]
;B[gc];W[jq];B[lq];W[jo]
C[White 44: A standard strong response to 43, which is too narrow
an extension from his very strong corner. 50(A) is better - a
vital point for reducing White's corner.  
]LB[eo:A][lq:43]
;B[ej];W[rd];B[qc];W[qg]
;B[pi]
C[Black 49: By attacking with a high 4th-line move, white has the
chance to slip under to 53(A) or jump to the centre. Black cannot
stop both, so white takes 50(B).  
]LB[eo:B][ri:A]
;W[eo];B[qh];W[rh];B[ri];W[ph];B[qi];W[rf];B[pg];W[pf]
;B[oh]
C[Black 59: This capture makes black very strong, but white's shape
is almost perfect after 60(A). Not a successful attack for black.
]LB[qe:A]
;W[qe];B[mn]
C[Black 61: His reward for 59 is an attack on 6-8-10 which will
be driven towards the black ponnuki.  
]LB[pl:10][oo:8][qo:6]
;W[nl];B[om];W[pm];B[on];W[pn];B[ol];W[ok]
;B[nn];W[pj];B[qk];W[pk];B[nj];W[nk];B[ll];W[lk];B[kk];W[mj]
;B[ni];W[lh];B[mh];W[mg]
(;B[li]
C[Black 83: This turns out badly.  Black above 77, white 84, black
85, white 83 (see variation) produces a similar shape without
sacrificing a stone. But Black has problems anyway. He would
like to steer between the two White groups, then turn and attack
the upper group - but he has already made that group too strong.
];W[mi];B[nh];W[ki];B[ef];W[eg];B[ff];W[ek]
C[White 90: White 88 weakened black 45. White expands his side
upwards and is now attacking black.  
]LB[ej:45][eg:88]
;B[hq]
;W[ip];B[go];W[gn];B[fq];W[fr];B[jr];W[ir];B[kr];W[iq];B[hn]
;W[ho];B[ne];W[lf];B[le];W[oe];B[nf];W[od];B[nd];W[jf];B[rc]
;W[se];B[sh];W[rg];B[ie];W[je];B[jd];W[he]
C[White 118: Greedy. 119(A) is the focal point of two moyos. Whoever
plays there first will expand his own area while reducing his
opponents.  
]LB[fg:A]
;B[fg];W[if]
C[White 120: Even greedier. Black 121(A) is a tremendous move,
forcing White back in bad shape.  
]LB[eh:A]
;B[eh]
;W[dg];B[dj]
C[Black 123: Naturally; now White's group is in trouble.  
];W[dk];B[ci];W[di];B[dh];W[ch];B[ei];W[bi];B[bj]
C[Black 131: Black's reward is a ko, but this is a bad ko threat
because it only threatens another ko. He should threaten white's
right hand group, or break into the giant left hand corner. 
]
;W[di];B[sc];W[ci];B[sd];W[sg];B[re];W[gd]
C[White 138: White exchanges his threatened group for cutting off
the black centre stones.  
];B[rd];W[fd];B[hc]
;W[ik];B[jk];W[jj];B[id];W[gf];B[il];W[hl];B[hm];W[im];B[hk]
C[Black 151: Black makes a sort of breakthrough, but in the following
sequence can only struggle towards a single eye.  
]
;W[jl];B[gl];W[il];B[fn];W[gk];B[fk];W[gj];B[fl];W[em];B[hp]
;W[io];B[hr];W[is];B[fo];W[fp];B[en];W[do];B[fj];W[gi];B[dn]
;W[cn];B[dm];W[el];B[cm];W[ck];B[bk];W[bn];B[fm];W[bm];B[bl]
;W[fc];B[hg];W[hf];B[fb];W[cb];B[hd];W[ge];B[qn];W[po];B[ql]
;W[dc];B[db];W[ce];B[bb];W[gb];B[cb];W[lp];B[ml];W[mk];B[mp]
;W[kq];B[lo];W[lr];B[kp];W[mr]
C[White wins by resignation.  
])
(;B[kj];W[mi];B[nh];W[li]))
